I make some small test.
http://martin.m-core.net/misc/php/dehex.c - source code
cc dehex.c; for i in `seq 1 1000`; do ./a.out >> dehex.log; done
http://martin.m-core.net/misc/php/dehex.log - results
I ignore values greater than 4e9. And here is summary:
http://martin.m-core.net/misc/php/dehex.php
Source of PHP script: http://martin.m-core.net/misc/php/dehex.phps
So, m1 is very slow, but other ones are faster.
Martin Majlis
On 25/05/07, Martin Majlis <[EMAIL PROTECTED]> wrote:
Just small refactoring. Replacing self-made function with functions
from standard headers.
Index: JSON_parser.c
===================================================================
RCS file: /repository/php-src/ext/json/JSON_parser.c,v
retrieving revision 1.1.2.8
diff -u -u -r1.1.2.8 JSON_parser.c
--- JSON_parser.c 24 May 2007 22:37:59 -0000 1.1.2.8
+++ JSON_parser.c 24 May 2007 23:41:11 -0000
@@ -29,6 +29,8 @@
#include "JSON_parser.h"
#include <stdio.h>
+#include <math.h>
+#include <ctype.h>
#define true 1
#define false 0
@@ -259,18 +261,10 @@
static int dehexchar(char c)
{
- if (c >= '0' && c <= '9')
- {
- return c - '0';
- }
- else if (c >= 'A' && c <= 'F')
- {
- return c - ('A' - 10);
- }
- else if (c >= 'a' && c <= 'f')
- {
- return c - ('a' - 10);
- }
+ if (isxdigit(c))
+ {
+ return strtol(&c, NULL, 16);
+ }
else
{
return -1;
--
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