Re: [PHP4BETA] cvs: php4 /ext/session/ session.c

> strchr() should be the exception to the rule where mem_* functions are > faster than str_*. strchr: "compare every byte with C and '\0'. Stop at '\0'." memchr: "compare every byte with C. Stop when the counter is zero." That means strchr has to perform twice as many comparisons as memchr. The "maintaining a counter" in memchr is usually only a decrement and a conditional jump, so the cost of doing it is minimal, especially if you perform multiple comparisons with C in one pass as the glibc implementation does. - Sascha