Fix: Pointer cast in GoLang

ashvardanian · ashvardanian · commit fb20b6c7a493 · 2025-12-14T21:15:09.000Z
diff --git a/golang/lib.go b/golang/lib.go
@@ -202,7 +202,7 @@ func Utf8CaseFold(str string, validate bool) (string, error) {
 	srcPtr := (*C.char)(unsafe.Pointer(unsafe.StringData(str)))
 	srcLen := C.ulong(len(str))
 	dst := make([]byte, len(str)*3)
-	outLen := int(C.sz_utf8_case_fold(srcPtr, srcLen, unsafe.Pointer(&dst[0])))
+	outLen := int(C.sz_utf8_case_fold(srcPtr, srcLen, (*C.char)(unsafe.Pointer(&dst[0]))))
 	return string(dst[:outLen]), nil
 }
 

Original file line number	Diff line number	Diff line change
`@@ -202,7 +202,7 @@ func Utf8CaseFold(str string, validate bool) (string, error) {`
`202`	`202`	`srcPtr := (*C.char)(unsafe.Pointer(unsafe.StringData(str)))`
`203`	`203`	`srcLen := C.ulong(len(str))`
`204`	`204`	`dst := make([]byte, len(str)*3)`
`205`		`- outLen := int(C.sz_utf8_case_fold(srcPtr, srcLen, unsafe.Pointer(&dst[0])))`
	`205`	`+ outLen := int(C.sz_utf8_case_fold(srcPtr, srcLen, (*C.char)(unsafe.Pointer(&dst[0]))))`
`206`	`206`	`return string(dst[:outLen]), nil`
`207`	`207`	`}`
`208`	`208`