From: signe at cothlamadh dot net Operating system: FreeBSD 64-bit, Linux 64-bit PHP version: 5.2.9 PHP Bug Type: Unknown/Other Function Bug description: sscanf does not support 64-bit values
Description: ------------ On 64-bit operating systems, printf()'s %d and %u formatting codes support 64-bit integers. sscanf, which supposedly uses the same code (and has the same expected behavior) does not support 64-bit values. Also, printf is not outputting accurate values when it reaches numbers near the upper bounds of a 64-bit int. Reproduce code: --------------- <?php sscanf("2147483647", '%d', $int); echo "sscanf 32-bit signed int '2147483647' (2^31)-1 = ",$int,"\n"; sscanf("4294967295", '%u', $int); echo "sscanf 32-bit unsign int '4294967295' (2^32)-1 = ",$int,"\n"; sscanf("9223372036854775807", '%d', $int); echo "sscanf 64-bit signed int '9223372036854775807' (2^63)-1 = ",$int,"\n"; sscanf("18446744073709551615", '%u', $int); echo "sscanf 64-bit unsign int '18446744073709551615' (2^64)-1 = ",$int,"\n"; printf("printf 64-bit signed int '9223372036854775807' (2^63)-1 = %d\n", 9223372036854775807); printf("printf 64-bit signed int '18446744073709551615' (2^64)-1 = %u\n", 18446744073709551615); echo "\n(2^64)-1 - 100,000,000\n"; printf("printf 64-bit signed int '18446744073609551615' = %u\n", 18446744073609551615); echo "Output is 257 greater than input\n"; ?> Expected result: ---------------- sscanf 32-bit signed int '2147483647' (2^31)-1 = 2147483647 sscanf 32-bit unsign int '4294967295' (2^32)-1 = 4294967295 sscanf 64-bit signed int '9223372036854775807' (2^63)-1 = 9223372036854775807 sscanf 64-bit unsign int '18446744073709551615' (2^64)-1 = 18446744073709551615 printf 64-bit signed int '9223372036854775807' (2^63)-1 = 9223372036854775807 printf 64-bit signed int '18446744073709551615' (2^64)-1 = 18446744073709551615 Actual result: -------------- sscanf 32-bit signed int '2147483647' (2^31)-1 = 2147483647 sscanf 32-bit unsign int '4294967295' (2^32)-1 = 4294967295 sscanf 64-bit signed int '9223372036854775807' (2^63)-1 = -1 sscanf 64-bit unsign int '18446744073709551615' (2^64)-1 = 4294967295 printf 64-bit signed int '9223372036854775807' (2^63)-1 = 9223372036854775807 printf 64-bit signed int '18446744073709551615' (2^64)-1 = 0 printf 64-bit signed int '18446744073609551615' ((2^64)-1 - 100000000) = 18446744073609551872 Output is 257 greater than input -- Edit bug report at http://bugs.php.net/?id=47842&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=47842&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=47842&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=47842&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=47842&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=47842&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=47842&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=47842&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=47842&r=needscript Try newer version: http://bugs.php.net/fix.php?id=47842&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=47842&r=support Expected behavior: http://bugs.php.net/fix.php?id=47842&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=47842&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=47842&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=47842&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=47842&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=47842&r=dst IIS Stability: http://bugs.php.net/fix.php?id=47842&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=47842&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=47842&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=47842&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=47842&r=mysqlcfg