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authorRich Felker <dalias@aerifal.cx>2012-09-06 22:44:55 -0400
committerRich Felker <dalias@aerifal.cx>2012-09-06 22:44:55 -0400
commit400c5e5c8307a2ebe44ef1f203f5a15669f20347 (patch)
tree087a48dc8251fa05f6866af8ebf96b69450b15ab /include/stdlib.h
parentbac03cdde1137c16b4c194e137310e2748661dcc (diff)
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use restrict everywhere it's required by c99 and/or posix 2008
to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict.
Diffstat (limited to 'include/stdlib.h')
-rw-r--r--include/stdlib.h28
1 files changed, 17 insertions, 11 deletions
diff --git a/include/stdlib.h b/include/stdlib.h
index 1749cb3b..14cc71bb 100644
--- a/include/stdlib.h
+++ b/include/stdlib.h
@@ -5,6 +5,12 @@
extern "C" {
#endif
+#if __STDC_VERSION__ >= 199901L
+#define __restrict restrict
+#elif !defined(__GNUC__)
+#define __restrict
+#endif
+
#undef NULL
#ifdef __cplusplus
#define NULL 0
@@ -22,14 +28,14 @@ long atol (const char *);
long long atoll (const char *);
double atof (const char *);
-float strtof (const char *, char **);
-double strtod (const char *, char **);
-long double strtold (const char *, char **);
+float strtof (const char *__restrict, char **__restrict);
+double strtod (const char *__restrict, char **__restrict);
+long double strtold (const char *__restrict, char **__restrict);
-long strtol (const char *, char **, int);
-unsigned long strtoul (const char *, char **, int);
-long long strtoll (const char *, char **, int);
-unsigned long long strtoull (const char *, char **, int);
+long strtol (const char *__restrict, char **__restrict, int);
+unsigned long strtoul (const char *__restrict, char **__restrict, int);
+long long strtoll (const char *__restrict, char **__restrict, int);
+unsigned long long strtoull (const char *__restrict, char **__restrict, int);
int rand (void);
void srand (unsigned);
@@ -67,10 +73,10 @@ ldiv_t ldiv (long, long);
lldiv_t lldiv (long long, long long);
int mblen (const char *, size_t);
-int mbtowc (wchar_t *, const char *, size_t);
+int mbtowc (wchar_t *__restrict, const char *__restrict, size_t);
int wctomb (char *, wchar_t);
-size_t mbstowcs (wchar_t *, const char *, size_t);
-size_t wcstombs (char *, const wchar_t *, size_t);
+size_t mbstowcs (wchar_t *__restrict, const char *__restrict, size_t);
+size_t wcstombs (char *__restrict, const wchar_t *__restrict, size_t);
#define EXIT_FAILURE 1
#define EXIT_SUCCESS 0
@@ -108,7 +114,7 @@ int rand_r (unsigned *);
#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
|| defined(_BSD_SOURCE)
-char *realpath (const char *, char *);
+char *realpath (const char *__restrict, char *__restrict);
long int random (void);
void srandom (unsigned int);
char *initstate (unsigned int, char *, size_t);