diff options
Diffstat (limited to 'components/libc/compilers/minilibc/rand.c')
| -rw-r--r-- | components/libc/compilers/minilibc/rand.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/components/libc/compilers/minilibc/rand.c b/components/libc/compilers/minilibc/rand.c index 88603dc808..8bbf42a32b 100644 --- a/components/libc/compilers/minilibc/rand.c +++ b/components/libc/compilers/minilibc/rand.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2006-2018, RT-Thread Development Team + * Copyright (c) 2006-2021, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * @@ -13,10 +13,10 @@ static unsigned int _seed=1; /* Knuth's TAOCP section 3.6 */ -#define M ((1U<<31) -1) -#define A 48271 -#define Q 44488 // M/A -#define R 3399 // M%A; R < Q !!! +#define M ((1U<<31) -1) +#define A 48271 +#define Q 44488 // M/A +#define R 3399 // M%A; R < Q !!! int rand_r(unsigned int* seed) { int32_t X; @@ -24,7 +24,7 @@ int rand_r(unsigned int* seed) X = *seed; X = A*(X%Q) - R * (int32_t) (X/Q); if (X < 0) - X += M; + X += M; *seed = X; return X; @@ -35,8 +35,8 @@ int rand(void) { } void srand(unsigned int i) -{ - _seed=i; +{ + _seed=i; } int random(void) __attribute__((alias("rand"))); |