зеркало из https://github.com/github/ruby.git
* bignum.c (rb_big_fdiv): flo.fdiv(NaN) should result NaN.
* numeric.c (num_quo): renamed and moved from bignum.c. [ruby-dev:34582] * bignum.c (rb_big_fdiv): update RDoc description * rational.c (nurat_s_new_m): small refactoring. * bignum.c (rb_big2dbl): no need for forceful warning when converting to float. overflow is a nature of float values. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@16308 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
matz
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14
ChangeLog
14
ChangeLog
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@ -1,3 +1,17 @@
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Wed May 7 13:02:56 2008 Yukihiro Matsumoto <matz@ruby-lang.org>
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* bignum.c (rb_big_fdiv): flo.fdiv(NaN) should result NaN.
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* numeric.c (num_quo): renamed and moved from bignum.c.
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[ruby-dev:34582]
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* bignum.c (rb_big_fdiv): update RDoc description
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* rational.c (nurat_s_new_m): small refactoring.
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* bignum.c (rb_big2dbl): no need for forceful warning when
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converting to float. overflow is a nature of float values.
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Wed May 7 00:54:25 2008 Yukihiro Matsumoto <matz@ruby-lang.org>
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* ext/zlib/zlib.c (gzreader_gets): may cause infinite loop.
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17
bignum.c
17
bignum.c
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@ -1219,7 +1219,7 @@ rb_big2dbl(VALUE x)
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double d = big2dbl(x);
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if (isinf(d)) {
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rb_warn("Bignum out of Float range");
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rb_warning("Bignum out of Float range");
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d = HUGE_VAL;
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}
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return d;
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@ -1975,23 +1975,16 @@ static VALUE big_shift(VALUE x, int n)
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/*
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* call-seq:
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* big.quo(numeric) -> float
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* big.fdiv(numeric) -> float
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* big.fdiv(numeric) -> float
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*
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* Returns the floating point result of dividing <i>big</i> by
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* <i>numeric</i>.
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*
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* -1234567890987654321.quo(13731) #=> -89910996357705.5
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* -1234567890987654321.quo(13731.24) #=> -89909424858035.7
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* -1234567890987654321.fdiv(13731) #=> -89910996357705.5
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* -1234567890987654321.fdiv(13731.24) #=> -89909424858035.7
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*
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*/
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static VALUE
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rb_big_quo(VALUE x, VALUE y)
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{
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return rb_funcall(rb_rational_raw1(x), '/', 1, rb_Rational1(y));
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}
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static VALUE
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rb_big_fdiv(VALUE x, VALUE y)
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{
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@ -2021,6 +2014,7 @@ rb_big_fdiv(VALUE x, VALUE y)
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return DOUBLE2NUM(ldexp(big2dbl(z), ex - ey));
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}
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case T_FLOAT:
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if (isnan(RFLOAT_VALUE(y))) return y;
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y = dbl2big(ldexp(frexp(RFLOAT_VALUE(y), &ey), DBL_MANT_DIG));
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ey -= DBL_MANT_DIG;
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goto bignum;
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@ -2688,7 +2682,6 @@ Init_Bignum(void)
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rb_define_method(rb_cBignum, "divmod", rb_big_divmod, 1);
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rb_define_method(rb_cBignum, "modulo", rb_big_modulo, 1);
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rb_define_method(rb_cBignum, "remainder", rb_big_remainder, 1);
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rb_define_method(rb_cBignum, "quo", rb_big_quo, 1);
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rb_define_method(rb_cBignum, "fdiv", rb_big_fdiv, 1);
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rb_define_method(rb_cBignum, "**", rb_big_pow, 1);
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rb_define_method(rb_cBignum, "&", rb_big_and, 1);
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17
numeric.c
17
numeric.c
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@ -249,15 +249,14 @@ num_uminus(VALUE num)
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/*
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* call-seq:
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* num.quo(numeric) => result
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* num.fdiv(numeric) => result
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*
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* Equivalent to <code>Numeric#/</code>, but overridden in subclasses.
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* Returns most exact division (rational for integers, float for floats).
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*/
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static VALUE
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num_quo(VALUE x, VALUE y)
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{
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return rb_funcall(x, '/', 1, y);
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return rb_funcall(rb_rational_raw1(x), '/', 1, y);
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}
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@ -2215,23 +2214,16 @@ fixdivmod(long x, long y, long *divp, long *modp)
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/*
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* call-seq:
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* fix.quo(numeric) => float
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* fix.fdiv(numeric) => float
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*
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* Returns the floating point result of dividing <i>fix</i> by
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* <i>numeric</i>.
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*
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* 654321.quo(13731) #=> 47.6528293642124
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* 654321.quo(13731.24) #=> 47.6519964693647
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* 654321.fdiv(13731) #=> 47.6528293642124
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* 654321.fdiv(13731.24) #=> 47.6519964693647
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*
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*/
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static VALUE
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fix_quo(VALUE x, VALUE y)
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{
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return rb_funcall(rb_rational_raw1(x), '/', 1, y);
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}
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static VALUE
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fix_fdiv(VALUE x, VALUE y)
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{
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@ -3225,7 +3217,6 @@ Init_Numeric(void)
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rb_define_method(rb_cFixnum, "%", fix_mod, 1);
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rb_define_method(rb_cFixnum, "modulo", fix_mod, 1);
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rb_define_method(rb_cFixnum, "divmod", fix_divmod, 1);
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rb_define_method(rb_cFixnum, "quo", fix_quo, 1);
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rb_define_method(rb_cFixnum, "fdiv", fix_fdiv, 1);
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rb_define_method(rb_cFixnum, "**", fix_pow, 1);
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40
rational.c
40
rational.c
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@ -500,10 +500,8 @@ nurat_s_canonicalize(int argc, VALUE *argv, VALUE klass)
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{
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VALUE num, den;
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switch (rb_scan_args(argc, argv, "11", &num, &den)) {
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case 1:
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if (rb_scan_args(argc, argv, "11", &num, &den) == 1) {
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den = ONE;
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break;
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}
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nurat_int_check(num);
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@ -514,22 +512,25 @@ nurat_s_canonicalize(int argc, VALUE *argv, VALUE klass)
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#endif
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static VALUE
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nurat_s_new(int argc, VALUE *argv, VALUE klass)
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nurat_s_new(VALUE klass, VALUE num, VALUE den)
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{
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VALUE num, den;
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switch (rb_scan_args(argc, argv, "11", &num, &den)) {
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case 1:
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den = ONE;
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break;
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}
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nurat_int_check(num);
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nurat_int_check(den);
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return nurat_s_canonicalize_internal(klass, num, den);
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}
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static VALUE
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nurat_s_new_m(int argc, VALUE *argv, VALUE klass)
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{
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VALUE num, den;
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if (rb_scan_args(argc, argv, "11", &num, &den) == 1) {
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den = ONE;
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}
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return nurat_s_new(klass, num, den);
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}
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inline static VALUE
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f_rational_new1(VALUE klass, VALUE x)
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{
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@ -1425,9 +1426,9 @@ nurat_s_convert(int argc, VALUE *argv, VALUE klass)
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{
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VALUE a1, a2;
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a1 = Qnil;
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a2 = Qnil;
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rb_scan_args(argc, argv, "02", &a1, &a2);
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if (rb_scan_args(argc, argv, "02", &a1, &a2) == 1) {
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a2 = ONE;
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}
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switch (TYPE(a1)) {
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case T_COMPLEX:
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@ -1486,12 +1487,7 @@ nurat_s_convert(int argc, VALUE *argv, VALUE klass)
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return f_div(a1, a2);
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}
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{
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VALUE argv2[2];
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argv2[0] = a1;
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argv2[1] = a2;
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return nurat_s_new(argc, argv2, klass);
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}
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return nurat_s_new(klass, a1, a2);
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}
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static VALUE
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@ -1533,7 +1529,7 @@ Init_Rational(void)
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rb_funcall(rb_cRational, rb_intern("private_class_method"), 1,
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ID2SYM(rb_intern("new!")));
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rb_define_singleton_method(rb_cRational, "new", nurat_s_new, -1);
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rb_define_singleton_method(rb_cRational, "new", nurat_s_new_m, -1);
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rb_funcall(rb_cRational, rb_intern("private_class_method"), 1,
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ID2SYM(rb_intern("new")));
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@ -263,14 +263,14 @@ class TestBignum < Test::Unit::TestCase
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assert_equal(T32.to_f, T32.quo(1.0))
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assert_equal(T32.to_f, T32.quo(T_ONE))
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assert_raise(ArgumentError) { T32.quo("foo") }
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assert_raise(TypeError) { T32.quo("foo") }
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assert_equal(1024**1024, (1024**1024).quo(1))
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assert_equal(1024**1024, (1024**1024).quo(1.0))
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assert_equal(1024**1024*2, (1024**1024*2).quo(1))
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inf = 1 / 0.0; nan = inf / inf
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assert_raise(FloatDomainError) { (1024**1024*2).quo(nan) }
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assert((1024**1024*2).quo(nan).nan?)
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end
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def test_pow
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@ -51,16 +51,7 @@ class TestNumeric < Test::Unit::TestCase
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end
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def test_quo
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DummyNumeric.class_eval do
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def /(x); :div; end
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end
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assert_equal(:div, DummyNumeric.new.quo(0))
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ensure
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DummyNumeric.class_eval do
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remove_method :/
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end
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assert_raise(ArgumentError) {DummyNumeric.new.quo(1)}
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end
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def test_divmod
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