use restrict everywhere it's required by c99 and/or posix 2008

[musl] / include / iconv.h

diff --git a/include/iconv.h b/include/iconv.h
index f2ccaf8..cef06f6 100644 (file)
--- a/include/iconv.h
+++ b/include/iconv.h
@@ -5,6 +5,12 @@
 extern "C" {
 #endif
 
+#if __STDC_VERSION__ >= 199901L
+#define __restrict restrict
+#elif !defined(__GNUC__)
+#define __restrict
+#endif
+
 #define __NEED_size_t
 
 #include <bits/alltypes.h>
@@ -12,7 +18,7 @@ extern "C" {
 typedef void *iconv_t;
 
 iconv_t iconv_open(const char *, const char *);
-size_t iconv(iconv_t, char **, size_t *, char **, size_t *);
+size_t iconv(iconv_t, char **__restrict, size_t *__restrict, char **__restrict, size_t *__restrict);
 int iconv_close(iconv_t);
 
 #ifdef __cplusplus