From: Tyson Smith <tysmith@xxxxxxxxxxxx>
Since rand_bool is used a heavily used operation simplifying it may
shave off some cycles here and there. Also replaced %2 with &1 with the
same intention.
---
include/random.h | 3 ++-
random.c | 5 -----
2 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/include/random.h b/include/random.h
index 69ccfa3..b8f8d2c 100644
--- a/include/random.h
+++ b/include/random.h
@@ -13,6 +13,8 @@
#error "Unexpected RAND_MAX value. Please add support."
#endif
+#define rand_bool() (rand() & 1)
+
extern unsigned int seed;
unsigned int init_seed(unsigned int seed);
void set_seed(struct childdata *child);
@@ -20,7 +22,6 @@ void reseed(void);
unsigned int new_seed(void);
void generate_rand_bytes(unsigned char *ptr, unsigned int len);
-unsigned int rand_bool(void);
unsigned int rand32(void);
u64 rand64(void);
unsigned int rand_range(unsigned int min, unsigned int max);
diff --git a/random.c b/random.c
index 063912f..a1ff7a8 100644
--- a/random.c
+++ b/random.c
@@ -64,11 +64,6 @@ unsigned long set_rand_bitmask(unsigned int num, const unsigned long *values)
return mask;
}
-unsigned int rand_bool(void)
-{
- return rand() % 2;
-}
-
/*
* Pick a random power of two between 2^0 and 2^(__WORDSIZE-1)
*/
--
1.9.1
--
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