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Log2 defined in c99 (not c90), not available on windows.

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 Change: 186680
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This commit is contained in:
Gareth Rees 2014-06-18 17:43:28 +01:00
parent 36fe333499
commit 2ca249915e
1 changed files with 2 additions and 2 deletions
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4
mps/code/testlib.c
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@ -12,7 +12,7 @@
#include "mps.h"
#include "misc.h" /* for NOOP */
#include <math.h> /* fmod, log2 */
#include <math.h> /* fmod, log */
#include <stdio.h> /* fflush, printf, stderr, sscanf, vfprintf */
#include <stdlib.h> /* abort, exit, getenv */
#include <time.h> /* time */
@ -224,7 +224,7 @@ size_t rnd_grain(size_t arena_size)
{
/* The grain size must be small enough to allow for a complete set
* of zones in the initial chunk. */
size_t s = (size_t)log2((double)arena_size);
size_t s = (size_t)(log((double)arena_size) / log(2.0));
Insist(s > MPS_WORD_SHIFT);
return (size_t)1 << (rnd() % (s - MPS_WORD_SHIFT));
}