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authorSzabolcs Nagy <nsz@port70.net>2013-06-08 13:49:12 +0000
committerSzabolcs Nagy <nsz@port70.net>2013-06-08 13:49:12 +0000
commit0996faa3d789dd69e4c1c022757f0623908b0df5 (patch)
tree78e677b1897dc9013023fdc0f3d98daade8a7625 /src
parentc79cd27e9e81eb5e223728094f1233ee2fc12dda (diff)
downloadmusl-0996faa3d789dd69e4c1c022757f0623908b0df5.tar.gz
prng: make rand_r have 2^32 period instead of 2^31
this is a minor fix to increase the period of the obsolete rand_r a bit. an include header in __rand48_step.c is fixed as well.
Diffstat (limited to 'src')
-rw-r--r--src/prng/__rand48_step.c2
-rw-r--r--src/prng/rand_r.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/src/prng/__rand48_step.c b/src/prng/__rand48_step.c
index 755b4f2f..105f810f 100644
--- a/src/prng/__rand48_step.c
+++ b/src/prng/__rand48_step.c
@@ -1,5 +1,5 @@
#include <stdlib.h>
-#include <inttypes.h>
+#include <stdint.h>
uint64_t __rand48_step(unsigned short *xi, unsigned short *lc)
{
diff --git a/src/prng/rand_r.c b/src/prng/rand_r.c
index e96cfba9..ef26dbde 100644
--- a/src/prng/rand_r.c
+++ b/src/prng/rand_r.c
@@ -2,5 +2,5 @@
int rand_r(unsigned *seed)
{
- return (*seed = *seed * 1103515245 + 12345) & 0x7fffffff;
+ return (*seed = *seed * 1103515245 + 12345)/2;
}