зеркало из https://github.com/github/ruby.git
Родитель
9873af0b1a
Коммит
bcc2bb28b0
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@ -284,7 +284,7 @@ typedef uint128_t DSIZE_T;
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* @return A pointer on stack.
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*/
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#define ALLOCA_N(type,n) \
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RBIMPL_CAST((type *)alloca(rbimpl_size_mul_or_raise(sizeof(type), (n))))
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RBIMPL_CAST((type *)(!(n) ? NULL : alloca(rbimpl_size_mul_or_raise(sizeof(type), (n)))))
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/**
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* Identical to #RB_ALLOCV_N(), except it implicitly assumes the type of array
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@ -297,7 +297,7 @@ typedef uint128_t DSIZE_T;
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*/
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#define RB_ALLOCV(v, n) \
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((n) < RUBY_ALLOCV_LIMIT ? \
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((v) = 0, alloca(n)) : \
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((v) = 0, !(n) ? NULL : alloca(n)) : \
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rb_alloc_tmp_buffer(&(v), (n)))
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/**
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@ -330,7 +330,7 @@ typedef uint128_t DSIZE_T;
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#define RB_ALLOCV_N(type, v, n) \
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RBIMPL_CAST((type *) \
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(((size_t)(n) < RUBY_ALLOCV_LIMIT / sizeof(type)) ? \
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((v) = 0, alloca((n) * sizeof(type))) : \
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((v) = 0, !(n) ? NULL : alloca((n) * sizeof(type))) : \
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rb_alloc_tmp_buffer2(&(v), (n), sizeof(type))))
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/**
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7
random.c
7
random.c
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@ -365,15 +365,12 @@ rand_init(const rb_random_interface_t *rng, rb_random_t *rnd, VALUE seed)
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int sign;
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len = rb_absint_numwords(seed, 32, NULL);
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if (len == 0) len = 1;
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buf = ALLOCV_N(uint32_t, buf0, len);
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sign = rb_integer_pack(seed, buf, len, sizeof(uint32_t), 0,
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INTEGER_PACK_LSWORD_FIRST|INTEGER_PACK_NATIVE_BYTE_ORDER);
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if (sign < 0)
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sign = -sign;
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if (len == 0) {
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buf[0] = 0;
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len = 1;
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}
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if (len > 1) {
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if (sign != 2 && buf[len-1] == 1) /* remove leading-zero-guard */
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len--;
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@ -883,7 +880,7 @@ rand_mt_init(rb_random_t *rnd, const uint32_t *buf, size_t len)
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{
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struct MT *mt = &((rb_random_mt_t *)rnd)->mt;
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if (len <= 1) {
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init_genrand(mt, buf[0]);
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init_genrand(mt, len ? buf[0] : 0);
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}
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else {
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init_by_array(mt, buf, (int)len);
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