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Make string embad from shared

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ksss committed May 13, 2017
1 parent 171e732 commit bdb36b3404c3af9a202a3a2ed16155a799b7fc0c
Showing with 10 additions and 3 deletions.
  1. +10 −3 src/string.c
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@@ -685,13 +685,20 @@ mrb_str_modify(mrb_state *mrb, struct RString *s)
p = RSTR_PTR(s);
len = s->as.heap.len;
ptr = (char *)mrb_malloc(mrb, (size_t)len + 1);
if (len < RSTRING_EMBED_LEN_MAX) {
RSTR_SET_EMBED_FLAG(s);
RSTR_SET_EMBED_LEN(s, len);
ptr = RSTR_PTR(s);
}
else {
ptr = (char *)mrb_malloc(mrb, (size_t)len + 1);
s->as.heap.ptr = ptr;
s->as.heap.aux.capa = len;
}
if (p) {
memcpy(ptr, p, len);
}
ptr[len] = '\0';
s->as.heap.ptr = ptr;
s->as.heap.aux.capa = len;
str_decref(mrb, shared);
}
RSTR_UNSET_SHARED_FLAG(s);

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