Cleaned up code.

Sriya Pratipati · Sriya Pratipati · commit 530268ce420d · 2025-06-02T19:14:27.000Z
diff --git a/libc/src/wchar/wcscat.cpp b/libc/src/wchar/wcscat.cpp
@@ -19,10 +19,11 @@ namespace LIBC_NAMESPACE_DECL {
 LLVM_LIBC_FUNCTION(wchar_t *, wcscat,
                    (wchar_t *__restrict s1, const wchar_t *__restrict s2)) {
   size_t size_1 = internal::string_length(s1);
-  size_t size_2 = internal::string_length(s2);
-  for (size_t i = 0; i <= size_2; i++) {
+  size_t i = 0;
+  for (; s2[i] != L'\0'; i++) {
     s1[size_1 + i] = s2[i];
   }
+  s1[size_1 + i] = L'\0';
   return s1;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -19,10 +19,11 @@ namespace LIBC_NAMESPACE_DECL {`
`19`	`19`	`LLVM_LIBC_FUNCTION(wchar_t *, wcscat,`
`20`	`20`	`(wchar_t __restrict s1, const wchar_t __restrict s2)) {`
`21`	`21`	`size_t size_1 = internal::string_length(s1);`
`22`		`- size_t size_2 = internal::string_length(s2);`
`23`		`- for (size_t i = 0; i <= size_2; i++) {`
	`22`	`+ size_t i = 0;`
	`23`	`+ for (; s2[i] != L'\0'; i++) {`
`24`	`24`	`s1[size_1 + i] = s2[i];`
`25`	`25`	`}`
	`26`	`+ s1[size_1 + i] = L'\0';`
`26`	`27`	`return s1;`
`27`	`28`	`}`
`28`	`29`