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-rw-r--r--ext/-test-/integer/core_ext.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/ext/-test-/integer/core_ext.c b/ext/-test-/integer/core_ext.c
new file mode 100644
index 0000000..6d64cdb
--- /dev/null
+++ b/ext/-test-/integer/core_ext.c
@@ -0,0 +1,29 @@
+#include "internal.h"
+
+static VALUE
+int_bignum_p(VALUE self)
+{
+ return RB_TYPE_P(self, T_BIGNUM) ? Qtrue : Qfalse;
+}
+
+static VALUE
+int_fixnum_p(VALUE self)
+{
+ return FIXNUM_P(self) ? Qtrue : Qfalse;
+}
+
+static VALUE
+rb_int_to_bignum(VALUE x)
+{
+ if (FIXNUM_P(x))
+ x = rb_int2big(FIX2LONG(x));
+ return x;
+}
+
+void
+Init_core_ext(VALUE klass)
+{
+ rb_define_method(rb_cInteger, "bignum?", int_bignum_p, 0);
+ rb_define_method(rb_cInteger, "fixnum?", int_fixnum_p, 0);
+ rb_define_method(rb_cInteger, "to_bignum", rb_int_to_bignum, 0);
+}