From 7e49f832415692c03e1658d8762c3ca2cd9cb7dc Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Thu, 2 May 2019 12:21:55 -0700
Subject: [PATCH] Add bindings for ldexp/ldexpf

Should help in fixing wasmerio/wasmer#407
---
 src/math/ldexp.rs  | 5 +++++
 src/math/ldexpf.rs | 5 +++++
 src/math/mod.rs    | 4 ++++
 3 files changed, 14 insertions(+)
 create mode 100644 src/math/ldexp.rs
 create mode 100644 src/math/ldexpf.rs

diff --git a/src/math/ldexp.rs b/src/math/ldexp.rs
new file mode 100644
index 0000000..780ddfc
--- /dev/null
+++ b/src/math/ldexp.rs
@@ -0,0 +1,5 @@
+#[inline]
+#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
+pub fn ldexp(x: f64, n: i32) -> f64 {
+    super::scalbn(x, n)
+}
diff --git a/src/math/ldexpf.rs b/src/math/ldexpf.rs
new file mode 100644
index 0000000..70935a0
--- /dev/null
+++ b/src/math/ldexpf.rs
@@ -0,0 +1,5 @@
+#[inline]
+#[cfg_attr(all(test, assert_no_panic), no_panic::no_panic)]
+pub fn ldexpf(x: f32, n: i32) -> f32 {
+    super::scalbnf(x, n)
+}
diff --git a/src/math/mod.rs b/src/math/mod.rs
index e51b151..be0918f 100644
--- a/src/math/mod.rs
+++ b/src/math/mod.rs
@@ -104,6 +104,8 @@ mod fmod;
 mod fmodf;
 mod hypot;
 mod hypotf;
+mod ldexp;
+mod ldexpf;
 mod log;
 mod log10;
 mod log10f;
@@ -166,6 +168,8 @@ pub use self::fmod::fmod;
 pub use self::fmodf::fmodf;
 pub use self::hypot::hypot;
 pub use self::hypotf::hypotf;
+pub use self::ldexp::ldexp;
+pub use self::ldexpf::ldexpf;
 pub use self::log::log;
 pub use self::log10::log10;
 pub use self::log10f::log10f;