add expm1, expm1f functions

src/lib.rs

@@ -78,3 +78,7 @@ pub mod exp10;
 pub mod exp10f;
 #[path = "math/expf.rs"]
 pub mod expf;
+#[path = "math/expm1.rs"]
+pub mod expm1;
+#[path = "math/expm1f.rs"]
+pub mod expm1f;

src/math/expm1.rs

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: MPL-2.0
+/*
+ * File: src/math/expm1.rs
+ *
+ * The expm1 function.
+ *
+ * Author: HTG-YT
+ * Copyright (c) 2021 The LibM Team of the HaruxOS Project
+ */
+
+#[no_mangle]
+pub extern "C" fn expm1(x: f64) -> f64 {
+    libm::expm1(x)
+}

src/math/expm1f.rs

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: MPL-2.0
+/*
+ * File: src/math/expm1f.rs
+ *
+ * The expm1f function.
+ *
+ * Author: HTG-YT
+ * Copyright (c) 2021 The LibM Team of the HaruxOS Project
+ */
+
+#[no_mangle]
+pub extern "C" fn expm1f(x: f32) -> f32 {
+    libm::expm1f(x)
+}