[llvm] [Support] Give llvm_strlcpy restrict semantics (PR #78168)

[via llvm-commits]

github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

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``````````bash
git-clang-format --diff d85df3f2d6e8687c44e6802dcc0e59c14ff32c9b 1cbc56a63c97f6ab65b4ba81d4fed3c34e9ec0be -- llvm/lib/Support/regex_impl.h llvm/lib/Support/regstrlcpy.c
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View the diff from clang-format here.
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``````````diff
diff --git a/llvm/lib/Support/regex_impl.h b/llvm/lib/Support/regex_impl.h
index 6b780da10e..1d98964b9f 100644
--- a/llvm/lib/Support/regex_impl.h
+++ b/llvm/lib/Support/regex_impl.h
@@ -99,7 +99,8 @@ size_t	llvm_regerror(int, const llvm_regex_t *, char *, size_t);
 int	llvm_regexec(const llvm_regex_t *, const char *, size_t,
                      llvm_regmatch_t [], int);
 void	llvm_regfree(llvm_regex_t *);
-size_t  llvm_strlcpy(char *__restrict dst, const char * __restrict src, size_t siz);
+size_t llvm_strlcpy(char *__restrict dst, const char *__restrict src,
+                    size_t siz);
 
 #ifdef __cplusplus
 }
diff --git a/llvm/lib/Support/regstrlcpy.c b/llvm/lib/Support/regstrlcpy.c
index 1e55c4f36a..0f3b5e6517 100644
--- a/llvm/lib/Support/regstrlcpy.c
+++ b/llvm/lib/Support/regstrlcpy.c
@@ -25,28 +25,27 @@
  * will be copied.  Always NUL terminates (unless siz == 0).
  * Returns strlen(src); if retval >= siz, truncation occurred.
  */
-size_t
-llvm_strlcpy(char *__restrict dst, const char *__restrict src, size_t siz)
-{
-	char *d = dst;
-	const char *s = src;
-	size_t n = siz;
+size_t llvm_strlcpy(char *__restrict dst, const char *__restrict src,
+                    size_t siz) {
+  char *d = dst;
+  const char *s = src;
+  size_t n = siz;
 
-	/* Copy as many bytes as will fit */
-	if (n != 0) {
-		while (--n != 0) {
-			if ((*d++ = *s++) == '\0')
-				break;
-		}
-	}
+  /* Copy as many bytes as will fit */
+  if (n != 0) {
+    while (--n != 0) {
+      if ((*d++ = *s++) == '\0')
+        break;
+    }
+  }
 
-	/* Not enough room in dst, add NUL and traverse rest of src */
-	if (n == 0) {
-		if (siz != 0)
-			*d = '\0';		/* NUL-terminate dst */
-		while (*s++)
-			;
-	}
+  /* Not enough room in dst, add NUL and traverse rest of src */
+  if (n == 0) {
+    if (siz != 0)
+      *d = '\0'; /* NUL-terminate dst */
+    while (*s++)
+      ;
+  }
 
-	return(s - src - 1);	/* count does not include NUL */
+  return (s - src - 1); /* count does not include NUL */
 }

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https://github.com/llvm/llvm-project/pull/78168