Move musl reference tests into its own file

Author: gnzlbg

.gitignore

@@ -4,5 +4,4 @@
 /math/src
 /math/target
 /target
-/tests
 Cargo.lock

tests/musl-reference-tests.rs

@@ -0,0 +1,36 @@
+#![cfg(all(test, feature = "musl-reference-tests"))]
+
+use core::{f32, f64};
+
+/// Approximate equality with 1 ULP of tolerance
+#[inline]
+fn _eqf(a: f32, b: f32) -> Result<(), u32> {
+    if a.is_nan() && b.is_nan() {
+        Ok(())
+    } else {
+        let err = (a.to_bits() as i32).wrapping_sub(b.to_bits() as i32).abs();
+
+        if err <= 1 {
+            Ok(())
+        } else {
+            Err(err as u32)
+        }
+    }
+}
+
+#[inline]
+fn _eq(a: f64, b: f64) -> Result<(), u64> {
+    if a.is_nan() && b.is_nan() {
+        Ok(())
+    } else {
+        let err = (a.to_bits() as i64).wrapping_sub(b.to_bits() as i64).abs();
+
+        if err <= 1 {
+            Ok(())
+        } else {
+            Err(err as u64)
+        }
+    }
+}
+
+include!(concat!(env!("OUT_DIR"), "/musl-tests.rs"));

tests/unit.rs

@@ -1,42 +1,5 @@
-#![cfg(test)]
-
-use core::{f32, f64};
 use libm::*;
 
-/// Approximate equality with 1 ULP of tolerance
-#[inline]
-fn _eqf(a: f32, b: f32) -> Result<(), u32> {
-    if a.is_nan() && b.is_nan() {
-        Ok(())
-    } else {
-        let err = (a.to_bits() as i32).wrapping_sub(b.to_bits() as i32).abs();
-
-        if err <= 1 {
-            Ok(())
-        } else {
-            Err(err as u32)
-        }
-    }
-}
-
-#[inline]
-fn _eq(a: f64, b: f64) -> Result<(), u64> {
-    if a.is_nan() && b.is_nan() {
-        Ok(())
-    } else {
-        let err = (a.to_bits() as i64).wrapping_sub(b.to_bits() as i64).abs();
-
-        if err <= 1 {
-            Ok(())
-        } else {
-            Err(err as u64)
-        }
-    }
-}
-
-#[cfg(all(test, feature = "musl-reference-tests"))]
-include!(concat!(env!("OUT_DIR"), "/musl-tests.rs"));
-
 #[test]
 fn remquo_q_overflow() {
     // 0xc000000000000001, 0x04c0000000000004