diff options
Diffstat (limited to 'libc-top-half/musl/src/prng/rand.c')
-rw-r--r-- | libc-top-half/musl/src/prng/rand.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/prng/rand.c b/libc-top-half/musl/src/prng/rand.c new file mode 100644 index 0000000..c000cd2 --- /dev/null +++ b/libc-top-half/musl/src/prng/rand.c @@ -0,0 +1,15 @@ +#include <stdlib.h> +#include <stdint.h> + +static uint64_t seed; + +void srand(unsigned s) +{ + seed = s-1; +} + +int rand(void) +{ + seed = 6364136223846793005ULL*seed + 1; + return seed>>33; +} |