// Code generated by modernc.org/undup from the per-target sqlite_*.go files; DO NOT EDIT.

//go:build (darwin && amd64) || (darwin && arm64) || (freebsd && 386) || (freebsd && amd64) || (linux && 386) || (linux && amd64) || (linux && loong64) || (netbsd && amd64) || (openbsd && amd64)

package sqlite3

import (
	"unsafe"

	"modernc.org/libc"
)

// C documentation
//
//	/* Truncate the text of the string to be no more than N bytes. */
func Xsqlite3_str_truncate(tls *libc.TLS, p uintptr, N int32) {
	if p != uintptr(0) && N >= 0 && libc.Uint32FromInt32(N) < (*Tsqlite3_str)(unsafe.Pointer(p)).FnChar {
		(*Tsqlite3_str)(unsafe.Pointer(p)).FnChar = libc.Uint32FromInt32(N)
		**(**int8)(__ccgo_up((*Tsqlite3_str)(unsafe.Pointer(p)).FzText + uintptr((*Tsqlite3_str)(unsafe.Pointer(p)).FnChar))) = 0
	}
}

// C documentation
//
//	/*
//	** Append all path elements in zPath to the DbPath under construction.
//	*/
func _appendAllPathElements(tls *libc.TLS, pPath uintptr, zPath uintptr) {
	var i, j, v1 int32
	_, _, _ = i, j, v1
	i = 0
	j = 0
	for {
		for **(**int8)(__ccgo_up(zPath + uintptr(i))) != 0 && int32(**(**int8)(__ccgo_up(zPath + uintptr(i)))) != int32('/') {
			i = i + 1
		}
		if i > j {
			_appendOnePathElement(tls, pPath, zPath+uintptr(j), i-j)
		}
		j = i + int32(1)
		goto _2
	_2:
		;
		v1 = i
		i = i + 1
		if !(**(**int8)(__ccgo_up(zPath + uintptr(v1))) != 0) {
			break
		}
	}
}

// C documentation
//
//	/*
//	** Return the P5 value that should be used for a binary comparison
//	** opcode (OP_Eq, OP_Ge etc.) used to compare pExpr1 and pExpr2.
//	*/
func _binaryCompareP5(tls *libc.TLS, pExpr1 uintptr, pExpr2 uintptr, jumpIfNull int32) (r Tu8) {
	var aff Tu8
	_ = aff
	aff = libc.Uint8FromInt8(_sqlite3ExprAffinity(tls, pExpr2))
	aff = libc.Uint8FromInt32(libc.Int32FromUint8(libc.Uint8FromInt8(_sqlite3CompareAffinity(tls, pExpr1, libc.Int8FromUint8(aff)))) | libc.Int32FromUint8(libc.Uint8FromInt32(jumpIfNull)))
	return aff
}

func _fts5AsciiAddExceptions(tls *libc.TLS, p uintptr, zArg uintptr, bTokenChars int32) {
	var i int32
	_ = i
	i = 0
	for {
		if !(**(**int8)(__ccgo_up(zArg + uintptr(i))) != 0) {
			break
		}
		if int32(**(**int8)(__ccgo_up(zArg + uintptr(i))))&int32(0x80) == 0 {
			**(**uint8)(__ccgo_up(p + uintptr(int32(**(**int8)(__ccgo_up(zArg + uintptr(i))))))) = libc.Uint8FromInt32(bTokenChars)
		}
		goto _1
	_1:
		;
		i = i + 1
	}
}

// C documentation
//
//	/*
//	** Tokenize some text using the ascii tokenizer.
//	*/
func _fts5AsciiTokenize(tls *libc.TLS, pTokenizer uintptr, pCtx uintptr, iUnused int32, pText uintptr, nText int32, __ccgo_fp_xToken uintptr) (r int32) {
	bp := tls.Alloc(64)
	defer tls.Free(64)
	var a, p, pFold uintptr
	var ie, is, nByte, nFold, rc int32
	var _ /* aFold at bp+0 */ [64]int8
	_, _, _, _, _, _, _, _ = a, ie, is, nByte, nFold, p, pFold, rc
	p = pTokenizer
	rc = SQLITE_OK
	is = 0
	nFold = int32(64)
	pFold = bp
	a = p
	_ = iUnused
	for is < nText && rc == SQLITE_OK {
		/* Skip any leading divider characters. */
		for is < nText && (int32(**(**int8)(__ccgo_up(pText + uintptr(is))))&int32(0x80) == 0 && libc.Int32FromUint8(**(**uint8)(__ccgo_up(a + uintptr(int32(**(**int8)(__ccgo_up(pText + uintptr(is)))))))) == 0) {
			is = is + 1
		}
		if is == nText {
			break
		}
		/* Count the token characters */
		ie = is + int32(1)
		for ie < nText && (int32(**(**int8)(__ccgo_up(pText + uintptr(ie))))&int32(0x80) != 0 || **(**uint8)(__ccgo_up(a + uintptr(int32(**(**int8)(__ccgo_up(pText + uintptr(ie))))))) != 0) {
			ie = ie + 1
		}
		/* Fold to lower case */
		nByte = ie - is
		if nByte > nFold {
			if pFold != bp {
				Xsqlite3_free(tls, pFold)
			}
			pFold = Xsqlite3_malloc64(tls, libc.Uint64FromInt64(int64(nByte)*int64(2)))
			if pFold == uintptr(0) {
				rc = int32(SQLITE_NOMEM)
				break
			}
			nFold = nByte * int32(2)
		}
		_asciiFold(tls, pFold, pText+uintptr(is), nByte)
		/* Invoke the token callback */
		rc = (*(*func(*libc.TLS, uintptr, int32, uintptr, int32, int32, int32) int32)(unsafe.Pointer(&struct{ uintptr }{__ccgo_fp_xToken})))(tls, pCtx, 0, pFold, nByte, is, ie)
		is = ie + int32(1)
	}
	if pFold != bp {
		Xsqlite3_free(tls, pFold)
	}
	if rc == int32(SQLITE_DONE) {
		rc = SQLITE_OK
	}
	return rc
}

/**************************************************************************
** Start of unicode61 tokenizer implementation.
 */

/*
** The following two macros - READ_UTF8 and WRITE_UTF8 - have been copied
** from the sqlite3 source file utf.c. If this file is compiled as part
** of the amalgamation, they are not required.
 */

// C documentation
//
//	/*
//	** pIn is a UTF-8 encoded string, nIn bytes in size. Return the number of
//	** unicode characters in the string.
//	*/
func _fts5IndexCharlen(tls *libc.TLS, pIn uintptr, nIn int32) (r int32) {
	var i, nChar, v1 int32
	_, _, _ = i, nChar, v1
	nChar = 0
	i = 0
	for i < nIn {
		v1 = i
		i = i + 1
		if libc.Int32FromUint8(libc.Uint8FromInt8(**(**int8)(__ccgo_up(pIn + uintptr(v1))))) >= int32(0xc0) {
			for i < nIn && int32(**(**int8)(__ccgo_up(pIn + uintptr(i))))&int32(0xc0) == int32(0x80) {
				i = i + 1
			}
		}
		nChar = nChar + 1
	}
	return nChar
}

// C documentation
//
//	/* Parse out a number.  Write the value into *pVal if pVal!=0.
//	** return non-zero on success and zero if the next token is not a number.
//	*/
func _geopolyParseNumber(tls *libc.TLS, p uintptr, pVal uintptr) (r int32) {
	bp := tls.Alloc(16)
	defer tls.Free(16)
	var c int8
	var j, seenDP, seenE, v2 int32
	var z uintptr
	var _ /* r at bp+0 */ float64
	_, _, _, _, _, _ = c, j, seenDP, seenE, z, v2
	c = _geopolySkipSpace(tls, p)
	z = (*TGeoParse)(unsafe.Pointer(p)).Fz
	j = 0
	seenDP = 0
	seenE = 0
	if int32(c) == int32('-') {
		j = int32(1)
		c = libc.Int8FromUint8(**(**uint8)(__ccgo_up(z + uintptr(j))))
	}
	if int32(c) == int32('0') && libc.Int32FromUint8(**(**uint8)(__ccgo_up(z + uintptr(j+int32(1))))) >= int32('0') && libc.Int32FromUint8(**(**uint8)(__ccgo_up(z + uintptr(j+int32(1))))) <= int32('9') {
		return 0
	}
	for {
		c = libc.Int8FromUint8(**(**uint8)(__ccgo_up(z + uintptr(j))))
		if libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(c)])&int32(0x04) != 0 {
			goto _1
		}
		if int32(c) == int32('.') {
			if libc.Int32FromUint8(**(**uint8)(__ccgo_up(z + uintptr(j-int32(1))))) == int32('-') {
				return 0
			}
			if seenDP != 0 {
				return 0
			}
			seenDP = int32(1)
			goto _1
		}
		if int32(c) == int32('e') || int32(c) == int32('E') {
			if libc.Int32FromUint8(**(**uint8)(__ccgo_up(z + uintptr(j-int32(1))))) < int32('0') {
				return 0
			}
			if seenE != 0 {
				return -int32(1)
			}
			v2 = libc.Int32FromInt32(1)
			seenE = v2
			seenDP = v2
			c = libc.Int8FromUint8(**(**uint8)(__ccgo_up(z + uintptr(j+int32(1)))))
			if int32(c) == int32('+') || int32(c) == int32('-') {
				j = j + 1
				c = libc.Int8FromUint8(**(**uint8)(__ccgo_up(z + uintptr(j+int32(1)))))
			}
			if int32(c) < int32('0') || int32(c) > int32('9') {
				return 0
			}
			goto _1
		}
		break
		goto _1
	_1:
		;
		j = j + 1
	}
	if libc.Int32FromUint8(**(**uint8)(__ccgo_up(z + uintptr(j-int32(1))))) < int32('0') {
		return 0
	}
	if pVal != 0 {
		_sqlite3AtoF(tls, (*TGeoParse)(unsafe.Pointer(p)).Fz, bp)
		**(**TGeoCoord)(__ccgo_up(pVal)) = float32(**(**float64)(__ccgo_up(bp)))
	}
	**(**uintptr)(__ccgo_up(p)) += uintptr(j)
	return int32(1)
}

// C documentation
//
//	/* Skip whitespace.  Return the next non-whitespace character. */
func _geopolySkipSpace(tls *libc.TLS, p uintptr) (r int8) {
	for _geopolyIsSpace[**(**uint8)(__ccgo_up((*TGeoParse)(unsafe.Pointer(p)).Fz))] != 0 {
		(*TGeoParse)(unsafe.Pointer(p)).Fz = (*TGeoParse)(unsafe.Pointer(p)).Fz + 1
	}
	return libc.Int8FromUint8(**(**uint8)(__ccgo_up((*TGeoParse)(unsafe.Pointer(p)).Fz)))
}

// C documentation
//
//	/*
//	** Convert zDate into one or more integers according to the conversion
//	** specifier zFormat.
//	**
//	** zFormat[] contains 4 characters for each integer converted, except for
//	** the last integer which is specified by three characters.  The meaning
//	** of a four-character format specifiers ABCD is:
//	**
//	**    A:   number of digits to convert.  Always "2" or "4".
//	**    B:   minimum value.  Always "0" or "1".
//	**    C:   maximum value, decoded as:
//	**           a:  12
//	**           b:  14
//	**           c:  24
//	**           d:  31
//	**           e:  59
//	**           f:  9999
//	**    D:   the separator character, or \000 to indicate this is the
//	**         last number to convert.
//	**
//	** Example:  To translate an ISO-8601 date YYYY-MM-DD, the format would
//	** be "40f-21a-20c".  The "40f-" indicates the 4-digit year followed by "-".
//	** The "21a-" indicates the 2-digit month followed by "-".  The "20c" indicates
//	** the 2-digit day which is the last integer in the set.
//	**
//	** The function returns the number of successful conversions.
//	*/
func _getDigits(tls *libc.TLS, zDate uintptr, zFormat uintptr, va uintptr) (r int32) {
	var N, min, nextC, v1 int8
	var ap Tva_list
	var cnt, val int32
	var max Tu16
	_, _, _, _, _, _, _, _ = N, ap, cnt, max, min, nextC, val, v1
	cnt = 0
	ap = va
	for cond := true; cond; cond = nextC != 0 {
		N = int8(int32(**(**int8)(__ccgo_up(zFormat))) - int32('0'))
		min = int8(int32(**(**int8)(__ccgo_up(zFormat + 1))) - int32('0'))
		val = 0
		max = _aMx[int32(**(**int8)(__ccgo_up(zFormat + 2)))-int32('a')]
		nextC = **(**int8)(__ccgo_up(zFormat + 3))
		val = 0
		for {
			v1 = N
			N = N - 1
			if !(v1 != 0) {
				break
			}
			if !(libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(zDate)))])&libc.Int32FromInt32(0x04) != 0) {
				goto end_getDigits
			}
			val = val*int32(10) + int32(**(**int8)(__ccgo_up(zDate))) - int32('0')
			zDate = zDate + 1
		}
		if val < int32(min) || val > libc.Int32FromUint16(max) || int32(nextC) != 0 && int32(nextC) != int32(**(**int8)(__ccgo_up(zDate))) {
			goto end_getDigits
		}
		**(**int32)(__ccgo_up(libc.VaUintptr(&ap))) = val
		zDate = zDate + 1
		cnt = cnt + 1
		zFormat = zFormat + uintptr(4)
	}
	goto end_getDigits
end_getDigits:
	;
	_ = ap
	return cnt
}

// C documentation
//
//	/*
//	** The first parameter is a pointer to an output buffer. The second
//	** parameter is a pointer to an integer that contains the offset at
//	** which to write into the output buffer. This function copies the
//	** nul-terminated string pointed to by the third parameter, zSignedIdent,
//	** to the specified offset in the buffer and updates *pIdx to refer
//	** to the first byte after the last byte written before returning.
//	**
//	** If the string zSignedIdent consists entirely of alphanumeric
//	** characters, does not begin with a digit and is not an SQL keyword,
//	** then it is copied to the output buffer exactly as it is. Otherwise,
//	** it is quoted using double-quotes.
//	*/
func _identPut(tls *libc.TLS, z uintptr, pIdx uintptr, zSignedIdent uintptr) {
	var i, j, needQuote, v2 int32
	var zIdent uintptr
	_, _, _, _, _ = i, j, needQuote, zIdent, v2
	zIdent = zSignedIdent
	i = **(**int32)(__ccgo_up(pIdx))
	j = 0
	for {
		if !(**(**uint8)(__ccgo_up(zIdent + uintptr(j))) != 0) {
			break
		}
		if !(libc.Int32FromUint8(_sqlite3CtypeMap[**(**uint8)(__ccgo_up(zIdent + uintptr(j)))])&libc.Int32FromInt32(0x06) != 0) && libc.Int32FromUint8(**(**uint8)(__ccgo_up(zIdent + uintptr(j)))) != int32('_') {
			break
		}
		goto _1
	_1:
		;
		j = j + 1
	}
	needQuote = libc.BoolInt32(libc.Int32FromUint8(_sqlite3CtypeMap[**(**uint8)(__ccgo_up(zIdent))])&int32(0x04) != 0 || _sqlite3KeywordCode(tls, zIdent, j) != int32(TK_ID) || libc.Int32FromUint8(**(**uint8)(__ccgo_up(zIdent + uintptr(j)))) != 0 || j == 0)
	if needQuote != 0 {
		v2 = i
		i = i + 1
		**(**int8)(__ccgo_up(z + uintptr(v2))) = int8('"')
	}
	j = 0
	for {
		if !(**(**uint8)(__ccgo_up(zIdent + uintptr(j))) != 0) {
			break
		}
		v2 = i
		i = i + 1
		**(**int8)(__ccgo_up(z + uintptr(v2))) = libc.Int8FromUint8(**(**uint8)(__ccgo_up(zIdent + uintptr(j))))
		if libc.Int32FromUint8(**(**uint8)(__ccgo_up(zIdent + uintptr(j)))) == int32('"') {
			v2 = i
			i = i + 1
			**(**int8)(__ccgo_up(z + uintptr(v2))) = int8('"')
		}
		goto _3
	_3:
		;
		j = j + 1
	}
	if needQuote != 0 {
		v2 = i
		i = i + 1
		**(**int8)(__ccgo_up(z + uintptr(v2))) = int8('"')
	}
	**(**int8)(__ccgo_up(z + uintptr(i))) = 0
	**(**int32)(__ccgo_up(pIdx)) = i
}

// C documentation
//
//	/*
//	** Return true if z[] begins with N hexadecimal digits, and write
//	** a decoding of those digits into *pVal.  Or return false if any
//	** one of the first N characters in z[] is not a hexadecimal digit.
//	*/
func _isNHex(tls *libc.TLS, z uintptr, N int32, pVal uintptr) (r int32) {
	var i int32
	var v Tu32
	_, _ = i, v
	v = uint32(0)
	i = 0
	for {
		if !(i < N) {
			break
		}
		if !(libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(z + uintptr(i))))])&libc.Int32FromInt32(0x08) != 0) {
			return 0
		}
		v = v<<libc.Int32FromInt32(4) + uint32(_sqlite3HexToInt(tls, int32(**(**int8)(__ccgo_up(z + uintptr(i))))))
		goto _1
	_1:
		;
		i = i + 1
	}
	**(**Tu32)(__ccgo_up(pVal)) = v
	return int32(1)
}

// C documentation
//
//	/*
//	** Return the number of bytes of JSON5 whitespace at the beginning of
//	** the input string z[].
//	**
//	** JSON5 whitespace consists of any of the following characters:
//	**
//	**    Unicode  UTF-8         Name
//	**    U+0009   09            horizontal tab
//	**    U+000a   0a            line feed
//	**    U+000b   0b            vertical tab
//	**    U+000c   0c            form feed
//	**    U+000d   0d            carriage return
//	**    U+0020   20            space
//	**    U+00a0   c2 a0         non-breaking space
//	**    U+1680   e1 9a 80      ogham space mark
//	**    U+2000   e2 80 80      en quad
//	**    U+2001   e2 80 81      em quad
//	**    U+2002   e2 80 82      en space
//	**    U+2003   e2 80 83      em space
//	**    U+2004   e2 80 84      three-per-em space
//	**    U+2005   e2 80 85      four-per-em space
//	**    U+2006   e2 80 86      six-per-em space
//	**    U+2007   e2 80 87      figure space
//	**    U+2008   e2 80 88      punctuation space
//	**    U+2009   e2 80 89      thin space
//	**    U+200a   e2 80 8a      hair space
//	**    U+2028   e2 80 a8      line separator
//	**    U+2029   e2 80 a9      paragraph separator
//	**    U+202f   e2 80 af      narrow no-break space (NNBSP)
//	**    U+205f   e2 81 9f      medium mathematical space (MMSP)
//	**    U+3000   e3 80 80      ideographical space
//	**    U+FEFF   ef bb bf      byte order mark
//	**
//	** In addition, comments between '/', '*' and '*', '/' and
//	** from '/', '/' to end-of-line are also considered to be whitespace.
//	*/
func _json5Whitespace(tls *libc.TLS, zIn uintptr) (r int32) {
	var c, v3 int8
	var c1 Tu8
	var j, j1, n int32
	var z uintptr
	_, _, _, _, _, _, _ = c, c1, j, j1, n, z, v3
	n = 0
	z = zIn
	for int32(1) != 0 {
		switch libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(n)))) {
		case int32(0x09):
			fallthrough
		case int32(0x0a):
			fallthrough
		case int32(0x0b):
			fallthrough
		case int32(0x0c):
			fallthrough
		case int32(0x0d):
			fallthrough
		case int32(0x20):
			n = n + 1
		case int32('/'):
			if libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(n+int32(1))))) == int32('*') && libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(n+int32(2))))) != 0 {
				j = n + int32(3)
				for {
					if !(libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(j)))) != int32('/') || libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(j-int32(1))))) != int32('*')) {
						break
					}
					if libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(j)))) == 0 {
						goto whitespace_done
					}
					goto _1
				_1:
					;
					j = j + 1
				}
				n = j + int32(1)
				break
			} else {
				if libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(n+int32(1))))) == int32('/') {
					j1 = n + int32(2)
					for {
						v3 = libc.Int8FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(j1))))
						c = v3
						if !(int32(v3) != 0) {
							break
						}
						if int32(c) == int32('\n') || int32(c) == int32('\r') {
							break
						}
						if int32(0xe2) == libc.Int32FromUint8(libc.Uint8FromInt8(c)) && int32(0x80) == libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(j1+int32(1))))) && (int32(0xa8) == libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(j1+int32(2))))) || int32(0xa9) == libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(j1+int32(2)))))) {
							j1 = j1 + int32(2)
							break
						}
						goto _2
					_2:
						;
						j1 = j1 + 1
					}
					n = j1
					if **(**Tu8)(__ccgo_up(z + uintptr(n))) != 0 {
						n = n + 1
					}
					break
				}
			}
			goto whitespace_done
		case int32(0xc2):
			if libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(n+int32(1))))) == int32(0xa0) {
				n = n + int32(2)
				break
			}
			goto whitespace_done
		case int32(0xe1):
			if libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(n+int32(1))))) == int32(0x9a) && libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(n+int32(2))))) == int32(0x80) {
				n = n + int32(3)
				break
			}
			goto whitespace_done
		case int32(0xe2):
			if libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(n+int32(1))))) == int32(0x80) {
				c1 = **(**Tu8)(__ccgo_up(z + uintptr(n+int32(2))))
				if libc.Int32FromUint8(c1) < int32(0x80) {
					goto whitespace_done
				}
				if libc.Int32FromUint8(c1) <= int32(0x8a) || libc.Int32FromUint8(c1) == int32(0xa8) || libc.Int32FromUint8(c1) == int32(0xa9) || libc.Int32FromUint8(c1) == int32(0xaf) {
					n = n + int32(3)
					break
				}
			} else {
				if libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(n+int32(1))))) == int32(0x81) && libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(n+int32(2))))) == int32(0x9f) {
					n = n + int32(3)
					break
				}
			}
			goto whitespace_done
		case int32(0xe3):
			if libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(n+int32(1))))) == int32(0x80) && libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(n+int32(2))))) == int32(0x80) {
				n = n + int32(3)
				break
			}
			goto whitespace_done
		case int32(0xef):
			if libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(n+int32(1))))) == int32(0xbb) && libc.Int32FromUint8(**(**Tu8)(__ccgo_up(z + uintptr(n+int32(2))))) == int32(0xbf) {
				n = n + int32(3)
				break
			}
			goto whitespace_done
		default:
			goto whitespace_done
		}
	}
	goto whitespace_done
whitespace_done:
	;
	return n
	return r
}

// C documentation
//
//	/* True if the string is all alphanumerics and underscores */
func _jsonAllAlphanum(tls *libc.TLS, z uintptr, n int32) (r int32) {
	var i int32
	_ = i
	i = 0
	for {
		if !(i < n && (libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(z + uintptr(i))))])&int32(0x06) != 0 || int32(**(**int8)(__ccgo_up(z + uintptr(i)))) == int32('_'))) {
			break
		}
		goto _1
	_1:
		;
		i = i + 1
	}
	return libc.BoolInt32(i == n)
}

// C documentation
//
//	/*
//	** Return the number of escaped newlines to be ignored.
//	** An escaped newline is a one of the following byte sequences:
//	**
//	**    0x5c 0x0a
//	**    0x5c 0x0d
//	**    0x5c 0x0d 0x0a
//	**    0x5c 0xe2 0x80 0xa8
//	**    0x5c 0xe2 0x80 0xa9
//	*/
func _jsonBytesToBypass(tls *libc.TLS, z uintptr, n Tu32) (r Tu32) {
	var i Tu32
	_ = i
	i = uint32(0)
	for i+uint32(1) < n {
		if int32(**(**int8)(__ccgo_up(z + uintptr(i)))) != int32('\\') {
			return i
		}
		if int32(**(**int8)(__ccgo_up(z + uintptr(i+uint32(1))))) == int32('\n') {
			i = i + uint32(2)
			continue
		}
		if int32(**(**int8)(__ccgo_up(z + uintptr(i+uint32(1))))) == int32('\r') {
			if i+uint32(2) < n && int32(**(**int8)(__ccgo_up(z + uintptr(i+uint32(2))))) == int32('\n') {
				i = i + uint32(3)
			} else {
				i = i + uint32(2)
			}
			continue
		}
		if int32(0xe2) == libc.Int32FromUint8(libc.Uint8FromInt8(**(**int8)(__ccgo_up(z + uintptr(i+uint32(1)))))) && i+uint32(3) < n && int32(0x80) == libc.Int32FromUint8(libc.Uint8FromInt8(**(**int8)(__ccgo_up(z + uintptr(i+uint32(2)))))) && (int32(0xa8) == libc.Int32FromUint8(libc.Uint8FromInt8(**(**int8)(__ccgo_up(z + uintptr(i+uint32(3)))))) || int32(0xa9) == libc.Int32FromUint8(libc.Uint8FromInt8(**(**int8)(__ccgo_up(z + uintptr(i+uint32(3))))))) {
			i = i + uint32(4)
			continue
		}
		break
	}
	return i
}

// C documentation
//
//	/*
//	** Convert a 4-byte hex string into an integer
//	*/
func _jsonHexToInt4(tls *libc.TLS, z uintptr) (r Tu32) {
	var v Tu32
	_ = v
	v = libc.Uint32FromInt32(libc.Int32FromUint8(_jsonHexToInt(tls, int32(**(**int8)(__ccgo_up(z)))))<<int32(12) + libc.Int32FromUint8(_jsonHexToInt(tls, int32(**(**int8)(__ccgo_up(z + 1)))))<<int32(8) + libc.Int32FromUint8(_jsonHexToInt(tls, int32(**(**int8)(__ccgo_up(z + 2)))))<<int32(4) + libc.Int32FromUint8(_jsonHexToInt(tls, int32(**(**int8)(__ccgo_up(z + 3))))))
	return v
}

// C documentation
//
//	/*
//	** Return true if z[] begins with 2 (or more) hexadecimal digits
//	*/
func _jsonIs2Hex(tls *libc.TLS, z uintptr) (r int32) {
	return libc.BoolInt32(libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(z)))])&int32(0x08) != 0 && libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(z + 1)))])&int32(0x08) != 0)
}

// C documentation
//
//	/*
//	** Compare two object labels.  Return 1 if they are equal and
//	** 0 if they differ.
//	**
//	** In this version, we know that one or the other or both of the
//	** two comparands contains an escape sequence.
//	*/
func _jsonLabelCompareEscaped(tls *libc.TLS, zLeft uintptr, nLeft Tu32, rawLeft int32, zRight uintptr, nRight Tu32, rawRight int32) (r int32) {
	bp := tls.Alloc(16)
	defer tls.Free(16)
	var n, n1 Tu32
	var sz, sz1 int32
	var _ /* cLeft at bp+0 */ Tu32
	var _ /* cRight at bp+4 */ Tu32
	_, _, _, _ = n, n1, sz, sz1
	for int32(1) != 0 {
		if nLeft == uint32(0) {
			**(**Tu32)(__ccgo_up(bp)) = uint32(0)
		} else {
			if rawLeft != 0 || int32(**(**int8)(__ccgo_up(zLeft))) != int32('\\') {
				**(**Tu32)(__ccgo_up(bp)) = uint32(**(**Tu8)(__ccgo_up(zLeft)))
				if **(**Tu32)(__ccgo_up(bp)) >= uint32(0xc0) {
					sz = _sqlite3Utf8ReadLimited(tls, zLeft, libc.Int32FromUint32(nLeft), bp)
					zLeft = zLeft + uintptr(sz)
					nLeft = nLeft - libc.Uint32FromInt32(sz)
				} else {
					zLeft = zLeft + 1
					nLeft = nLeft - 1
				}
			} else {
				n = _jsonUnescapeOneChar(tls, zLeft, nLeft, bp)
				zLeft = zLeft + uintptr(n)
				nLeft = nLeft - n
			}
		}
		if nRight == uint32(0) {
			**(**Tu32)(__ccgo_up(bp + 4)) = uint32(0)
		} else {
			if rawRight != 0 || int32(**(**int8)(__ccgo_up(zRight))) != int32('\\') {
				**(**Tu32)(__ccgo_up(bp + 4)) = uint32(**(**Tu8)(__ccgo_up(zRight)))
				if **(**Tu32)(__ccgo_up(bp + 4)) >= uint32(0xc0) {
					sz1 = _sqlite3Utf8ReadLimited(tls, zRight, libc.Int32FromUint32(nRight), bp+4)
					zRight = zRight + uintptr(sz1)
					nRight = nRight - libc.Uint32FromInt32(sz1)
				} else {
					zRight = zRight + 1
					nRight = nRight - 1
				}
			} else {
				n1 = _jsonUnescapeOneChar(tls, zRight, nRight, bp+4)
				zRight = zRight + uintptr(n1)
				nRight = nRight - n1
			}
		}
		if **(**Tu32)(__ccgo_up(bp)) != **(**Tu32)(__ccgo_up(bp + 4)) {
			return 0
		}
		if **(**Tu32)(__ccgo_up(bp)) == uint32(0) {
			return int32(1)
		}
	}
	return r
}

// C documentation
//
//	/* Make sure there is a zero terminator on p->zBuf[]
//	**
//	** Return true on success.  Return false if an OOM prevents this
//	** from happening.
//	*/
func _jsonStringTerminate(tls *libc.TLS, p uintptr) (r int32) {
	_jsonAppendChar(tls, p, 0)
	_jsonStringTrimOneChar(tls, p)
	return libc.BoolInt32(libc.Int32FromUint8((*TJsonString)(unsafe.Pointer(p)).FeErr) == 0)
}

// C documentation
//
//	/*
//	** Input z[0..n] defines JSON escape sequence including the leading '\\'.
//	** Decode that escape sequence into a single character.  Write that
//	** character into *piOut.  Return the number of bytes in the escape sequence.
//	**
//	** If there is a syntax error of some kind (for example too few characters
//	** after the '\\' to complete the encoding) then *piOut is set to
//	** JSON_INVALID_CHAR.
//	*/
func _jsonUnescapeOneChar(tls *libc.TLS, z uintptr, n Tu32, piOut uintptr) (r Tu32) {
	var nSkip, v, vlo, v1 Tu32
	var sz, v3 int32
	var v2 bool
	_, _, _, _, _, _, _ = nSkip, sz, v, vlo, v1, v2, v3
	if n < uint32(2) {
		**(**Tu32)(__ccgo_up(piOut)) = uint32(JSON_INVALID_CHAR)
		return n
	}
	switch libc.Int32FromUint8(libc.Uint8FromInt8(**(**int8)(__ccgo_up(z + 1)))) {
	case int32('u'):
		if n < uint32(6) {
			**(**Tu32)(__ccgo_up(piOut)) = uint32(JSON_INVALID_CHAR)
			return n
		}
		v = _jsonHexToInt4(tls, z+2)
		if v2 = v&uint32(0xfc00) == uint32(0xd800) && n >= uint32(12) && int32(**(**int8)(__ccgo_up(z + 6))) == int32('\\') && int32(**(**int8)(__ccgo_up(z + 7))) == int32('u'); v2 {
			v1 = _jsonHexToInt4(tls, z+8)
			vlo = v1
		}
		if v2 && v1&uint32(0xfc00) == uint32(0xdc00) {
			**(**Tu32)(__ccgo_up(piOut)) = v&uint32(0x3ff)<<int32(10) + vlo&uint32(0x3ff) + uint32(0x10000)
			return uint32(12)
		} else {
			**(**Tu32)(__ccgo_up(piOut)) = v
			return uint32(6)
		}
		fallthrough
	case int32('b'):
		**(**Tu32)(__ccgo_up(piOut)) = uint32('\b')
		return uint32(2)
	case int32('f'):
		**(**Tu32)(__ccgo_up(piOut)) = uint32('\f')
		return uint32(2)
	case int32('n'):
		**(**Tu32)(__ccgo_up(piOut)) = uint32('\n')
		return uint32(2)
	case int32('r'):
		**(**Tu32)(__ccgo_up(piOut)) = uint32('\r')
		return uint32(2)
	case int32('t'):
		**(**Tu32)(__ccgo_up(piOut)) = uint32('\t')
		return uint32(2)
	case int32('v'):
		**(**Tu32)(__ccgo_up(piOut)) = uint32('\v')
		return uint32(2)
	case int32('0'):
		/* JSON5 requires that the \0 escape not be followed by a digit.
		 ** But SQLite did not enforce this restriction in versions 3.42.0
		 ** through 3.49.2.  That was a bug.  But some applications might have
		 ** come to depend on that bug.  Use the SQLITE_BUG_COMPATIBLE_20250510
		 ** option to restore the old buggy behavior. */
		/* Correct behavior */
		if n > uint32(2) && libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(z + 2)))])&int32(0x04) != 0 {
			v3 = int32(JSON_INVALID_CHAR)
		} else {
			v3 = 0
		}
		**(**Tu32)(__ccgo_up(piOut)) = libc.Uint32FromInt32(v3)
		return uint32(2)
	case int32('\''):
		fallthrough
	case int32('"'):
		fallthrough
	case int32('/'):
		fallthrough
	case int32('\\'):
		**(**Tu32)(__ccgo_up(piOut)) = libc.Uint32FromInt8(**(**int8)(__ccgo_up(z + 1)))
		return uint32(2)
	case int32('x'):
		if n < uint32(4) {
			**(**Tu32)(__ccgo_up(piOut)) = uint32(JSON_INVALID_CHAR)
			return n
		}
		**(**Tu32)(__ccgo_up(piOut)) = libc.Uint32FromInt32(libc.Int32FromUint8(_jsonHexToInt(tls, int32(**(**int8)(__ccgo_up(z + 2)))))<<int32(4) | libc.Int32FromUint8(_jsonHexToInt(tls, int32(**(**int8)(__ccgo_up(z + 3))))))
		return uint32(4)
	case int32(0xe2):
		fallthrough
	case int32('\r'):
		fallthrough
	case int32('\n'):
		nSkip = _jsonBytesToBypass(tls, z, n)
		if nSkip == uint32(0) {
			**(**Tu32)(__ccgo_up(piOut)) = uint32(JSON_INVALID_CHAR)
			return n
		} else {
			if nSkip == n {
				**(**Tu32)(__ccgo_up(piOut)) = uint32(0)
				return n
			} else {
				if int32(**(**int8)(__ccgo_up(z + uintptr(nSkip)))) == int32('\\') {
					return nSkip + _jsonUnescapeOneChar(tls, z+uintptr(nSkip), n-nSkip, piOut)
				} else {
					sz = _sqlite3Utf8ReadLimited(tls, z+uintptr(nSkip), libc.Int32FromUint32(n-nSkip), piOut)
					return nSkip + libc.Uint32FromInt32(sz)
				}
			}
		}
		fallthrough
	default:
		**(**Tu32)(__ccgo_up(piOut)) = uint32(JSON_INVALID_CHAR)
		return uint32(2)
	}
	return r
}

// C documentation
//
//	/* Hash table decoded:
//	**   0: INSERT
//	**   1: IS
//	**   2: ROLLBACK TRIGGER
//	**   3: IMMEDIATE
//	**   4: PARTITION
//	**   5: TEMP
//	**   6:
//	**   7:
//	**   8: VALUES WITHOUT
//	**   9:
//	**  10: MATCH
//	**  11: NOTHING
//	**  12:
//	**  13: OF
//	**  14: TIES IGNORE
//	**  15: PLAN
//	**  16: INSTEAD INDEXED
//	**  17:
//	**  18: TRANSACTION RIGHT
//	**  19: WHEN
//	**  20: SET HAVING
//	**  21: MATERIALIZED IF
//	**  22: ROWS
//	**  23: SELECT
//	**  24:
//	**  25:
//	**  26: VACUUM SAVEPOINT
//	**  27:
//	**  28: LIKE UNION VIRTUAL REFERENCES
//	**  29: RESTRICT
//	**  30:
//	**  31: THEN REGEXP
//	**  32: TO
//	**  33:
//	**  34: BEFORE
//	**  35:
//	**  36:
//	**  37: FOLLOWING COLLATE CASCADE
//	**  38: CREATE
//	**  39:
//	**  40: CASE REINDEX
//	**  41: EACH
//	**  42:
//	**  43: QUERY
//	**  44: AND ADD
//	**  45: PRIMARY ANALYZE
//	**  46:
//	**  47: ROW ASC DETACH
//	**  48: CURRENT_TIME CURRENT_DATE
//	**  49:
//	**  50:
//	**  51: EXCLUSIVE TEMPORARY
//	**  52:
//	**  53: DEFERRED
//	**  54: DEFERRABLE
//	**  55:
//	**  56: DATABASE
//	**  57:
//	**  58: DELETE VIEW GENERATED
//	**  59: ATTACH
//	**  60: END
//	**  61: EXCLUDE
//	**  62: ESCAPE DESC
//	**  63: GLOB
//	**  64: WINDOW ELSE
//	**  65: COLUMN
//	**  66: FIRST
//	**  67:
//	**  68: GROUPS ALL
//	**  69: DISTINCT DROP KEY
//	**  70: BETWEEN
//	**  71: INITIALLY
//	**  72: BEGIN
//	**  73: FILTER CHECK ACTION
//	**  74: GROUP INDEX
//	**  75:
//	**  76: EXISTS DEFAULT
//	**  77:
//	**  78: FOR CURRENT_TIMESTAMP
//	**  79: EXCEPT
//	**  80:
//	**  81: CROSS
//	**  82:
//	**  83:
//	**  84:
//	**  85: CAST
//	**  86: FOREIGN AUTOINCREMENT
//	**  87: COMMIT
//	**  88: CURRENT AFTER ALTER
//	**  89: FULL FAIL CONFLICT
//	**  90: EXPLAIN
//	**  91: CONSTRAINT
//	**  92: FROM ALWAYS
//	**  93:
//	**  94: ABORT
//	**  95:
//	**  96: AS DO
//	**  97: REPLACE WITH RELEASE
//	**  98: BY RENAME
//	**  99: RANGE RAISE
//	** 100: OTHERS
//	** 101: USING NULLS
//	** 102: PRAGMA
//	** 103: JOIN ISNULL OFFSET
//	** 104: NOT
//	** 105: OR LAST LEFT
//	** 106: LIMIT
//	** 107:
//	** 108:
//	** 109: IN
//	** 110: INTO
//	** 111: OVER RECURSIVE
//	** 112: ORDER OUTER
//	** 113:
//	** 114: INTERSECT UNBOUNDED
//	** 115:
//	** 116:
//	** 117: RETURNING ON
//	** 118:
//	** 119: WHERE
//	** 120: NO INNER
//	** 121: NULL
//	** 122:
//	** 123: TABLE
//	** 124: NATURAL NOTNULL
//	** 125: PRECEDING
//	** 126: UPDATE UNIQUE
//	*/
//	/* Check to see if z[0..n-1] is a keyword. If it is, write the
//	** parser symbol code for that keyword into *pType.  Always
//	** return the integer n (the length of the token). */
func _keywordCode(tls *libc.TLS, z uintptr, n Ti64, pType uintptr) (r Ti64) {
	var i, j Ti64
	var zKW uintptr
	_, _, _ = i, j, zKW
	i = (int64(libc.Int32FromUint8(_sqlite3UpperToLower[libc.Uint8FromInt8(**(**int8)(__ccgo_up(z)))])*int32(4)^libc.Int32FromUint8(_sqlite3UpperToLower[libc.Uint8FromInt8(**(**int8)(__ccgo_up(z + uintptr(n-int64(1)))))])*int32(3)) ^ n*int64(1)) % int64(127)
	i = int64(libc.Int32FromUint8(_aKWHash[i]))
	for {
		if !(i > 0) {
			break
		}
		if libc.Int64FromUint8(_aKWLen[i]) != n {
			goto _1
		}
		zKW = uintptr(unsafe.Pointer(&_zKWText)) + uintptr(_aKWOffset[i])
		if int32(**(**int8)(__ccgo_up(z))) & ^libc.Int32FromInt32(0x20) != int32(**(**int8)(__ccgo_up(zKW))) {
			goto _1
		}
		if int32(**(**int8)(__ccgo_up(z + 1))) & ^libc.Int32FromInt32(0x20) != int32(**(**int8)(__ccgo_up(zKW + 1))) {
			goto _1
		}
		j = int64(2)
		for j < n && int32(**(**int8)(__ccgo_up(z + uintptr(j)))) & ^libc.Int32FromInt32(0x20) == int32(**(**int8)(__ccgo_up(zKW + uintptr(j)))) {
			j = j + 1
		}
		if j < n {
			goto _1
		}
		/* REINDEX */
		/* INDEXED */
		/* INDEX */
		/* DESC */
		/* ESCAPE */
		/* EACH */
		/* CHECK */
		/* KEY */
		/* BEFORE */
		/* FOREIGN */
		/* FOR */
		/* IGNORE */
		/* REGEXP */
		/* EXPLAIN */
		/* INSTEAD */
		/* ADD */
		/* DATABASE */
		/* AS */
		/* SELECT */
		/* TABLE */
		/* LEFT */
		/* THEN */
		/* END */
		/* DEFERRABLE */
		/* ELSE */
		/* EXCLUDE */
		/* DELETE */
		/* TEMPORARY */
		/* TEMP */
		/* OR */
		/* ISNULL */
		/* NULLS */
		/* SAVEPOINT */
		/* INTERSECT */
		/* TIES */
		/* NOTNULL */
		/* NOT */
		/* NO */
		/* NULL */
		/* LIKE */
		/* EXCEPT */
		/* TRANSACTION */
		/* ACTION */
		/* ON */
		/* NATURAL */
		/* ALTER */
		/* RAISE */
		/* EXCLUSIVE */
		/* EXISTS */
		/* CONSTRAINT */
		/* INTO */
		/* OFFSET */
		/* OF */
		/* SET */
		/* TRIGGER */
		/* RANGE */
		/* GENERATED */
		/* DETACH */
		/* HAVING */
		/* GLOB */
		/* BEGIN */
		/* INNER */
		/* REFERENCES */
		/* UNIQUE */
		/* QUERY */
		/* WITHOUT */
		/* WITH */
		/* OUTER */
		/* RELEASE */
		/* ATTACH */
		/* BETWEEN */
		/* NOTHING */
		/* GROUPS */
		/* GROUP */
		/* CASCADE */
		/* ASC */
		/* DEFAULT */
		/* CASE */
		/* COLLATE */
		/* CREATE */
		/* CURRENT_DATE */
		/* IMMEDIATE */
		/* JOIN */
		/* INSERT */
		/* MATCH */
		/* PLAN */
		/* ANALYZE */
		/* PRAGMA */
		/* MATERIALIZED */
		/* DEFERRED */
		/* DISTINCT */
		/* IS */
		/* UPDATE */
		/* VALUES */
		/* VIRTUAL */
		/* ALWAYS */
		/* WHEN */
		/* WHERE */
		/* RECURSIVE */
		/* ABORT */
		/* AFTER */
		/* RENAME */
		/* AND */
		/* DROP */
		/* PARTITION */
		/* AUTOINCREMENT */
		/* TO */
		/* IN */
		/* CAST */
		/* COLUMN */
		/* COMMIT */
		/* CONFLICT */
		/* CROSS */
		/* CURRENT_TIMESTAMP */
		/* CURRENT_TIME */
		/* CURRENT */
		/* PRECEDING */
		/* FAIL */
		/* LAST */
		/* FILTER */
		/* REPLACE */
		/* FIRST */
		/* FOLLOWING */
		/* FROM */
		/* FULL */
		/* LIMIT */
		/* IF */
		/* ORDER */
		/* RESTRICT */
		/* OTHERS */
		/* OVER */
		/* RETURNING */
		/* RIGHT */
		/* ROLLBACK */
		/* ROWS */
		/* ROW */
		/* UNBOUNDED */
		/* UNION */
		/* USING */
		/* VACUUM */
		/* VIEW */
		/* WINDOW */
		/* DO */
		/* BY */
		/* INITIALLY */
		/* ALL */
		/* PRIMARY */
		**(**int32)(__ccgo_up(pType)) = libc.Int32FromUint8(_aKWCode[i])
		break
		goto _1
	_1:
		;
		i = libc.Int64FromUint8(_aKWNext[i])
	}
	return n
}

func _lowerFunc(tls *libc.TLS, context uintptr, argc int32, argv uintptr) {
	var i, n int32
	var z1, z2 uintptr
	_, _, _, _ = i, n, z1, z2
	_ = argc
	z2 = Xsqlite3_value_text(tls, **(**uintptr)(__ccgo_up(argv)))
	n = Xsqlite3_value_bytes(tls, **(**uintptr)(__ccgo_up(argv)))
	/* Verify that the call to _bytes() does not invalidate the _text() pointer */
	if z2 != 0 {
		z1 = _contextMalloc(tls, context, int64(n)+int64(1))
		if z1 != 0 {
			i = 0
			for {
				if !(i < n) {
					break
				}
				**(**int8)(__ccgo_up(z1 + uintptr(i))) = libc.Int8FromUint8(_sqlite3UpperToLower[libc.Uint8FromInt8(**(**int8)(__ccgo_up(z2 + uintptr(i))))])
				goto _1
			_1:
				;
				i = i + 1
			}
			Xsqlite3_result_text(tls, context, z1, n, __ccgo_fp(Xsqlite3_free))
		}
	}
}

/*
** Some functions like COALESCE() and IFNULL() and UNLIKELY() are implemented
** as VDBE code so that unused argument values do not have to be computed.
** However, we still need some kind of function implementation for this
** routines in the function table.  The noopFunc macro provides this.
** noopFunc will never be called so it doesn't matter what the implementation
** is.  We might as well use the "version()" function as a substitute.
 */

// C documentation
//
//	/*
//	** Write an entry into the pointer map.
//	**
//	** This routine updates the pointer map entry for page number 'key'
//	** so that it maps to type 'eType' and parent page number 'pgno'.
//	**
//	** If *pRC is initially non-zero (non-SQLITE_OK) then this routine is
//	** a no-op.  If an error occurs, the appropriate error code is written
//	** into *pRC.
//	*/
func _ptrmapPut(tls *libc.TLS, pBt uintptr, key TPgno, eType Tu8, parent TPgno, pRC uintptr) {
	bp := tls.Alloc(16)
	defer tls.Free(16)
	var iPtrmap TPgno
	var offset, rc, v1 int32
	var pPtrmap uintptr
	var _ /* pDbPage at bp+0 */ uintptr
	_, _, _, _, _ = iPtrmap, offset, pPtrmap, rc, v1 /* Return code from subfunctions */
	if **(**int32)(__ccgo_up(pRC)) != 0 {
		return
	}
	/* The super-journal page number must never be used as a pointer map page */
	if key == uint32(0) {
		**(**int32)(__ccgo_up(pRC)) = _sqlite3CorruptError(tls, int32(74301))
		return
	}
	iPtrmap = _ptrmapPageno(tls, pBt, key)
	rc = _sqlite3PagerGet(tls, (*TBtShared)(unsafe.Pointer(pBt)).FpPager, iPtrmap, bp, 0)
	if rc != SQLITE_OK {
		**(**int32)(__ccgo_up(pRC)) = rc
		return
	}
	if int32(**(**int8)(__ccgo_up(_sqlite3PagerGetExtra(tls, **(**uintptr)(__ccgo_up(bp)))))) != 0 {
		/* The first byte of the extra data is the MemPage.isInit byte.
		 ** If that byte is set, it means this page is also being used
		 ** as a btree page. */
		**(**int32)(__ccgo_up(pRC)) = _sqlite3CorruptError(tls, int32(74314))
		goto ptrmap_exit
	}
	offset = libc.Int32FromUint32(libc.Uint32FromInt32(5) * (key - iPtrmap - libc.Uint32FromInt32(1)))
	if offset < 0 {
		**(**int32)(__ccgo_up(pRC)) = _sqlite3CorruptError(tls, int32(74319))
		goto ptrmap_exit
	}
	pPtrmap = _sqlite3PagerGetData(tls, **(**uintptr)(__ccgo_up(bp)))
	if libc.Int32FromUint8(eType) != libc.Int32FromUint8(**(**Tu8)(__ccgo_up(pPtrmap + uintptr(offset)))) || _sqlite3Get4byte(tls, pPtrmap+uintptr(offset+int32(1))) != parent {
		v1 = _sqlite3PagerWrite(tls, **(**uintptr)(__ccgo_up(bp)))
		rc = v1
		**(**int32)(__ccgo_up(pRC)) = v1
		if rc == SQLITE_OK {
			**(**Tu8)(__ccgo_up(pPtrmap + uintptr(offset))) = eType
			_sqlite3Put4byte(tls, pPtrmap+uintptr(offset+int32(1)), parent)
		}
	}
	goto ptrmap_exit
ptrmap_exit:
	;
	_sqlite3PagerUnref(tls, **(**uintptr)(__ccgo_up(bp)))
}

// C documentation
//
//	/*
//	** Scan the column type name zType (length nType) and return the
//	** associated affinity type.
//	**
//	** This routine does a case-independent search of zType for the
//	** substrings in the following table. If one of the substrings is
//	** found, the corresponding affinity is returned. If zType contains
//	** more than one of the substrings, entries toward the top of
//	** the table take priority. For example, if zType is 'BLOBINT',
//	** SQLITE_AFF_INTEGER is returned.
//	**
//	** Substring     | Affinity
//	** --------------------------------
//	** 'INT'         | SQLITE_AFF_INTEGER
//	** 'CHAR'        | SQLITE_AFF_TEXT
//	** 'CLOB'        | SQLITE_AFF_TEXT
//	** 'TEXT'        | SQLITE_AFF_TEXT
//	** 'BLOB'        | SQLITE_AFF_BLOB
//	** 'REAL'        | SQLITE_AFF_REAL
//	** 'FLOA'        | SQLITE_AFF_REAL
//	** 'DOUB'        | SQLITE_AFF_REAL
//	**
//	** If none of the substrings in the above table are found,
//	** SQLITE_AFF_NUMERIC is returned.
//	*/
func _sqlite3AffinityType(tls *libc.TLS, zIn uintptr, pCol uintptr) (r int8) {
	bp := tls.Alloc(16)
	defer tls.Free(16)
	var aff int8
	var h Tu32
	var x Tu8
	var zChar uintptr
	var _ /* v at bp+0 */ int32
	_, _, _, _ = aff, h, x, zChar
	h = uint32(0)
	aff = int8(SQLITE_AFF_NUMERIC)
	zChar = uintptr(0)
	for **(**int8)(__ccgo_up(zIn)) != 0 {
		x = **(**Tu8)(__ccgo_up(zIn))
		h = h<<libc.Int32FromInt32(8) + uint32(_sqlite3UpperToLower[x])
		zIn = zIn + 1
		if h == libc.Uint32FromInt32(libc.Int32FromUint8('c')<<libc.Int32FromInt32(24)+libc.Int32FromUint8('h')<<libc.Int32FromInt32(16)+libc.Int32FromUint8('a')<<libc.Int32FromInt32(8)+libc.Int32FromUint8('r')) { /* CHAR */
			aff = int8(SQLITE_AFF_TEXT)
			zChar = zIn
		} else {
			if h == libc.Uint32FromInt32(libc.Int32FromUint8('c')<<libc.Int32FromInt32(24)+libc.Int32FromUint8('l')<<libc.Int32FromInt32(16)+libc.Int32FromUint8('o')<<libc.Int32FromInt32(8)+libc.Int32FromUint8('b')) { /* CLOB */
				aff = int8(SQLITE_AFF_TEXT)
			} else {
				if h == libc.Uint32FromInt32(libc.Int32FromUint8('t')<<libc.Int32FromInt32(24)+libc.Int32FromUint8('e')<<libc.Int32FromInt32(16)+libc.Int32FromUint8('x')<<libc.Int32FromInt32(8)+libc.Int32FromUint8('t')) { /* TEXT */
					aff = int8(SQLITE_AFF_TEXT)
				} else {
					if h == libc.Uint32FromInt32(libc.Int32FromUint8('b')<<libc.Int32FromInt32(24)+libc.Int32FromUint8('l')<<libc.Int32FromInt32(16)+libc.Int32FromUint8('o')<<libc.Int32FromInt32(8)+libc.Int32FromUint8('b')) && (int32(aff) == int32(SQLITE_AFF_NUMERIC) || int32(aff) == int32(SQLITE_AFF_REAL)) {
						aff = int8(SQLITE_AFF_BLOB)
						if int32(**(**int8)(__ccgo_up(zIn))) == int32('(') {
							zChar = zIn
						}
					} else {
						if h == libc.Uint32FromInt32(libc.Int32FromUint8('r')<<libc.Int32FromInt32(24)+libc.Int32FromUint8('e')<<libc.Int32FromInt32(16)+libc.Int32FromUint8('a')<<libc.Int32FromInt32(8)+libc.Int32FromUint8('l')) && int32(aff) == int32(SQLITE_AFF_NUMERIC) {
							aff = int8(SQLITE_AFF_REAL)
						} else {
							if h == libc.Uint32FromInt32(libc.Int32FromUint8('f')<<libc.Int32FromInt32(24)+libc.Int32FromUint8('l')<<libc.Int32FromInt32(16)+libc.Int32FromUint8('o')<<libc.Int32FromInt32(8)+libc.Int32FromUint8('a')) && int32(aff) == int32(SQLITE_AFF_NUMERIC) {
								aff = int8(SQLITE_AFF_REAL)
							} else {
								if h == libc.Uint32FromInt32(libc.Int32FromUint8('d')<<libc.Int32FromInt32(24)+libc.Int32FromUint8('o')<<libc.Int32FromInt32(16)+libc.Int32FromUint8('u')<<libc.Int32FromInt32(8)+libc.Int32FromUint8('b')) && int32(aff) == int32(SQLITE_AFF_NUMERIC) {
									aff = int8(SQLITE_AFF_REAL)
								} else {
									if h&uint32(0x00FFFFFF) == libc.Uint32FromInt32(libc.Int32FromUint8('i')<<libc.Int32FromInt32(16)+libc.Int32FromUint8('n')<<libc.Int32FromInt32(8)+libc.Int32FromUint8('t')) { /* INT */
										aff = int8(SQLITE_AFF_INTEGER)
										break
									}
								}
							}
						}
					}
				}
			}
		}
	}
	/* If pCol is not NULL, store an estimate of the field size.  The
	 ** estimate is scaled so that the size of an integer is 1.  */
	if pCol != 0 {
		**(**int32)(__ccgo_up(bp)) = 0 /* default size is approx 4 bytes */
		if int32(aff) < int32(SQLITE_AFF_NUMERIC) {
			if zChar != 0 {
				for **(**int8)(__ccgo_up(zChar)) != 0 {
					if libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(zChar)))])&int32(0x04) != 0 {
						/* BLOB(k), VARCHAR(k), CHAR(k) -> r=(k/4+1) */
						_sqlite3GetInt32(tls, zChar, bp)
						break
					}
					zChar = zChar + 1
				}
			} else {
				**(**int32)(__ccgo_up(bp)) = int32(16) /* BLOB, TEXT, CLOB -> r=5  (approx 20 bytes)*/
			}
		}
		**(**int32)(__ccgo_up(bp)) = **(**int32)(__ccgo_up(bp))/int32(4) + int32(1)
		if **(**int32)(__ccgo_up(bp)) > int32(255) {
			**(**int32)(__ccgo_up(bp)) = int32(255)
		}
		(*TColumn)(unsafe.Pointer(pCol)).FszEst = libc.Uint8FromInt32(**(**int32)(__ccgo_up(bp)))
	}
	return aff
}

// C documentation
//
//	/*
//	** Write a single UTF8 character whose value is v into the
//	** buffer starting at zOut.  zOut must be sized to hold at
//	** least four bytes.  Return the number of bytes needed
//	** to encode the new character.
//	*/
func _sqlite3AppendOneUtf8Character(tls *libc.TLS, zOut uintptr, v Tu32) (r int32) {
	if v < uint32(0x00080) {
		**(**int8)(__ccgo_up(zOut)) = libc.Int8FromUint8(uint8(v & libc.Uint32FromInt32(0xff)))
		return int32(1)
	}
	if v < uint32(0x00800) {
		**(**int8)(__ccgo_up(zOut)) = int8(int32(0xc0) + libc.Int32FromUint8(uint8(v>>libc.Int32FromInt32(6)&libc.Uint32FromInt32(0x1f))))
		**(**int8)(__ccgo_up(zOut + 1)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(v&libc.Uint32FromInt32(0x3f))))
		return int32(2)
	}
	if v < uint32(0x10000) {
		**(**int8)(__ccgo_up(zOut)) = int8(int32(0xe0) + libc.Int32FromUint8(uint8(v>>libc.Int32FromInt32(12)&libc.Uint32FromInt32(0x0f))))
		**(**int8)(__ccgo_up(zOut + 1)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(v>>libc.Int32FromInt32(6)&libc.Uint32FromInt32(0x3f))))
		**(**int8)(__ccgo_up(zOut + 2)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(v&libc.Uint32FromInt32(0x3f))))
		return int32(3)
	}
	**(**int8)(__ccgo_up(zOut)) = int8(int32(0xf0) + libc.Int32FromUint8(uint8(v>>libc.Int32FromInt32(18)&libc.Uint32FromInt32(0x07))))
	**(**int8)(__ccgo_up(zOut + 1)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(v>>libc.Int32FromInt32(12)&libc.Uint32FromInt32(0x3f))))
	**(**int8)(__ccgo_up(zOut + 2)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(v>>libc.Int32FromInt32(6)&libc.Uint32FromInt32(0x3f))))
	**(**int8)(__ccgo_up(zOut + 3)) = int8(int32(0x80) + libc.Int32FromUint8(uint8(v&libc.Uint32FromInt32(0x3f))))
	return int32(4)
}

// C documentation
//
//	/*
//	** Convert zNum to a 64-bit signed integer.  zNum must be decimal. This
//	** routine does *not* accept hexadecimal notation.
//	**
//	** Returns:
//	**
//	**    -1    Not even a prefix of the input text looks like an integer
//	**     0    Successful transformation.  Fits in a 64-bit signed integer.
//	**     1    Excess non-space text after the integer value
//	**     2    Integer too large for a 64-bit signed integer or is malformed
//	**     3    Special case of 9223372036854775808
//	**
//	** length is the number of bytes in the string (bytes, not characters).
//	** The string is not necessarily zero-terminated.  The encoding is
//	** given by enc.
//	*/
func _sqlite3Atoi64(tls *libc.TLS, zNum uintptr, pNum uintptr, length int32, enc Tu8) (r int32) {
	var c, v3 uint32
	var i, incr, j, jj, neg, nonNum, rc, v6 int32
	var u Tu64
	var zEnd, zStart uintptr
	var v4 bool
	var v5 int64
	_, _, _, _, _, _, _, _, _, _, _, _, _, _, _ = c, i, incr, j, jj, neg, nonNum, rc, u, zEnd, zStart, v3, v4, v5, v6
	u = uint64(0)
	neg = 0
	c = uint32(0)
	nonNum = 0
	zEnd = zNum + uintptr(length)
	if libc.Int32FromUint8(enc) == int32(SQLITE_UTF8) {
		incr = int32(1)
	} else {
		incr = int32(2)
		length = length & ^libc.Int32FromInt32(1)
		i = int32(3) - libc.Int32FromUint8(enc)
		for {
			if !(i < length && int32(**(**int8)(__ccgo_up(zNum + uintptr(i)))) == 0) {
				break
			}
			goto _1
		_1:
			;
			i = i + int32(2)
		}
		nonNum = libc.BoolInt32(i < length)
		zEnd = zNum + uintptr(i^int32(1))
		zNum = zNum + uintptr(libc.Int32FromUint8(enc)&libc.Int32FromInt32(1))
	}
	for zNum < zEnd && libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(zNum)))])&int32(0x01) != 0 {
		zNum = zNum + uintptr(incr)
	}
	if zNum < zEnd {
		if int32(**(**int8)(__ccgo_up(zNum))) == int32('-') {
			neg = int32(1)
			zNum = zNum + uintptr(incr)
		} else {
			if int32(**(**int8)(__ccgo_up(zNum))) == int32('+') {
				zNum = zNum + uintptr(incr)
			}
		}
	}
	zStart = zNum
	for zNum < zEnd && int32(**(**int8)(__ccgo_up(zNum))) == int32('0') {
		zNum = zNum + uintptr(incr)
	} /* Skip leading zeros. */
	i = 0
	for {
		if v4 = zNum+uintptr(i) < zEnd; v4 {
			v3 = libc.Uint32FromInt8(**(**int8)(__ccgo_up(zNum + uintptr(i)))) - libc.Uint32FromUint8('0')
			c = v3
		}
		if !(v4 && v3 <= uint32(9)) {
			break
		}
		u = u*uint64(10) + uint64(c)
		goto _2
	_2:
		;
		i = i + incr
	}
	if u > libc.Uint64FromInt64(libc.Int64FromUint32(0xffffffff)|libc.Int64FromInt32(0x7fffffff)<<libc.Int32FromInt32(32)) {
		/* This test and assignment is needed only to suppress UB warnings
		 ** from clang and -fsanitize=undefined.  This test and assignment make
		 ** the code a little larger and slower, and no harm comes from omitting
		 ** them, but we must appease the undefined-behavior pharisees. */
		if neg != 0 {
			v5 = int64(-libc.Int32FromInt32(1)) - (libc.Int64FromUint32(0xffffffff) | libc.Int64FromInt32(0x7fffffff)<<libc.Int32FromInt32(32))
		} else {
			v5 = libc.Int64FromUint32(0xffffffff) | libc.Int64FromInt32(0x7fffffff)<<libc.Int32FromInt32(32)
		}
		**(**Ti64)(__ccgo_up(pNum)) = v5
	} else {
		if neg != 0 {
			**(**Ti64)(__ccgo_up(pNum)) = -libc.Int64FromUint64(u)
		} else {
			**(**Ti64)(__ccgo_up(pNum)) = libc.Int64FromUint64(u)
		}
	}
	rc = 0
	if i == 0 && zStart == zNum { /* No digits */
		rc = -int32(1)
	} else {
		if nonNum != 0 { /* UTF16 with high-order bytes non-zero */
			rc = int32(1)
		} else {
			if zNum+uintptr(i) < zEnd { /* Extra bytes at the end */
				jj = i
				for cond := true; cond; cond = zNum+uintptr(jj) < zEnd {
					if !(libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(zNum + uintptr(jj))))])&libc.Int32FromInt32(0x01) != 0) {
						rc = int32(1) /* Extra non-space text after the integer */
						break
					}
					jj = jj + incr
				}
			}
		}
	}
	if i < int32(19)*incr {
		/* Less than 19 digits, so we know that it fits in 64 bits */
		return rc
	} else {
		/* zNum is a 19-digit numbers.  Compare it against 9223372036854775808. */
		if i > int32(19)*incr {
			v6 = int32(1)
		} else {
			v6 = _compare2pow63(tls, zNum, incr)
		}
		j = v6
		if j < 0 {
			/* zNum is less than 9223372036854775808 so it fits */
			return rc
		} else {
			if neg != 0 {
				v5 = int64(-libc.Int32FromInt32(1)) - (libc.Int64FromUint32(0xffffffff) | libc.Int64FromInt32(0x7fffffff)<<libc.Int32FromInt32(32))
			} else {
				v5 = libc.Int64FromUint32(0xffffffff) | libc.Int64FromInt32(0x7fffffff)<<libc.Int32FromInt32(32)
			}
			**(**Ti64)(__ccgo_up(pNum)) = v5
			if j > 0 {
				/* zNum is greater than 9223372036854775808 so it overflows */
				return int32(2)
			} else {
				/* zNum is exactly 9223372036854775808.  Fits if negative.  The
				 ** special case 2 overflow if positive */
				if neg != 0 {
					v6 = rc
				} else {
					v6 = int32(3)
				}
				return v6
			}
		}
	}
	return r
}

// C documentation
//
//	/*
//	** Return the collating sequence name for a column
//	*/
func _sqlite3ColumnColl(tls *libc.TLS, pCol uintptr) (r uintptr) {
	var z uintptr
	_ = z
	if libc.Int32FromUint16((*TColumn)(unsafe.Pointer(pCol)).FcolFlags)&int32(COLFLAG_HASCOLL) == 0 {
		return uintptr(0)
	}
	z = (*TColumn)(unsafe.Pointer(pCol)).FzCnName
	for **(**int8)(__ccgo_up(z)) != 0 {
		z = z + 1
	}
	if libc.Int32FromUint16((*TColumn)(unsafe.Pointer(pCol)).FcolFlags)&int32(COLFLAG_HASTYPE) != 0 {
		for cond := true; cond; cond = **(**int8)(__ccgo_up(z)) != 0 {
			z = z + 1
		}
	}
	return z + uintptr(1)
}

// C documentation
//
//	/*
//	** Convert an SQL-style quoted string into a normal string by removing
//	** the quote characters.  The conversion is done in-place.  If the
//	** input does not begin with a quote character, then this routine
//	** is a no-op.
//	**
//	** The input string must be zero-terminated.  A new zero-terminator
//	** is added to the dequoted string.
//	**
//	** The return value is -1 if no dequoting occurs or the length of the
//	** dequoted string, exclusive of the zero terminator, if dequoting does
//	** occur.
//	**
//	** 2002-02-14: This routine is extended to remove MS-Access style
//	** brackets from around identifiers.  For example:  "[a-b-c]" becomes
//	** "a-b-c".
//	*/
func _sqlite3Dequote(tls *libc.TLS, z uintptr) {
	var i, j, v2 int32
	var quote int8
	_, _, _, _ = i, j, quote, v2
	if z == uintptr(0) {
		return
	}
	quote = **(**int8)(__ccgo_up(z))
	if !(libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(quote)])&libc.Int32FromInt32(0x80) != 0) {
		return
	}
	if int32(quote) == int32('[') {
		quote = int8(']')
	}
	i = int32(1)
	j = libc.Int32FromInt32(0)
	for {
		if int32(**(**int8)(__ccgo_up(z + uintptr(i)))) == int32(quote) {
			if int32(**(**int8)(__ccgo_up(z + uintptr(i+int32(1))))) == int32(quote) {
				v2 = j
				j = j + 1
				**(**int8)(__ccgo_up(z + uintptr(v2))) = quote
				i = i + 1
			} else {
				break
			}
		} else {
			v2 = j
			j = j + 1
			**(**int8)(__ccgo_up(z + uintptr(v2))) = **(**int8)(__ccgo_up(z + uintptr(i)))
		}
		goto _1
	_1:
		;
		i = i + 1
	}
	**(**int8)(__ccgo_up(z + uintptr(j))) = 0
}

func _sqlite3DequoteExpr(tls *libc.TLS, p uintptr) {
	var v1 int32
	_ = v1
	if int32(**(**int8)(__ccgo_up(*(*uintptr)(unsafe.Pointer(p + 8))))) == int32('"') {
		v1 = libc.Int32FromInt32(EP_Quoted) | libc.Int32FromInt32(EP_DblQuoted)
	} else {
		v1 = int32(EP_Quoted)
	}
	**(**Tu32)(__ccgo_up(p + 4)) |= libc.Uint32FromInt32(v1)
	_sqlite3Dequote(tls, *(*uintptr)(unsafe.Pointer(p + 8)))
}

// C documentation
//
//	/*
//	** Return TRUE if the given expression is a constant which would be
//	** unchanged by OP_Affinity with the affinity given in the second
//	** argument.
//	**
//	** This routine is used to determine if the OP_Affinity operation
//	** can be omitted.  When in doubt return FALSE.  A false negative
//	** is harmless.  A false positive, however, can result in the wrong
//	** answer.
//	*/
func _sqlite3ExprNeedsNoAffinityChange(tls *libc.TLS, p uintptr, aff int8) (r int32) {
	var op Tu8
	var unaryMinus int32
	_, _ = op, unaryMinus
	unaryMinus = 0
	if int32(aff) == int32(SQLITE_AFF_BLOB) {
		return int32(1)
	}
	for libc.Int32FromUint8((*TExpr)(unsafe.Pointer(p)).Fop) == int32(TK_UPLUS) || libc.Int32FromUint8((*TExpr)(unsafe.Pointer(p)).Fop) == int32(TK_UMINUS) {
		if libc.Int32FromUint8((*TExpr)(unsafe.Pointer(p)).Fop) == int32(TK_UMINUS) {
			unaryMinus = int32(1)
		}
		p = (*TExpr)(unsafe.Pointer(p)).FpLeft
	}
	op = (*TExpr)(unsafe.Pointer(p)).Fop
	if libc.Int32FromUint8(op) == int32(TK_REGISTER) {
		op = (*TExpr)(unsafe.Pointer(p)).Fop2
	}
	switch libc.Int32FromUint8(op) {
	case int32(TK_INTEGER):
		return libc.BoolInt32(int32(aff) >= int32(SQLITE_AFF_NUMERIC))
	case int32(TK_FLOAT):
		return libc.BoolInt32(int32(aff) >= int32(SQLITE_AFF_NUMERIC))
	case int32(TK_STRING):
		return libc.BoolInt32(!(unaryMinus != 0) && int32(aff) == int32(SQLITE_AFF_TEXT))
	case int32(TK_BLOB):
		return libc.BoolInt32(!(unaryMinus != 0))
	case int32(TK_COLUMN):
		/* p cannot be part of a CHECK constraint */
		return libc.BoolInt32(int32(aff) >= int32(SQLITE_AFF_NUMERIC) && int32((*TExpr)(unsafe.Pointer(p)).FiColumn) < 0)
	default:
		return 0
	}
	return r
}

// C documentation
//
//	/*
//	** Argument p points to a buffer containing utf-8 text that is n bytes in
//	** size. Return the number of bytes in the nChar character prefix of the
//	** buffer, or 0 if there are less than nChar characters in total.
//	*/
func _sqlite3Fts5IndexCharlenToBytelen(tls *libc.TLS, p uintptr, nByte int32, nChar int32) (r int32) {
	var i, n, v2 int32
	_, _, _ = i, n, v2
	n = 0
	i = 0
	for {
		if !(i < nChar) {
			break
		}
		if n >= nByte {
			return 0
		} /* Input contains fewer than nChar chars */
		v2 = n
		n = n + 1
		if libc.Int32FromUint8(libc.Uint8FromInt8(**(**int8)(__ccgo_up(p + uintptr(v2))))) >= int32(0xc0) {
			if n >= nByte {
				return 0
			}
			for int32(**(**int8)(__ccgo_up(p + uintptr(n))))&int32(0xc0) == int32(0x80) {
				n = n + 1
				if n >= nByte {
					if i+int32(1) == nChar {
						break
					}
					return 0
				}
			}
		}
		goto _1
	_1:
		;
		i = i + 1
	}
	return n
}

// C documentation
//
//	/*
//	** Return a simple checksum value based on the arguments.
//	*/
func _sqlite3Fts5IndexEntryCksum(tls *libc.TLS, iRowid Ti64, iCol int32, iPos int32, iIdx int32, pTerm uintptr, nTerm int32) (r Tu64) {
	var i int32
	var ret Tu64
	_, _ = i, ret
	ret = libc.Uint64FromInt64(iRowid)
	ret = ret + (ret<<libc.Int32FromInt32(3) + libc.Uint64FromInt32(iCol))
	ret = ret + (ret<<libc.Int32FromInt32(3) + libc.Uint64FromInt32(iPos))
	if iIdx >= 0 {
		ret = ret + (ret<<libc.Int32FromInt32(3) + libc.Uint64FromInt32(libc.Int32FromUint8('0')+iIdx))
	}
	i = 0
	for {
		if !(i < nTerm) {
			break
		}
		ret = ret + (ret<<libc.Int32FromInt32(3) + libc.Uint64FromInt8(**(**int8)(__ccgo_up(pTerm + uintptr(i)))))
		goto _1
	_1:
		;
		i = i + 1
	}
	return ret
}

// C documentation
//
//	/*
//	** Try to convert z into an unsigned 32-bit integer.  Return true on
//	** success and false if there is an error.
//	**
//	** Only decimal notation is accepted.
//	*/
func _sqlite3GetUInt32(tls *libc.TLS, z uintptr, pI uintptr) (r int32) {
	var i int32
	var v Tu64
	_, _ = i, v
	v = uint64(0)
	i = 0
	for {
		if !(libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(z + uintptr(i))))])&int32(0x04) != 0) {
			break
		}
		v = v*uint64(10) + libc.Uint64FromInt8(**(**int8)(__ccgo_up(z + uintptr(i)))) - uint64('0')
		if v > uint64(4294967296) {
			**(**Tu32)(__ccgo_up(pI)) = uint32(0)
			return 0
		}
		goto _1
	_1:
		;
		i = i + 1
	}
	if i == 0 || int32(**(**int8)(__ccgo_up(z + uintptr(i)))) != 0 {
		**(**Tu32)(__ccgo_up(pI)) = uint32(0)
		return 0
	}
	**(**Tu32)(__ccgo_up(pI)) = uint32(v)
	return int32(1)
}

/*
** The variable-length integer encoding is as follows:
**
** KEY:
**         A = 0xxxxxxx    7 bits of data and one flag bit
**         B = 1xxxxxxx    7 bits of data and one flag bit
**         C = xxxxxxxx    8 bits of data
**
**  7 bits - A
** 14 bits - BA
** 21 bits - BBA
** 28 bits - BBBA
** 35 bits - BBBBA
** 42 bits - BBBBBA
** 49 bits - BBBBBBA
** 56 bits - BBBBBBBA
** 64 bits - BBBBBBBBC
 */

// C documentation
//
//	/*
//	** Convert a BLOB literal of the form "x'hhhhhh'" into its binary
//	** value.  Return a pointer to its binary value.  Space to hold the
//	** binary value has been obtained from malloc and must be freed by
//	** the calling routine.
//	*/
func _sqlite3HexToBlob(tls *libc.TLS, db uintptr, z uintptr, n int32) (r uintptr) {
	var i int32
	var zBlob uintptr
	_, _ = i, zBlob
	zBlob = _sqlite3DbMallocRawNN(tls, db, libc.Uint64FromInt32(n/int32(2)+int32(1)))
	n = n - 1
	if zBlob != 0 {
		i = 0
		for {
			if !(i < n) {
				break
			}
			**(**int8)(__ccgo_up(zBlob + uintptr(i/int32(2)))) = int8(libc.Int32FromUint8(_sqlite3HexToInt(tls, int32(**(**int8)(__ccgo_up(z + uintptr(i))))))<<int32(4) | libc.Int32FromUint8(_sqlite3HexToInt(tls, int32(**(**int8)(__ccgo_up(z + uintptr(i+int32(1))))))))
			goto _1
		_1:
			;
			i = i + int32(2)
		}
		**(**int8)(__ccgo_up(zBlob + uintptr(i/int32(2)))) = 0
	}
	return zBlob
}

// C documentation
//
//	/*
//	** Check to see if pExpr is one of the indexed expressions on pParse->pIdxEpr.
//	** If it is, then resolve the expression by reading from the index and
//	** return the register into which the value has been read.  If pExpr is
//	** not an indexed expression, then return negative.
//	*/
func _sqlite3IndexedExprLookup(tls *libc.TLS, pParse uintptr, pExpr uintptr, target int32) (r int32) {
	var addr, iDataCur int32
	var exprAff Tu8
	var p, v uintptr
	_, _, _, _, _ = addr, exprAff, iDataCur, p, v
	p = (*TParse)(unsafe.Pointer(pParse)).FpIdxEpr
	for {
		if !(p != 0) {
			break
		}
		iDataCur = (*TIndexedExpr)(unsafe.Pointer(p)).FiDataCur
		if iDataCur < 0 {
			goto _1
		}
		if (*TParse)(unsafe.Pointer(pParse)).FiSelfTab != 0 {
			if (*TIndexedExpr)(unsafe.Pointer(p)).FiDataCur != (*TParse)(unsafe.Pointer(pParse)).FiSelfTab-int32(1) {
				goto _1
			}
			iDataCur = -int32(1)
		}
		if _sqlite3ExprCompare(tls, uintptr(0), pExpr, (*TIndexedExpr)(unsafe.Pointer(p)).FpExpr, iDataCur) != 0 {
			goto _1
		}
		exprAff = libc.Uint8FromInt8(_sqlite3ExprAffinity(tls, pExpr))
		if libc.Int32FromUint8(exprAff) <= int32(SQLITE_AFF_BLOB) && libc.Int32FromUint8((*TIndexedExpr)(unsafe.Pointer(p)).Faff) != int32(SQLITE_AFF_BLOB) || libc.Int32FromUint8(exprAff) == int32(SQLITE_AFF_TEXT) && libc.Int32FromUint8((*TIndexedExpr)(unsafe.Pointer(p)).Faff) != int32(SQLITE_AFF_TEXT) || libc.Int32FromUint8(exprAff) >= int32(SQLITE_AFF_NUMERIC) && libc.Int32FromUint8((*TIndexedExpr)(unsafe.Pointer(p)).Faff) != int32(SQLITE_AFF_NUMERIC) {
			/* Affinity mismatch on a generated column */
			goto _1
		}
		/* Functions that might set a subtype should not be replaced by the
		 ** value taken from an expression index if they are themselves an
		 ** argument to another scalar function or aggregate.
		 ** https://sqlite.org/forum/forumpost/68d284c86b082c3e */
		if (*TExpr)(unsafe.Pointer(pExpr)).Fflags&libc.Uint32FromUint32(EP_SubtArg) != uint32(0) && _sqlite3ExprCanReturnSubtype(tls, pParse, pExpr) != 0 {
			goto _1
		}
		v = (*TParse)(unsafe.Pointer(pParse)).FpVdbe
		if (*TIndexedExpr)(unsafe.Pointer(p)).FbMaybeNullRow != 0 {
			/* If the index is on a NULL row due to an outer join, then we
			 ** cannot extract the value from the index.  The value must be
			 ** computed using the original expression. */
			addr = _sqlite3VdbeCurrentAddr(tls, v)
			_sqlite3VdbeAddOp3(tls, v, int32(OP_IfNullRow), (*TIndexedExpr)(unsafe.Pointer(p)).FiIdxCur, addr+int32(3), target)
			_sqlite3VdbeAddOp3(tls, v, int32(OP_Column), (*TIndexedExpr)(unsafe.Pointer(p)).FiIdxCur, (*TIndexedExpr)(unsafe.Pointer(p)).FiIdxCol, target)
			_sqlite3VdbeGoto(tls, v, 0)
			p = (*TParse)(unsafe.Pointer(pParse)).FpIdxEpr
			(*TParse)(unsafe.Pointer(pParse)).FpIdxEpr = uintptr(0)
			_sqlite3ExprCode(tls, pParse, pExpr, target)
			(*TParse)(unsafe.Pointer(pParse)).FpIdxEpr = p
			_sqlite3VdbeJumpHere(tls, v, addr+int32(2))
		} else {
			_sqlite3VdbeAddOp3(tls, v, int32(OP_Column), (*TIndexedExpr)(unsafe.Pointer(p)).FiIdxCur, (*TIndexedExpr)(unsafe.Pointer(p)).FiIdxCol, target)
		}
		return target
		goto _1
	_1:
		;
		p = (*TIndexedExpr)(unsafe.Pointer(p)).FpIENext
	}
	return -int32(1) /* Not found */
}

// C documentation
//
//	/*
//	** This routine implements the uncommon and slower path for
//	** sqlite3MemRealValueRC() that has to deal with input strings
//	** that are not UTF8 or that are not zero-terminated.  It is
//	** broken out into a separate no-inline routine so that the
//	** main sqlite3MemRealValueRC() routine can avoid unnecessary
//	** stack pushes.
//	**
//	** A text->float translation of pMem->z is written into *pValue.
//	**
//	** Result code invariants:
//	**
//	**    rc==0         =>   ERROR: Input string not well-formed, or OOM
//	**    rc<0          =>   Some prefix of the input is well-formed
//	**    rc>0          =>   All of the input is well-formed
//	**    (rc&2)==0     =>   The number is expressed as an integer, with no
//	**                       decimal point or eNNN suffix.
//	*/
func _sqlite3MemRealValueRCSlowPath(tls *libc.TLS, pMem uintptr, pValue uintptr) (r int32) {
	var i, j, n, rc, v2 int32
	var z, zCopy, zCopy1 uintptr
	_, _, _, _, _, _, _, _ = i, j, n, rc, z, zCopy, zCopy1, v2
	rc = SQLITE_OK
	**(**float64)(__ccgo_up(pValue)) = float64(0)
	if libc.Int32FromUint8((*TMem)(unsafe.Pointer(pMem)).Fenc) == int32(SQLITE_UTF8) {
		zCopy = _sqlite3DbStrNDup(tls, (*TMem)(unsafe.Pointer(pMem)).Fdb, (*TMem)(unsafe.Pointer(pMem)).Fz, libc.Uint64FromInt32((*TMem)(unsafe.Pointer(pMem)).Fn))
		if zCopy != 0 {
			rc = _sqlite3AtoF(tls, zCopy, pValue)
			_sqlite3DbFree(tls, (*TMem)(unsafe.Pointer(pMem)).Fdb, zCopy)
		}
		return rc
	} else {
		n = (*TMem)(unsafe.Pointer(pMem)).Fn & ^libc.Int32FromInt32(1)
		zCopy1 = _sqlite3DbMallocRaw(tls, (*TMem)(unsafe.Pointer(pMem)).Fdb, libc.Uint64FromInt32(n/int32(2)+int32(2)))
		if zCopy1 != 0 {
			z = (*TMem)(unsafe.Pointer(pMem)).Fz
			if libc.Int32FromUint8((*TMem)(unsafe.Pointer(pMem)).Fenc) == int32(SQLITE_UTF16LE) {
				v2 = libc.Int32FromInt32(0)
				j = v2
				i = v2
				for {
					if !(i < n-int32(1)) {
						break
					}
					**(**int8)(__ccgo_up(zCopy1 + uintptr(j))) = **(**int8)(__ccgo_up(z + uintptr(i)))
					if int32(**(**int8)(__ccgo_up(z + uintptr(i+int32(1))))) != 0 {
						break
					}
					goto _1
				_1:
					;
					i = i + int32(2)
					j = j + 1
				}
			} else {
				v2 = libc.Int32FromInt32(0)
				j = v2
				i = v2
				for {
					if !(i < n-int32(1)) {
						break
					}
					if int32(**(**int8)(__ccgo_up(z + uintptr(i)))) != 0 {
						break
					}
					**(**int8)(__ccgo_up(zCopy1 + uintptr(j))) = **(**int8)(__ccgo_up(z + uintptr(i+int32(1))))
					goto _3
				_3:
					;
					i = i + int32(2)
					j = j + 1
				}
			}
			**(**int8)(__ccgo_up(zCopy1 + uintptr(j))) = 0
			rc = _sqlite3AtoF(tls, zCopy1, pValue)
			if i < n {
				rc = -int32(100)
			}
			_sqlite3DbFree(tls, (*TMem)(unsafe.Pointer(pMem)).Fdb, zCopy1)
		}
		return rc
	}
	return r
}

func _sqlite3StrAccumFinish(tls *libc.TLS, p uintptr) (r uintptr) {
	if (*TStrAccum)(unsafe.Pointer(p)).FzText != 0 {
		**(**int8)(__ccgo_up((*TStrAccum)(unsafe.Pointer(p)).FzText + uintptr((*TStrAccum)(unsafe.Pointer(p)).FnChar))) = 0
		if (*TStrAccum)(unsafe.Pointer(p)).FmxAlloc > uint32(0) && !(libc.Int32FromUint8((*TStrAccum)(unsafe.Pointer(p)).FprintfFlags)&libc.Int32FromInt32(SQLITE_PRINTF_MALLOCED) != libc.Int32FromInt32(0)) {
			return _strAccumFinishRealloc(tls, p)
		}
	}
	return (*TStrAccum)(unsafe.Pointer(p)).FzText
}

// C documentation
//
//	/*
//	** Compute an 8-bit hash on a string that is insensitive to case differences
//	*/
func _sqlite3StrIHash(tls *libc.TLS, z uintptr) (r Tu8) {
	var h Tu8
	_ = h
	h = uint8(0)
	if z == uintptr(0) {
		return uint8(0)
	}
	for **(**int8)(__ccgo_up(z)) != 0 {
		h = libc.Uint8FromInt32(int32(h) + libc.Int32FromUint8(_sqlite3UpperToLower[libc.Uint8FromInt8(**(**int8)(__ccgo_up(z)))]))
		z = z + 1
	}
	return h
}

// C documentation
//
//	/*
//	** Exported version of applyAffinity(). This one works on sqlite3_value*,
//	** not the internal Mem* type.
//	*/
func _sqlite3ValueApplyAffinity(tls *libc.TLS, pVal uintptr, affinity Tu8, enc Tu8) {
	_applyAffinity(tls, pVal, libc.Int8FromUint8(affinity), enc)
}

// C documentation
//
//	/*
//	** Move data out of a btree key or data field and into a Mem structure.
//	** The data is payload from the entry that pCur is currently pointing
//	** to.  offset and amt determine what portion of the data or key to retrieve.
//	** The result is written into the pMem element.
//	**
//	** The pMem object must have been initialized.  This routine will use
//	** pMem->zMalloc to hold the content from the btree, if possible.  New
//	** pMem->zMalloc space will be allocated if necessary.  The calling routine
//	** is responsible for making sure that the pMem object is eventually
//	** destroyed.
//	**
//	** If this routine fails for any reason (malloc returns NULL or unable
//	** to read from the disk) then the pMem is left in an inconsistent state.
//	*/
func _sqlite3VdbeMemFromBtree(tls *libc.TLS, pCur uintptr, offset Tu32, amt Tu32, pMem uintptr) (r int32) {
	var rc, v1 int32
	_, _ = rc, v1
	(*TMem)(unsafe.Pointer(pMem)).Fflags = uint16(MEM_Null)
	if amt >= uint32(SQLITE_MAX_ALLOCATION_SIZE) {
		return int32(SQLITE_NOMEM)
	}
	if uint64(amt)+uint64(offset) > libc.Uint64FromInt64(_sqlite3BtreeMaxRecordSize(tls, pCur)) {
		return _sqlite3CorruptError(tls, int32(87091))
	}
	v1 = _sqlite3VdbeMemClearAndResize(tls, pMem, libc.Int32FromUint32(amt+uint32(1)))
	rc = v1
	if SQLITE_OK == v1 {
		rc = _sqlite3BtreePayload(tls, pCur, offset, amt, (*TMem)(unsafe.Pointer(pMem)).Fz)
		if rc == SQLITE_OK {
			**(**int8)(__ccgo_up((*TMem)(unsafe.Pointer(pMem)).Fz + uintptr(amt))) = 0 /* Overrun area used when reading malformed records */
			(*TMem)(unsafe.Pointer(pMem)).Fflags = uint16(MEM_Blob)
			(*TMem)(unsafe.Pointer(pMem)).Fn = libc.Int32FromUint32(amt)
		} else {
			_sqlite3VdbeMemRelease(tls, pMem)
		}
	}
	return rc
}

// C documentation
//
//	/*
//	** The hashing function.
//	*/
func _strHash(tls *libc.TLS, z uintptr) (r uint32) {
	var h uint32
	var v1 uintptr
	_, _ = h, v1
	h = uint32(0)
	for **(**int8)(__ccgo_up(z)) != 0 { /*OPTIMIZATION-IF-TRUE*/
		/* Knuth multiplicative hashing.  (Sorting & Searching, p. 510).
		 ** 0x9e3779b1 is 2654435761 which is the closest prime number to
		 ** (2**32)*golden_ratio, where golden_ratio = (sqrt(5) - 1)/2.
		 **
		 ** Only bits 0xdf for ASCII and bits 0xbf for EBCDIC each octet are
		 ** hashed since the omitted bits determine the upper/lower case difference.
		 */
		v1 = z
		z = z + 1
		h = h + libc.Uint32FromInt32(int32(0xdf)&libc.Int32FromUint8(libc.Uint8FromInt8(**(**int8)(__ccgo_up(v1)))))
		h = h * uint32(0x9e3779b1)
	}
	return h
}

// C documentation
//
//	/*
//	** We already know that pExpr is a binary operator where both operands are
//	** column references.  This routine checks to see if pExpr is an equivalence
//	** relation:
//	**   1.  The SQLITE_Transitive optimization must be enabled
//	**   2.  Must be either an == or an IS operator
//	**   3.  Not originating in the ON clause of an OUTER JOIN
//	**   4.  The operator is not IS or else the query does not contain RIGHT JOIN
//	**   5.  The affinities of A and B must be compatible
//	**   6.  Both operands use the same collating sequence, and they must not
//	**       use explicit COLLATE clauses.
//	** If this routine returns TRUE, that means that the RHS can be substituted
//	** for the LHS anyplace else in the WHERE clause where the LHS column occurs.
//	** This is an optimization.  No harm comes from returning 0.  But if 1 is
//	** returned when it should not be, then incorrect answers might result.
//	*/
func _termIsEquivalence(tls *libc.TLS, pParse uintptr, pExpr uintptr, pSrc uintptr) (r int32) {
	var aff1, aff2 int8
	_, _ = aff1, aff2
	if !((*Tsqlite3)(unsafe.Pointer((*TParse)(unsafe.Pointer(pParse)).Fdb)).FdbOptFlags&libc.Uint32FromInt32(libc.Int32FromInt32(SQLITE_Transitive)) == libc.Uint32FromInt32(0)) {
		return 0
	} /* (1) */
	if libc.Int32FromUint8((*TExpr)(unsafe.Pointer(pExpr)).Fop) != int32(TK_EQ) && libc.Int32FromUint8((*TExpr)(unsafe.Pointer(pExpr)).Fop) != int32(TK_IS) {
		return 0
	} /* (2) */
	if (*TExpr)(unsafe.Pointer(pExpr)).Fflags&libc.Uint32FromInt32(libc.Int32FromInt32(EP_OuterON)|libc.Int32FromInt32(EP_Collate)) != uint32(0) {
		return 0
	} /* (3) */
	if libc.Int32FromUint8((*TExpr)(unsafe.Pointer(pExpr)).Fop) == int32(TK_IS) && (*TSrcList)(unsafe.Pointer(pSrc)).FnSrc >= int32(2) && libc.Int32FromUint8((*(*TSrcItem)(unsafe.Pointer(pSrc + 8))).Ffg.Fjointype)&int32(JT_LTORJ) != 0 {
		return 0 /* (4) */
	}
	aff1 = _sqlite3ExprAffinity(tls, (*TExpr)(unsafe.Pointer(pExpr)).FpLeft)
	aff2 = _sqlite3ExprAffinity(tls, (*TExpr)(unsafe.Pointer(pExpr)).FpRight)
	if int32(aff1) != int32(aff2) && (!(int32(aff1) >= libc.Int32FromInt32(SQLITE_AFF_NUMERIC)) || !(int32(aff2) >= libc.Int32FromInt32(SQLITE_AFF_NUMERIC))) {
		return 0 /* (5) */
	}
	if !(_sqlite3ExprCollSeqMatch(tls, pParse, (*TExpr)(unsafe.Pointer(pExpr)).FpLeft, (*TExpr)(unsafe.Pointer(pExpr)).FpRight) != 0) {
		return 0 /* (6) */
	}
	return int32(1)
}

// C documentation
//
//	/*
//	** Duplicate a range of text from an SQL statement, then convert all
//	** whitespace characters into ordinary space characters.
//	*/
func _triggerSpanDup(tls *libc.TLS, db uintptr, zStart uintptr, zEnd uintptr) (r uintptr) {
	var i int32
	var z uintptr
	_, _ = i, z
	z = _sqlite3DbSpanDup(tls, db, zStart, zEnd)
	if z != 0 {
		i = 0
		for {
			if !(**(**int8)(__ccgo_up(z + uintptr(i))) != 0) {
				break
			}
			if libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(z + uintptr(i))))])&int32(0x01) != 0 {
				**(**int8)(__ccgo_up(z + uintptr(i))) = int8(' ')
			}
			goto _1
		_1:
			;
			i = i + 1
		}
	}
	return z
}

// C documentation
//
//	/*
//	** Implementation of the upper() and lower() SQL functions.
//	*/
func _upperFunc(tls *libc.TLS, context uintptr, argc int32, argv uintptr) {
	var i, n int32
	var z1, z2 uintptr
	_, _, _, _ = i, n, z1, z2
	_ = argc
	z2 = Xsqlite3_value_text(tls, **(**uintptr)(__ccgo_up(argv)))
	n = Xsqlite3_value_bytes(tls, **(**uintptr)(__ccgo_up(argv)))
	/* Verify that the call to _bytes() does not invalidate the _text() pointer */
	if z2 != 0 {
		z1 = _contextMalloc(tls, context, int64(n)+int64(1))
		if z1 != 0 {
			i = 0
			for {
				if !(i < n) {
					break
				}
				**(**int8)(__ccgo_up(z1 + uintptr(i))) = int8(int32(**(**int8)(__ccgo_up(z2 + uintptr(i)))) & ^(libc.Int32FromUint8(_sqlite3CtypeMap[libc.Uint8FromInt8(**(**int8)(__ccgo_up(z2 + uintptr(i))))]) & libc.Int32FromInt32(0x20)))
				goto _1
			_1:
				;
				i = i + 1
			}
			Xsqlite3_result_text(tls, context, z1, n, __ccgo_fp(Xsqlite3_free))
		}
	}
}