summaryrefslogtreecommitdiff
path: root/jni/ruby/ext/-test-/rational/rat.c
diff options
context:
space:
mode:
authorJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-16 18:49:26 +0900
committerJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-30 00:39:06 +0900
commitfcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch)
tree64cb17de3f41a2b6fef2368028fbd00349946994 /jni/ruby/ext/-test-/rational/rat.c
Fresh start
Diffstat (limited to 'jni/ruby/ext/-test-/rational/rat.c')
-rw-r--r--jni/ruby/ext/-test-/rational/rat.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/jni/ruby/ext/-test-/rational/rat.c b/jni/ruby/ext/-test-/rational/rat.c
new file mode 100644
index 0000000..772546f
--- /dev/null
+++ b/jni/ruby/ext/-test-/rational/rat.c
@@ -0,0 +1,37 @@
+#include "internal.h"
+
+#if defined(HAVE_LIBGMP) && defined(HAVE_GMP_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));
+}
+#endif
+
+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);
+}