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

//go:build (freebsd && 386) || (windows && 386)

package sqlite3

import (
	"unsafe"

	"modernc.org/libc"
)

type Ttime_t = int32

func _fts5ConfigSkipLiteral(tls *libc.TLS, pIn uintptr) (r uintptr) {
	var p uintptr
	_ = p
	p = pIn
	switch int32(**(**int8)(__ccgo_up(p))) {
	case int32('n'):
		fallthrough
	case int32('N'):
		if Xsqlite3_strnicmp(tls, __ccgo_ts+1688, p, int32(4)) == 0 {
			p = p + 4
		} else {
			p = uintptr(0)
		}
	case int32('x'):
		fallthrough
	case int32('X'):
		p = p + 1
		if int32(**(**int8)(__ccgo_up(p))) == int32('\'') {
			p = p + 1
			for int32(**(**int8)(__ccgo_up(p))) >= int32('a') && int32(**(**int8)(__ccgo_up(p))) <= int32('f') || int32(**(**int8)(__ccgo_up(p))) >= int32('A') && int32(**(**int8)(__ccgo_up(p))) <= int32('F') || int32(**(**int8)(__ccgo_up(p))) >= int32('0') && int32(**(**int8)(__ccgo_up(p))) <= int32('9') {
				p = p + 1
			}
			if int32(**(**int8)(__ccgo_up(p))) == int32('\'') && 0 == (int32(p)-int32(pIn))%int32(2) {
				p = p + 1
			} else {
				p = uintptr(0)
			}
		} else {
			p = uintptr(0)
		}
	case int32('\''):
		p = p + 1
		for p != 0 {
			if int32(**(**int8)(__ccgo_up(p))) == int32('\'') {
				p = p + 1
				if int32(**(**int8)(__ccgo_up(p))) != int32('\'') {
					break
				}
			}
			p = p + 1
			if int32(**(**int8)(__ccgo_up(p))) == 0 {
				p = uintptr(0)
			}
		}
	default:
		/* maybe a number */
		if int32(**(**int8)(__ccgo_up(p))) == int32('+') || int32(**(**int8)(__ccgo_up(p))) == int32('-') {
			p = p + 1
		}
		for _fts5_isdigit(tls, **(**int8)(__ccgo_up(p))) != 0 {
			p = p + 1
		}
		/* At this point, if the literal was an integer, the parse is
		 ** finished. Or, if it is a floating point value, it may continue
		 ** with either a decimal point or an 'E' character. */
		if int32(**(**int8)(__ccgo_up(p))) == int32('.') && _fts5_isdigit(tls, **(**int8)(__ccgo_up(p + 1))) != 0 {
			p = p + uintptr(2)
			for _fts5_isdigit(tls, **(**int8)(__ccgo_up(p))) != 0 {
				p = p + 1
			}
		}
		if p == pIn {
			p = uintptr(0)
		}
		break
	}
	return p
}

// C documentation
//
//	/*
//	** timediff(DATE1, DATE2)
//	**
//	** Return the amount of time that must be added to DATE2 in order to
//	** convert it into DATE2.  The time difference format is:
//	**
//	**     +YYYY-MM-DD HH:MM:SS.SSS
//	**
//	** The initial "+" becomes "-" if DATE1 occurs before DATE2.  For
//	** date/time values A and B, the following invariant should hold:
//	**
//	**     datetime(A) == (datetime(B, timediff(A,B))
//	**
//	** Both DATE arguments must be either a julian day number, or an
//	** ISO-8601 string.  The unix timestamps are not supported by this
//	** routine.
//	*/
func _timediffFunc(tls *libc.TLS, context uintptr, NotUsed1 int32, argv uintptr) {
	bp := tls.Alloc(192)
	defer tls.Free(192)
	var M, Y int32
	var sign int8
	var v1 uintptr
	var _ /* d1 at bp+0 */ TDateTime
	var _ /* d2 at bp+48 */ TDateTime
	var _ /* sRes at bp+96 */ Tsqlite3_str
	_, _, _, _ = M, Y, sign, v1
	_ = NotUsed1
	if _isDate(tls, context, int32(1), argv, bp) != 0 {
		return
	}
	if _isDate(tls, context, int32(1), argv+1*4, bp+48) != 0 {
		return
	}
	_computeYMD_HMS(tls, bp)
	_computeYMD_HMS(tls, bp+48)
	if (**(**TDateTime)(__ccgo_up(bp))).FiJD >= (**(**TDateTime)(__ccgo_up(bp + 48))).FiJD {
		sign = int8('+')
		Y = (**(**TDateTime)(__ccgo_up(bp))).FY - (**(**TDateTime)(__ccgo_up(bp + 48))).FY
		if Y != 0 {
			(**(**TDateTime)(__ccgo_up(bp + 48))).FY = (**(**TDateTime)(__ccgo_up(bp))).FY
			(**(**TDateTime)(__ccgo_up(bp + 48))).FvalidJD = 0
			_computeJD(tls, bp+48)
		}
		M = (**(**TDateTime)(__ccgo_up(bp))).FM - (**(**TDateTime)(__ccgo_up(bp + 48))).FM
		if M < 0 {
			Y = Y - 1
			M = M + int32(12)
		}
		if M != 0 {
			(**(**TDateTime)(__ccgo_up(bp + 48))).FM = (**(**TDateTime)(__ccgo_up(bp))).FM
			(**(**TDateTime)(__ccgo_up(bp + 48))).FvalidJD = 0
			_computeJD(tls, bp+48)
		}
		for (**(**TDateTime)(__ccgo_up(bp))).FiJD < (**(**TDateTime)(__ccgo_up(bp + 48))).FiJD {
			M = M - 1
			if M < 0 {
				M = int32(11)
				Y = Y - 1
			}
			(**(**TDateTime)(__ccgo_up(bp + 48))).FM = (**(**TDateTime)(__ccgo_up(bp + 48))).FM - 1
			if (**(**TDateTime)(__ccgo_up(bp + 48))).FM < int32(1) {
				(**(**TDateTime)(__ccgo_up(bp + 48))).FM = int32(12)
				(**(**TDateTime)(__ccgo_up(bp + 48))).FY = (**(**TDateTime)(__ccgo_up(bp + 48))).FY - 1
			}
			(**(**TDateTime)(__ccgo_up(bp + 48))).FvalidJD = 0
			_computeJD(tls, bp+48)
		}
		(**(**TDateTime)(__ccgo_up(bp))).FiJD -= (**(**TDateTime)(__ccgo_up(bp + 48))).FiJD
		v1 = bp
		*(*Tsqlite3_int64)(unsafe.Pointer(v1)) = Tsqlite3_int64(uint64(*(*Tsqlite3_int64)(unsafe.Pointer(v1))) + libc.Uint64FromInt32(1486995408)*libc.Uint64FromInt32(100000))
	} else { /* d1<d2 */
		sign = int8('-')
		Y = (**(**TDateTime)(__ccgo_up(bp + 48))).FY - (**(**TDateTime)(__ccgo_up(bp))).FY
		if Y != 0 {
			(**(**TDateTime)(__ccgo_up(bp + 48))).FY = (**(**TDateTime)(__ccgo_up(bp))).FY
			(**(**TDateTime)(__ccgo_up(bp + 48))).FvalidJD = 0
			_computeJD(tls, bp+48)
		}
		M = (**(**TDateTime)(__ccgo_up(bp + 48))).FM - (**(**TDateTime)(__ccgo_up(bp))).FM
		if M < 0 {
			Y = Y - 1
			M = M + int32(12)
		}
		if M != 0 {
			(**(**TDateTime)(__ccgo_up(bp + 48))).FM = (**(**TDateTime)(__ccgo_up(bp))).FM
			(**(**TDateTime)(__ccgo_up(bp + 48))).FvalidJD = 0
			_computeJD(tls, bp+48)
		}
		for (**(**TDateTime)(__ccgo_up(bp))).FiJD > (**(**TDateTime)(__ccgo_up(bp + 48))).FiJD {
			M = M - 1
			if M < 0 {
				M = int32(11)
				Y = Y - 1
			}
			(**(**TDateTime)(__ccgo_up(bp + 48))).FM = (**(**TDateTime)(__ccgo_up(bp + 48))).FM + 1
			if (**(**TDateTime)(__ccgo_up(bp + 48))).FM > int32(12) {
				(**(**TDateTime)(__ccgo_up(bp + 48))).FM = int32(1)
				(**(**TDateTime)(__ccgo_up(bp + 48))).FY = (**(**TDateTime)(__ccgo_up(bp + 48))).FY + 1
			}
			(**(**TDateTime)(__ccgo_up(bp + 48))).FvalidJD = 0
			_computeJD(tls, bp+48)
		}
		(**(**TDateTime)(__ccgo_up(bp))).FiJD = (**(**TDateTime)(__ccgo_up(bp + 48))).FiJD - (**(**TDateTime)(__ccgo_up(bp))).FiJD
		v1 = bp
		*(*Tsqlite3_int64)(unsafe.Pointer(v1)) = Tsqlite3_int64(uint64(*(*Tsqlite3_int64)(unsafe.Pointer(v1))) + libc.Uint64FromInt32(1486995408)*libc.Uint64FromInt32(100000))
	}
	_clearYMD_HMS_TZ(tls, bp)
	_computeYMD_HMS(tls, bp)
	_sqlite3StrAccumInit(tls, bp+96, uintptr(0), uintptr(0), 0, int32(100))
	Xsqlite3_str_appendf(tls, bp+96, __ccgo_ts+1483, libc.VaList(bp+128, int32(sign), Y, M, (**(**TDateTime)(__ccgo_up(bp))).FD-int32(1), (**(**TDateTime)(__ccgo_up(bp))).Fh, (**(**TDateTime)(__ccgo_up(bp))).Fm, (**(**TDateTime)(__ccgo_up(bp))).Fs))
	_sqlite3ResultStrAccum(tls, context, bp+96)
}