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- MFH: Add a comment why not ~0 or -1.

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This commit is contained in:
Derick Rethans 2007-09-06 13:28:05 +00:00
parent 09fbf87a6c
commit e280715150
1 changed files with 2 additions and 1 deletions
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3
ext/standard/basic_functions.c
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@ -4336,7 +4336,8 @@ PHP_FUNCTION(ip2long)
if (Z_STRLEN_PP(str) == 0 || (ip = inet_addr(Z_STRVAL_PP(str))) == INADDR_NONE) {
/* the only special case when we should return -1 ourselves,
* because inet_addr() considers it wrong.
* because inet_addr() considers it wrong. We return 0xFFFFFFFF and
* not -1 or ~0 because of 32/64bit issues.
*/
if (Z_STRLEN_PP(str) == sizeof("255.255.255.255") - 1 &&
!memcmp(Z_STRVAL_PP(str), "255.255.255.255", sizeof("255.255.255.255") - 1)) {