UINT16_MAX as symbol length is reserved; ref #2294

c4268f67 · Yukihiro "Matz" Matsumoto · 54c2dcf2 · c4268f67
Commit c4268f67 authored May 19, 2014 by Yukihiro "Matz" Matsumoto
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src/symbol.c src/symbol.c +1 -1

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--- a/src/symbol.c
+++ b/src/symbol.c
@@ -43,7 +43,7 @@ sym_intern(mrb_state *mrb, const char *name, size_t len, mrb_bool lit)
  mrb_sym sym;
  char *p;

-  if (len > UINT16_MAX) {
+  if (len > (UINT16_MAX-1)) {   /* UINT16_MAX is reverved */
    mrb_raise(mrb, E_ARGUMENT_ERROR, "symbol length too long");
  }
  sname.lit = lit;