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Create rb_darray_calloc_mul_add

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This commit is contained in:
Peter Zhu 2024-12-24 17:51:14 -05:00
parent 2e3b2d5eb2
commit e596516182
Notes: git 2025-01-02 16:03:25 +00:00 
Merged: https://github.com/ruby/ruby/pull/12459
1 changed files with 13 additions and 1 deletions
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14
darray.h
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@ -91,7 +91,7 @@
*/
#define rb_darray_make(ptr_to_ary, size) \
rb_darray_make_impl((ptr_to_ary), size, sizeof(**(ptr_to_ary)), \
sizeof((*(ptr_to_ary))->data[0]), rb_xcalloc_mul_add)
sizeof((*(ptr_to_ary))->data[0]), rb_darray_calloc_mul_add)
#define rb_darray_make_without_gc(ptr_to_ary, size) \
rb_darray_make_impl((ptr_to_ary), size, sizeof(**(ptr_to_ary)), \
@ -163,6 +163,18 @@ rb_darray_free_without_gc(void *ary)
free(ary);
}
/* Internal function. Like rb_xcalloc_mul_add. */
static inline void *
rb_darray_calloc_mul_add(size_t x, size_t y, size_t z)
{
size_t size = rbimpl_size_add_or_raise(rbimpl_size_mul_or_raise(x, y), z);
void *ptr = xcalloc(1, size);
RUBY_ASSERT(ptr != NULL);
return ptr;
}
/* Internal function. Like rb_xcalloc_mul_add but does not trigger GC. */
static inline void *
rb_darray_calloc_mul_add_without_gc(size_t x, size_t y, size_t z)