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Merge pull request #5305 from dearblue/symbol0

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Check first `0` when converting symbols into strings
This commit is contained in:
Yukihiro "Matz" Matsumoto
2021-01-28 22:56:27 +09:00
committed by GitHub
parent bb42c1b286 3d8a8fb661
commit 0030417ace
1 changed files with 3 additions and 1 deletions
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src/symbol.c
+3 -1
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@@ -303,6 +303,7 @@ mrb_check_intern_str(mrb_state *mrb, mrb_value str)
static const char*
sym2name_len(mrb_state *mrb, mrb_sym sym, char *buf, mrb_int *lenp)
{
if (sym == 0) goto outofsym;
if (SYMBOL_INLINE_P(sym)) return sym_inline_unpack(sym, buf, lenp);
#ifndef MRB_NO_PRESYM
@@ -313,7 +314,8 @@ sym2name_len(mrb_state *mrb, mrb_sym sym, char *buf, mrb_int *lenp)
#endif
sym -= MRB_PRESYM_MAX;
if (sym == 0 || mrb->symidx < sym) {
if (mrb->symidx < sym) {
outofsym:
if (lenp) *lenp = 0;
return NULL;
}