diff options
Diffstat (limited to 'newlib/libc/stdlib/rand.c')
| -rw-r--r-- | newlib/libc/stdlib/rand.c | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/newlib/libc/stdlib/rand.c b/newlib/libc/stdlib/rand.c index 6a46aa807..a085ef37c 100644 --- a/newlib/libc/stdlib/rand.c +++ b/newlib/libc/stdlib/rand.c @@ -51,8 +51,8 @@ number between <<0>> and <<RAND_MAX>> (inclusive). <<srand>> does not return a result. NOTES -<<rand>> and <<srand>> are unsafe for multi-threaded applications. -<<rand_r>> is thread-safe and should be used instead. +<<rand>> and <<srand>> are unsafe for multi-thread applications. +<<rand_r>> is MT-Safe and should be used instead. PORTABILITY @@ -72,7 +72,7 @@ on two different systems. void _DEFUN (srand, (seed), unsigned int seed) { - _REENT_RAND_NEXT(_REENT) = seed; + _REENT->_new._reent._rand_next = seed; } int @@ -81,10 +81,9 @@ _DEFUN_VOID (rand) /* This multiplier was obtained from Knuth, D.E., "The Art of Computer Programming," Vol 2, Seminumerical Algorithms, Third Edition, Addison-Wesley, 1998, p. 106 (line 26) & p. 108 */ - _REENT_CHECK_RAND48(_REENT); - _REENT_RAND_NEXT(_REENT) = - _REENT_RAND_NEXT(_REENT) * __extension__ 6364136223846793005LL + 1; - return (int)((_REENT_RAND_NEXT(_REENT) >> 32) & RAND_MAX); + _REENT->_new._reent._rand_next = + _REENT->_new._reent._rand_next * __extension__ 6364136223846793005LL + 1; + return (int)((_REENT->_new._reent._rand_next >> 32) & RAND_MAX); } #endif /* _REENT_ONLY */ |