[libc] Fix strspn

abrachet · abrachet · commit 96ff21243eba · 2023-03-03T19:51:46.000Z
diff --git a/libc/src/string/strspn.cpp b/libc/src/string/strspn.cpp
@@ -19,8 +19,9 @@ LLVM_LIBC_FUNCTION(size_t, strspn, (const char *src, const char *segment)) {
   cpp::bitset<256> bitset;
 
   for (; *segment; ++segment)
-    bitset.set(*segment);
-  for (; *src && bitset.test(*src); ++src)
+    bitset.set(*reinterpret_cast<const unsigned char *>(segment));
+  for (; *src && bitset.test(*reinterpret_cast<const unsigned char *>(src));
+       ++src)
     ;
   return src - initial;
 }

Original file line number	Diff line number	Diff line change
`@@ -19,8 +19,9 @@ LLVM_LIBC_FUNCTION(size_t, strspn, (const char src, const char segment)) {`
`19`	`19`	`cpp::bitset<256> bitset;`
`20`	`20`
`21`	`21`	`for (; *segment; ++segment)`
`22`		`- bitset.set(*segment);`
`23`		`- for (; src && bitset.test(src); ++src)`
	`22`	`+ bitset.set(reinterpret_cast<const unsigned char >(segment));`
	`23`	`+ for (; src && bitset.test(reinterpret_cast<const unsigned char *>(src));`
	`24`	`+ ++src)`
`24`	`25`	`;`
`25`	`26`	`return src - initial;`
`26`	`27`	`}`