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authorakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2013-09-06 12:07:08 +0000
committerakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2013-09-06 12:07:08 +0000
commit42a3e0dc55620664af3e6253f324711316b93934 (patch)
tree28c825e69d739e1f06d14f9f221974f6752d92c6 /ext/-test-/rational/rat.c
parent5aadc9d4ba39cfbdf0db64989bae945a165a0e65 (diff)
* rational.c: Include gmp.h if GMP is used.
(GMP_GCD_DIGITS): New macro. (rb_gcd_gmp): New function. (f_gcd_normal): Renamed from f_gcd. (rb_gcd_normal): New function. (f_gcd): Invoke rb_gcd_gmp or f_gcd_normal. * internal.h (rb_gcd_normal): Declared. (rb_gcd_gmp): Ditto. * ext/-test-/rational: New directory. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42858 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/-test-/rational/rat.c')
-rw-r--r--ext/-test-/rational/rat.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/ext/-test-/rational/rat.c b/ext/-test-/rational/rat.c
new file mode 100644
index 0000000..49e216a
--- /dev/null
+++ b/ext/-test-/rational/rat.c
@@ -0,0 +1,36 @@
+#include "ruby.h"
+#include "internal.h"
+
+static VALUE
+big(VALUE x)
+{
+ if (FIXNUM_P(x))
+ return rb_int2big(FIX2LONG(x));
+ if (RB_TYPE_P(x, T_BIGNUM))
+ return x;
+ rb_raise(rb_eTypeError, "can't convert %s to Bignum",
+ rb_obj_classname(x));
+}
+
+static VALUE
+gcd_normal(VALUE x, VALUE y)
+{
+ return rb_big_norm(rb_gcd_normal(rb_to_int(x), rb_to_int(y)));
+}
+
+#if defined(HAVE_LIBGMP) && defined(HAVE_GMP_H)
+static VALUE
+gcd_gmp(VALUE x, VALUE y)
+{
+ return rb_big_norm(rb_gcd_gmp(big(x), big(y)));
+}
+#else
+#define gcd_gmp rb_f_notimplement
+#endif
+
+void
+Init_rational(VALUE klass)
+{
+ rb_define_method(rb_cInteger, "gcd_normal", gcd_normal, 1);
+ rb_define_method(rb_cInteger, "gcd_gmp", gcd_gmp, 1);
+}