Add remainder

This PR adds the missing `remainder` and `remainderf` found in musl libm respectly https://git.musl-libc.org/cgit/musl/tree/src/math/remainder.c and https://git.musl-libc.org/cgit/musl/tree/src/math/remainderf.c

Signed-off-by: Benjamin Schultzer <benjamin@schultzer.com>

src/math/mod.rs

@@ -148,6 +148,8 @@ mod modf;
 mod modff;
 mod pow;
 mod powf;
+mod remainder;
+mod remainderf;
 mod remquo;
 mod remquof;
 mod round;
@@ -258,6 +260,8 @@ pub use self::modf::modf;
 pub use self::modff::modff;
 pub use self::pow::pow;
 pub use self::powf::powf;
+pub use self::remainder::remainder;
+pub use self::remainderf::remainderf;
 pub use self::remquo::remquo;
 pub use self::remquof::remquof;
 pub use self::round::round;

src/math/remainder.rs

@@ -0,0 +1,5 @@
+#[inline]
+#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
+pub fn remainder(x: f64, y: f64) -> (f64, i32) {
+    super::remquo(x, y)
+}

src/math/remainderf.rs

@@ -0,0 +1,5 @@
+#[inline]
+#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
+pub fn remainderf(x: f32, y: f32) -> (f32, i32) {
+    super::remquof(x, y)
+}