matter.c

Cross-platform minimalist libc
git clone git://git.finwo.net/lib/matter.c
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rand.c (183B)

      1 #include <stdlib.h>
      2 #include <stdint.h>
      3 
      4 static uint64_t seed;
      5 
      6 void srand(unsigned s) {
      7 	seed = s-1;
      8 }
      9 
     10 int rand(void) {
     11 	seed = 6364136223846793005ULL*seed + 1;
     12 	return seed>>33;
     13 }