1 files changed, 11 insertions, 0 deletions
diff --git a/vendor/libm/src/math/copysignf.rs b/vendor/libm/src/math/copysignf.rs
new file mode 100644
index 000000000..35148561a
--- /dev/null
+++ b/vendor/libm/src/math/copysignf.rs
@@ -0,0 +1,11 @@
+/// Sign of Y, magnitude of X (f32)
+///
+/// Constructs a number with the magnitude (absolute value) of its
+/// first argument, `x`, and the sign of its second argument, `y`.
+pub fn copysignf(x: f32, y: f32) -> f32 {
+    let mut ux = x.to_bits();
+    let uy = y.to_bits();
+    ux &= 0x7fffffff;
+    ux |= uy & 0x80000000;
+    f32::from_bits(ux)
+}