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vm_args.c: fix KW_SPECIFIED_BITS_MAX

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* vm_args.c (KW_SPECIFIED_BITS_MAX): subtracted 1bit for
  FIXNUM_FLAG.  [ruby-core:84921] [Bug #14373]

* vm_insnhelper.c (vm_check_keyword): unsigned for bit operation.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61945 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2018-01-19 04:23:59 +00:00
parent 350c2ac453
commit 12c0cc0172
2 changed files with 2 additions and 2 deletions
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2
vm_args.c
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@ -392,7 +392,7 @@ args_setup_kw_parameters_lookup(const ID key, VALUE *ptr, const VALUE *const pas
return FALSE;
}
#define KW_SPECIFIED_BITS_MAX 32 /* TODO: 32 -> Fixnum's max bits */
#define KW_SPECIFIED_BITS_MAX (32-1) /* TODO: 32 -> Fixnum's max bits */
static void
args_setup_kw_parameters(rb_execution_context_t *const ec, const rb_iseq_t *const iseq,

2
vm_insnhelper.c
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@ -3026,7 +3026,7 @@ vm_check_keyword(lindex_t bits, lindex_t idx, const VALUE *ep)
const VALUE kw_bits = *(ep - bits);
if (FIXNUM_P(kw_bits)) {
int b = FIX2INT(kw_bits);
unsigned int b = (unsigned int)FIX2ULONG(kw_bits);
if ((idx < KW_SPECIFIED_BITS_MAX) && (b & (0x01 << idx)))
return Qfalse;
}