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newobj_fill: don't assume RBasic size

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The previous implementation assumed `RBasic` size is `2 * sizeof(VALUE)`,
might as well not make assumption and use a proper `sizeof`.

Co-Authored-By: John Hawthorn <john@hawthorn.email>
This commit is contained in:
Jean Boussier 2025-05-15 12:29:54 +02:00
parent 186e60cb68
commit 3d1b8e7298
Notes: git 2025-05-15 11:26:38 +00:00 
Merged: https://github.com/ruby/ruby/pull/13348
1 changed files with 4 additions and 4 deletions
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8
gc/default/default.c
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@ -2073,10 +2073,10 @@ heap_prepare(rb_objspace_t *objspace, rb_heap_t *heap)
static inline VALUE
newobj_fill(VALUE obj, VALUE v1, VALUE v2, VALUE v3)
{
VALUE *p = (VALUE *)obj;
p[2] = v1;
p[3] = v2;
p[4] = v3;
VALUE *p = (VALUE *)(obj + sizeof(struct RBasic));
p[0] = v1;
p[1] = v2;
p[2] = v3;
return obj;
}