Imported Upstream version 60upstream/60

1 files changed, 29 insertions, 0 deletions

diff --git a/src/pkg/math/fdim.go b/src/pkg/math/fdim.go
new file mode 100644
index 000000000..18993137a
--- /dev/null
+++ b/src/pkg/math/fdim.go
@@ -0,0 +1,29 @@
+// Copyright 2010 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package math
+
+// Fdim returns the maximum of x-y or 0.
+func Fdim(x, y float64) float64 {
+	if x > y {
+		return x - y
+	}
+	return 0
+}
+
+// Fmax returns the larger of x or y.
+func Fmax(x, y float64) float64 {
+	if x > y {
+		return x
+	}
+	return y
+}
+
+// Fmin returns the smaller of x or y.
+func Fmin(x, y float64) float64 {
+	if x < y {
+		return x
+	}
+	return y
+}