1 files changed, 25 insertions, 0 deletions
diff --git a/src/pkg/math/floor.go b/src/pkg/math/floor.go
new file mode 100644
index 000000000..48a1003f0
--- /dev/null
+++ b/src/pkg/math/floor.go
@@ -0,0 +1,25 @@
+// Copyright 2009 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
+
+import "math"
+
+// Floor returns the greatest integer value less than or equal to x.
+func Floor(x float64) float64 {
+	if x < 0 {
+		d, fract := Modf(-x);
+		if fract != 0.0 {
+			d = d+1;
+		}
+		return -d;
+	}
+	d, fract := Modf(x);
+	return d;
+}
+
+// Ceil returns the least integer value greater than or equal to x.
+func Ceil(x float64) float64 {
+	return -Floor(-x);
+}