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.

src/stdlib/strtod.c

@@ -16,17 +16,17 @@ static long double strtox(const char *s, char **p, int prec)
 	return y;
 }
 
-float strtof(const char *s, char **p)
+float strtof(const char *restrict s, char **restrict p)
 {
 	return strtox(s, p, 0);
 }
 
-double strtod(const char *s, char **p)
+double strtod(const char *restrict s, char **restrict p)
 {
 	return strtox(s, p, 1);
 }
 
-long double strtold(const char *s, char **p)
+long double strtold(const char *restrict s, char **restrict p)
 {
 	return strtox(s, p, 2);
 }

src/stdlib/strtol.c

@@ -22,32 +22,32 @@ static unsigned long long strtox(const char *s, char **p, int base, unsigned lon
 	return y;
 }
 
-unsigned long long strtoull(const char *s, char **p, int base)
+unsigned long long strtoull(const char *restrict s, char **restrict p, int base)
 {
 	return strtox(s, p, base, ULLONG_MAX);
 }
 
-long long strtoll(const char *s, char **p, int base)
+long long strtoll(const char *restrict s, char **restrict p, int base)
 {
 	return strtox(s, p, base, LLONG_MIN);
 }
 
-unsigned long strtoul(const char *s, char **p, int base)
+unsigned long strtoul(const char *restrict s, char **restrict p, int base)
 {
 	return strtox(s, p, base, ULONG_MAX);
 }
 
-long strtol(const char *s, char **p, int base)
+long strtol(const char *restrict s, char **restrict p, int base)
 {
 	return strtox(s, p, base, 0UL+LONG_MIN);
 }
 
-intmax_t strtoimax(const char *s, char **p, int base)
+intmax_t strtoimax(const char *restrict s, char **restrict p, int base)
 {
 	return strtoll(s, p, base);
 }
 
-uintmax_t strtoumax(const char *s, char **p, int base)
+uintmax_t strtoumax(const char *restrict s, char **restrict p, int base)
 {
 	return strtoull(s, p, base);
 }

src/stdlib/wcstod.c

@@ -47,17 +47,17 @@ static long double wcstox(const wchar_t *s, wchar_t **p, int prec)
 	return y;
 }
 
-float wcstof(const wchar_t *s, wchar_t **p)
+float wcstof(const wchar_t *restrict s, wchar_t **restrict p)
 {
 	return wcstox(s, p, 0);
 }
 
-double wcstod(const wchar_t *s, wchar_t **p)
+double wcstod(const wchar_t *restrict s, wchar_t **restrict p)
 {
 	return wcstox(s, p, 1);
 }
 
-long double wcstold(const wchar_t *s, wchar_t **p)
+long double wcstold(const wchar_t *restrict s, wchar_t **restrict p)
 {
 	return wcstox(s, p, 2);
 }

src/stdlib/wcstol.c

@@ -47,32 +47,32 @@ static unsigned long long wcstox(const wchar_t *s, wchar_t **p, int base, unsign
 	return y;
 }
 
-unsigned long long wcstoull(const wchar_t *s, wchar_t **p, int base)
+unsigned long long wcstoull(const wchar_t *restrict s, wchar_t **restrict p, int base)
 {
 	return wcstox(s, p, base, ULLONG_MAX);
 }
 
-long long wcstoll(const wchar_t *s, wchar_t **p, int base)
+long long wcstoll(const wchar_t *restrict s, wchar_t **restrict p, int base)
 {
 	return wcstox(s, p, base, LLONG_MIN);
 }
 
-unsigned long wcstoul(const wchar_t *s, wchar_t **p, int base)
+unsigned long wcstoul(const wchar_t *restrict s, wchar_t **restrict p, int base)
 {
 	return wcstox(s, p, base, ULONG_MAX);
 }
 
-long wcstol(const wchar_t *s, wchar_t **p, int base)
+long wcstol(const wchar_t *restrict s, wchar_t **restrict p, int base)
 {
 	return wcstox(s, p, base, 0UL+LONG_MIN);
 }
 
-intmax_t wcstoimax(const wchar_t *s, wchar_t **p, int base)
+intmax_t wcstoimax(const wchar_t *restrict s, wchar_t **restrict p, int base)
 {
 	return wcstoll(s, p, base);
 }
 
-uintmax_t wcstoumax(const wchar_t *s, wchar_t **p, int base)
+uintmax_t wcstoumax(const wchar_t *restrict s, wchar_t **restrict p, int base)
 {
 	return wcstoull(s, p, base);
 }