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* ext/bigdecimal/bigdecimal.c (BigDecimalCmp): use GetVpValueWithPrec

Browse source 
for Float and Rational arguments.
* test/bigdecimal/test_bigdecimal.rb (test_new, test_cmp, test_power):
  add and modify tests for the above change.
* ext/bigdecimal/bigdecimal.c (BigDecimalCmp): modify coding style to
  match ruby's standard.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32052 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
mrkn 2011-06-13 09:51:48 +00:00
parent 58bae71a7b
commit 3bd8b390de
3 changed files with 93 additions and 21 deletions
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11
ChangeLog
View file

@ -1,3 +1,14 @@
Mon Jun 13 18:49:00 2011 Kenta Murata <mrkn@mrkn.jp>
* ext/bigdecimal/bigdecimal.c (BigDecimalCmp): use GetVpValueWithPrec
for Float and Rational arguments.
* test/bigdecimal/test_bigdecimal.rb (test_new, test_cmp, test_power):
add and modify tests for the above change.
* ext/bigdecimal/bigdecimal.c (BigDecimalCmp): modify coding style to
match ruby's standard.
Mon Jun 13 18:33:04 2011 Tanaka Akira <akr@fsij.org>
* lib/securerandom.rb (SecureRandom.random_bytes): modify PRNG state

94
ext/bigdecimal/bigdecimal.c
View file

@ -794,34 +794,90 @@ BigDecimalCmp(VALUE self, VALUE r,char op)
{
ENTER(5);
SIGNED_VALUE e;
Real *a, *b;
Real *a, *b=0;
GUARD_OBJ(a,GetVpValue(self,1));
b = GetVpValue(r,0);
if(!b) {
switch (TYPE(r)) {
case T_DATA:
if (!rb_typeddata_is_kind_of(r, &BigDecimal_data_type)) break;
/* fall through */
case T_FIXNUM:
/* fall through */
case T_BIGNUM:
GUARD_OBJ(b, GetVpValue(r,0));
break;
case T_FLOAT:
GUARD_OBJ(b, GetVpValueWithPrec(r, DBL_DIG+1, 0));
break;
case T_RATIONAL:
GUARD_OBJ(b, GetVpValueWithPrec(r, a->Prec*VpBaseFig(), 0));
break;
default:
break;
}
if (b == NULL) {
ID f = 0;
switch(op)
{
case '*': return rb_num_coerce_cmp(self,r,rb_intern("<=>"));
case '=': return RTEST(rb_num_coerce_cmp(self,r,rb_intern("=="))) ? Qtrue : Qfalse;
case 'G': f = rb_intern(">="); break;
case 'L': f = rb_intern("<="); break;
case '>': case '<': f = (ID)op; break;
switch (op) {
case '*':
return rb_num_coerce_cmp(self, r, rb_intern("<=>"));
case '=':
return RTEST(rb_num_coerce_cmp(self, r, rb_intern("=="))) ? Qtrue : Qfalse;
case 'G':
f = rb_intern(">=");
break;
case 'L':
f = rb_intern("<=");
break;
case '>':
/* fall through */
case '<':
f = (ID)op;
break;
default:
break;
}
return rb_num_coerce_relop(self, r, f);
}
SAVE(b);
e = VpComp(a, b);
if(e==999) return (op == '*') ? Qnil : Qfalse;
switch(op)
{
case '*': return INT2FIX(e); /* any op */
case '=': if(e==0) return Qtrue ; return Qfalse;
case 'G': if(e>=0) return Qtrue ; return Qfalse;
case '>': if(e> 0) return Qtrue ; return Qfalse;
case 'L': if(e<=0) return Qtrue ; return Qfalse;
case '<': if(e< 0) return Qtrue ; return Qfalse;
if (e == 999)
return (op == '*') ? Qnil : Qfalse;
switch (op) {
case '*':
return INT2FIX(e); /* any op */
case '=':
if(e==0) return Qtrue;
return Qfalse;
case 'G':
if(e>=0) return Qtrue;
return Qfalse;
case '>':
if(e> 0) return Qtrue;
return Qfalse;
case 'L':
if(e<=0) return Qtrue;
return Qfalse;
case '<':
if(e< 0) return Qtrue;
return Qfalse;
default:
break;
}
rb_bug("Undefined operation in BigDecimalCmp()");
}

7
test/bigdecimal/test_bigdecimal.rb
View file

@ -56,6 +56,7 @@ class TestBigDecimal < Test::Unit::TestCase
assert_equal(1, BigDecimal.new(" 1 "))
assert_equal(111, BigDecimal.new("1_1_1_"))
assert_equal(0, BigDecimal.new("_1_1_1"))
assert_equal(10**(-1), BigDecimal.new("1E-1"), '#4825')
BigDecimal.mode(BigDecimal::EXCEPTION_OVERFLOW, false)
BigDecimal.mode(BigDecimal::EXCEPTION_NaN, false)
@ -351,6 +352,9 @@ class TestBigDecimal < Test::Unit::TestCase
inf = BigDecimal.new("Infinity")
assert_operator(inf, :>, 1)
assert_operator(1, :<, inf)
assert_operator(BigDecimal("1E-1"), :==, 10**(-1), '#4825')
assert_equal(0, BigDecimal("1E-1") <=> 10**(-1), '#4825')
end
def test_cmp_nan
@ -763,7 +767,8 @@ class TestBigDecimal < Test::Unit::TestCase
def test_power
x = BigDecimal.new("3")
assert_equal(81, x ** 4)
assert_equal(1.0/81, x ** -4)
assert_equal(1.0/81, (x ** -4).to_f)
assert_equal(1.quo(81), x ** -4)
assert_equal(1, x ** 0)
assert_raise(TypeError) { x ** x }
assert_equal(0, BigDecimal.new("0") ** 4)