Avoid some "gcc -pedantic" warnings.

[gnulib.git] / lib / string.in.h

diff --git a/lib/string.in.h b/lib/string.in.h
index d88e8a7..a193d89 100644 (file)
--- a/lib/string.in.h
+++ b/lib/string.in.h
@@ -18,6 +18,8 @@
 
 #ifndef _GL_STRING_H
 
+@PRAGMA_SYSTEM_HEADER@
+
 /* The include_next requires a split double-inclusion guard.  */
 #@INCLUDE_NEXT@ @NEXT_STRING_H@
 
@@ -93,6 +95,22 @@ extern void *memrchr (void const *, int, size_t)
      memrchr (a, b, c))
 #endif
 
+/* Find the first occurrence of C in S.  More efficient than
+   memchr(S,C,N), at the expense of undefined behavior if C does not
+   occur within N bytes.  */
+#if @GNULIB_RAWMEMCHR@
+# if ! @HAVE_RAWMEMCHR@
+extern void *rawmemchr (void const *__s, int __c_in)
+  __attribute__ ((__pure__));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef rawmemchr
+# define rawmemchr(a,b) \
+    (GL_LINK_WARNING ("rawmemchr is unportable - " \
+                      "use gnulib module rawmemchr for portability"), \
+     rawmemchr (a, b))
+#endif
+
 /* Copy SRC to DST, returning the address of the terminating '\0' in DST.  */
 #if @GNULIB_STPCPY@
 # if ! @HAVE_STPCPY@
@@ -560,6 +578,18 @@ extern char *strsignal (int __sig);
      strsignal (a))
 #endif
 
+#if @GNULIB_STRVERSCMP@
+# if !@HAVE_STRVERSCMP@
+extern int strverscmp (const char *, const char *);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef strverscmp
+# define strverscmp(a, b) \
+    (GL_LINK_WARNING ("strverscmp is unportable - " \
+                      "use gnulib module strverscmp for portability"), \
+     strverscmp (a, b))
+#endif
+
 
 #ifdef __cplusplus
 }