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-rw-r--r--src/pkg/math/mod.go50
1 files changed, 0 insertions, 50 deletions
diff --git a/src/pkg/math/mod.go b/src/pkg/math/mod.go
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--- a/src/pkg/math/mod.go
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-// Copyright 2009-2010 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
-
-/*
- Floating-point mod function.
-*/
-
-// Mod returns the floating-point remainder of x/y.
-// The magnitude of the result is less than y and its
-// sign agrees with that of x.
-//
-// Special cases are:
-// Mod(±Inf, y) = NaN
-// Mod(NaN, y) = NaN
-// Mod(x, 0) = NaN
-// Mod(x, ±Inf) = x
-// Mod(x, NaN) = NaN
-func Mod(x, y float64) float64
-
-func mod(x, y float64) float64 {
- if y == 0 || IsInf(x, 0) || IsNaN(x) || IsNaN(y) {
- return NaN()
- }
- if y < 0 {
- y = -y
- }
-
- yfr, yexp := Frexp(y)
- sign := false
- r := x
- if x < 0 {
- r = -x
- sign = true
- }
-
- for r >= y {
- rfr, rexp := Frexp(r)
- if rfr < yfr {
- rexp = rexp - 1
- }
- r = r - Ldexp(y, rexp-yexp)
- }
- if sign {
- r = -r
- }
- return r
-}