1 files changed, 48 insertions, 0 deletions
diff --git a/vendor/modernc.org/libc/libc64.go b/vendor/modernc.org/libc/libc64.go
index 01690fe8e..6047a5ec4 100644
--- a/vendor/modernc.org/libc/libc64.go
+++ b/vendor/modernc.org/libc/libc64.go
@@ -7,6 +7,13 @@
 
 package libc // import "modernc.org/libc"
 
+import (
+	"unsafe"
+
+	"modernc.org/libc/limits"
+	"modernc.org/libc/sys/types"
+)
+
 const (
 	heapSize = 2 << 30 // Adjust for your debugging session requirements and system RAM size.
 )
@@ -26,3 +33,44 @@ type bits []int
 func newBits(n int) (r bits)  { return make(bits, (n+63)>>6) }
 func (b bits) has(n int) bool { return b != nil && b[n>>6]&(1<<uint(n&63)) != 0 }
 func (b bits) set(n int)      { b[n>>6] |= 1 << uint(n&63) }
+
+func Xstrchrnul(tls *TLS, s uintptr, c int32) (r uintptr) {
+	var k types.Size_t
+	var w uintptr
+	_, _ = k, w
+	c = int32(uint8(uint8(c)))
+	if !(c != 0) {
+		return s + uintptr(Xstrlen(tls, s))
+	}
+	for {
+		if !(uint64(uint64(s))%Uint64FromInt64(8) != 0) {
+			break
+		}
+		if !(*(*int8)(unsafe.Pointer(s)) != 0) || int32(*(*uint8)(unsafe.Pointer(s))) == c {
+			return s
+		}
+		goto _1
+	_1:
+		s++
+	}
+	k = uint64(-Int32FromInt32(1)) / Uint64FromInt32(limits.UCHAR_MAX) * uint64(uint64(c))
+	w = s
+	for {
+		if !(!((*(*uint64)(unsafe.Pointer(w))-uint64(-Int32FromInt32(1))/Uint64FromInt32(limits.UCHAR_MAX)) & ^*(*uint64)(unsafe.Pointer(w)) & (uint64(-Int32FromInt32(1))/Uint64FromInt32(limits.UCHAR_MAX)*uint64(Int32FromInt32(limits.UCHAR_MAX)/Int32FromInt32(2)+Int32FromInt32(1))) != 0) && !((*(*uint64)(unsafe.Pointer(w))^k-uint64(-Int32FromInt32(1))/Uint64FromInt32(limits.UCHAR_MAX)) & ^(*(*uint64)(unsafe.Pointer(w))^k) & (uint64(-Int32FromInt32(1))/Uint64FromInt32(limits.UCHAR_MAX)*uint64(Int32FromInt32(limits.UCHAR_MAX)/Int32FromInt32(2)+Int32FromInt32(1))) != 0)) {
+			break
+		}
+		goto _2
+	_2:
+		w += 8
+	}
+	s = w
+	for {
+		if !(*(*int8)(unsafe.Pointer(s)) != 0 && int32(*(*uint8)(unsafe.Pointer(s))) != c) {
+			break
+		}
+		goto _3
+	_3:
+		s++
+	}
+	return s
+}