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Revert "Use ffsl() in ALLOCM_ALIGN()."

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This reverts commit 722b370399.

Unfortunately, glibc requires _GNU_SOURCE to be defined before including
string.h, but there is no reliable way to get the prototype within
jemalloc.h unless _GNU_SOURCE was already defined.
This commit is contained in:
Jason Evans 2012-04-04 15:24:01 -07:00
parent 3cc1f1aa69
commit bbe53b1c16
1 changed files with 6 additions and 1 deletions
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7
include/jemalloc/jemalloc.h.in
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@ -4,6 +4,7 @@
extern "C" {
#endif
#include <limits.h>
#include <strings.h>
#define JEMALLOC_VERSION "@jemalloc_version@"
@ -17,7 +18,11 @@ extern "C" {
#ifdef JEMALLOC_EXPERIMENTAL
#define ALLOCM_LG_ALIGN(la) (la)
#define ALLOCM_ALIGN(a) (ffsl(a)-1)
#if LG_SIZEOF_PTR == 2
#define ALLOCM_ALIGN(a) (ffs(a)-1)
#else
#define ALLOCM_ALIGN(a) ((a < (size_t)INT_MAX) ? ffs(a)-1 : ffs(a>>32)+31)
#endif
#define ALLOCM_ZERO ((int)0x40)
#define ALLOCM_NO_MOVE ((int)0x80)