Merge pull request #594 from AFLplusplus/dev

push to stable

1 files changed, 9 insertions, 1 deletions

diff --git a/src/afl-performance.c b/src/afl-performance.c
index 7a80ac4b..e070a05e 100644
--- a/src/afl-performance.c
+++ b/src/afl-performance.c
@@ -47,7 +47,7 @@ void rand_set_seed(afl_state_t *afl, s64 init_seed) {
 
 }
 
-uint64_t rand_next(afl_state_t *afl) {
+inline uint64_t rand_next(afl_state_t *afl) {
 
   const uint64_t result =
       rotl(afl->rand_seed[0] + afl->rand_seed[3], 23) + afl->rand_seed[0];
@@ -67,6 +67,14 @@ uint64_t rand_next(afl_state_t *afl) {
 
 }
 
+/* returns a double between 0.000000000 and 1.000000000 */
+
+inline double rand_next_percent(afl_state_t *afl) {
+
+  return (double)(((double)rand_next(afl)) / (double)0xffffffffffffffff);
+
+}
+
 /* This is the jump function for the generator. It is equivalent
    to 2^128 calls to rand_next(); it can be used to generate 2^128
    non-overlapping subsequences for parallel computations. */