Remove use of register keyword in headers

Author: shivammathur

Zend/zend_hash.h

@@ -45,7 +45,7 @@
 
 typedef ulong (*hash_func_t)(const char *arKey, uint nKeyLength);
 typedef int  (*compare_func_t)(const void *, const void * TSRMLS_DC);
-typedef void (*sort_func_t)(void *, size_t, register size_t, compare_func_t TSRMLS_DC);
+typedef void (*sort_func_t)(void *, size_t, size_t, compare_func_t TSRMLS_DC);
 typedef void (*dtor_func_t)(void *pDest);
 typedef void (*copy_ctor_func_t)(void *pElement);
 typedef void (*copy_ctor_param_func_t)(void *pElement, void *pParam);
@@ -268,7 +268,7 @@ ZEND_API void _zend_hash_splice(HashTable *ht, uint nDataSize, copy_ctor_func_t
 
 static inline ulong zend_inline_hash_func(const char *arKey, uint nKeyLength)
 {
-	register ulong hash = 5381;
+	ulong hash = 5381;
 
 	/* variant with the hash unrolled eight times */
 	for (; nKeyLength >= 8; nKeyLength -= 8) {
@@ -313,7 +313,7 @@ END_EXTERN_C()
 	zend_hash_init(ht, n, NULL, ZVAL_PTR_DTOR, persistent)
 
 #define ZEND_HANDLE_NUMERIC_EX(key, length, idx, func) do {					\
-	register const char *tmp = key;											\
+	const char *tmp = key;											\
 																			\
 	if (*tmp == '-') {														\
 		tmp++;																\

Zend/zend_operators.h

@@ -305,7 +305,7 @@ zend_memnstr(const char *haystack, const char *needle, int needle_len, char *end
 
 static inline const void *zend_memrchr(const void *s, int c, size_t n)
 {
-	register const unsigned char *e;
+	const unsigned char *e;
 
 	if (n <= 0) {
 		return NULL;

ext/standard/php_smart_str.h

@@ -98,7 +98,7 @@
 	smart_str_append_unsigned_ex((dest), (val), 0)
 
 #define smart_str_appendc_ex(dest, ch, what) do {					\
-	register size_t __nl;											\
+	size_t __nl;											\
 	smart_str_alloc4((dest), 1, (what), __nl);						\
 	(dest)->len = __nl;												\
 	((unsigned char *) (dest)->c)[(dest)->len - 1] = (ch);			\
@@ -114,7 +114,7 @@
 } while (0)
 
 #define smart_str_appendl_ex(dest, src, nlen, what) do {			\
-	register size_t __nl;											\
+	size_t __nl;											\
 	smart_str *__dest = (smart_str *) (dest);						\
 																	\
 	smart_str_alloc4(__dest, (nlen), (what), __nl);					\

main/php.h

@@ -334,7 +334,7 @@ END_EXTERN_C()
 BEGIN_EXTERN_C()
 PHPAPI extern int (*php_register_internal_extensions_func)(TSRMLS_D);
 PHPAPI int php_register_internal_extensions(TSRMLS_D);
-PHPAPI int php_mergesort(void *base, size_t nmemb, register size_t size, int (*cmp)(const void *, const void * TSRMLS_DC) TSRMLS_DC);
+PHPAPI int php_mergesort(void *base, size_t nmemb, size_t size, int (*cmp)(const void *, const void * TSRMLS_DC) TSRMLS_DC);
 PHPAPI void php_register_pre_request_shutdown(void (*func)(void *), void *userdata);
 PHPAPI void php_com_initialize(TSRMLS_D);
 PHPAPI char *php_get_current_user(TSRMLS_D);

main/snprintf.h

@@ -86,7 +86,7 @@ PHPAPI int ap_php_vasprintf(char **buf, const char *format, va_list ap);
 PHPAPI int ap_php_asprintf(char **buf, const char *format, ...);
 PHPAPI int php_sprintf (char* s, const char* format, ...) PHP_ATTRIBUTE_FORMAT(printf, 2, 3);
 PHPAPI char * php_gcvt(double value, int ndigit, char dec_point, char exponent, char *buf);
-PHPAPI char * php_conv_fp(register char format, register double num,
+PHPAPI char * php_conv_fp(char format, double num,
 		 boolean_e add_dp, int precision, char dec_point, bool_int * is_negative, char *buf, int *len);
 
 END_EXTERN_C()
@@ -152,11 +152,11 @@ typedef enum {
 typedef WIDE_INT wide_int;
 typedef unsigned WIDE_INT u_wide_int;
 
-PHPAPI char * ap_php_conv_10(register wide_int num, register bool_int is_unsigned,
-	   register bool_int * is_negative, char *buf_end, register int *len);
+PHPAPI char * ap_php_conv_10(wide_int num, bool_int is_unsigned,
+	   bool_int * is_negative, char *buf_end, int *len);
 
-PHPAPI char * ap_php_conv_p2(register u_wide_int num, register int nbits,
-		 char format, char *buf_end, register int *len);
+PHPAPI char * ap_php_conv_p2(u_wide_int num, int nbits,
+		 char format, char *buf_end, int *len);
 
 /* The maximum precision that's allowed for float conversion. Does not include
  * decimal separator, exponent, sign, terminator. Currently does not affect