diff options
Diffstat (limited to 'stdlib/random_r.c')
| -rw-r--r-- | stdlib/random_r.c | 29 |
1 files changed, 13 insertions, 16 deletions
diff --git a/stdlib/random_r.c b/stdlib/random_r.c index e955ea576a..404006f2cd 100644 --- a/stdlib/random_r.c +++ b/stdlib/random_r.c @@ -236,23 +236,20 @@ __initstate_r (seed, arg_state, n, buf) size_t n; struct random_data *buf; { - int type; - int degree; - int separation; - int32_t *state; - int old_type; - int32_t *old_state; - if (buf == NULL) goto fail; - old_type = buf->rand_type; - old_state = buf->state; - if (old_type == TYPE_0) - old_state[-1] = TYPE_0; - else - old_state[-1] = (MAX_TYPES * (buf->rptr - old_state)) + old_type; + int32_t *old_state = buf->state; + if (old_state != NULL) + { + int old_type = buf->rand_type; + if (old_type == TYPE_0) + old_state[-1] = TYPE_0; + else + old_state[-1] = (MAX_TYPES * (buf->rptr - old_state)) + old_type; + } + int type; if (n >= BREAK_3) type = n < BREAK_4 ? TYPE_3 : TYPE_4; else if (n < BREAK_1) @@ -267,13 +264,13 @@ __initstate_r (seed, arg_state, n, buf) else type = n < BREAK_2 ? TYPE_1 : TYPE_2; - degree = random_poly_info.degrees[type]; - separation = random_poly_info.seps[type]; + int degree = random_poly_info.degrees[type]; + int separation = random_poly_info.seps[type]; buf->rand_type = type; buf->rand_sep = separation; buf->rand_deg = degree; - state = &((int32_t *) arg_state)[1]; /* First location. */ + int32_t *state = &((int32_t *) arg_state)[1]; /* First location. */ /* Must set END_PTR before srandom. */ buf->end_ptr = &state[degree]; |