musl - musl - an implementation of the standard library for Linux-based systems

musl - an implementation of the standard library for Linux-based systems

diff options

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--

-rw-r--r--

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;

}

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