1 files changed, 36 insertions, 0 deletions
diff --git a/ext/-test-/float/nextafter.c b/ext/-test-/float/nextafter.c
new file mode 100644
index 0000000000..30fb71f520
--- /dev/null
+++ b/ext/-test-/float/nextafter.c
@@ -0,0 +1,36 @@
+#include "ruby.h"
+
+static VALUE
+system_nextafter_m(VALUE klass, VALUE vx, VALUE vy)
+{
+    double x, y, z;
+
+    x = NUM2DBL(vx);
+    y = NUM2DBL(vy);
+    z = nextafter(x, y);
+
+    return DBL2NUM(z);
+}
+
+#define nextafter missing_nextafter
+#include "../../../missing/nextafter.c"
+#undef nextafter
+
+static VALUE
+missing_nextafter_m(VALUE klass, VALUE vx, VALUE vy)
+{
+    double x, y, z;
+
+    x = NUM2DBL(vx);
+    y = NUM2DBL(vy);
+    z = missing_nextafter(x, y);
+
+    return DBL2NUM(z);
+}
+
+void
+Init_nextafter(VALUE klass)
+{
+    rb_define_singleton_method(klass, "system_nextafter", system_nextafter_m, 2);
+    rb_define_singleton_method(klass, "missing_nextafter", missing_nextafter_m, 2);
+}