diff options
Diffstat (limited to 'libc-top-half/musl/src/prng/drand48.c')
-rw-r--r-- | libc-top-half/musl/src/prng/drand48.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/prng/drand48.c b/libc-top-half/musl/src/prng/drand48.c new file mode 100644 index 0000000..08283e2 --- /dev/null +++ b/libc-top-half/musl/src/prng/drand48.c @@ -0,0 +1,17 @@ +#include <stdlib.h> +#include <inttypes.h> +#include "rand48.h" + +double erand48(unsigned short s[3]) +{ + union { + uint64_t u; + double f; + } x = { 0x3ff0000000000000ULL | __rand48_step(s, __seed48+3)<<4 }; + return x.f - 1.0; +} + +double drand48(void) +{ + return erand48(__seed48); +} |