diff options
Diffstat (limited to 'vendor/github.com/golang/geo/s2/bits_go19.go')
-rw-r--r-- | vendor/github.com/golang/geo/s2/bits_go19.go | 39 |
1 files changed, 0 insertions, 39 deletions
diff --git a/vendor/github.com/golang/geo/s2/bits_go19.go b/vendor/github.com/golang/geo/s2/bits_go19.go deleted file mode 100644 index 9532b377d..000000000 --- a/vendor/github.com/golang/geo/s2/bits_go19.go +++ /dev/null @@ -1,39 +0,0 @@ -// Copyright 2018 Google Inc. All rights reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// +build go1.9 - -package s2 - -// This file is for the bit manipulation code post-Go 1.9. - -import "math/bits" - -// findMSBSetNonZero64 returns the index (between 0 and 63) of the most -// significant set bit. Passing zero to this function return zero. -func findMSBSetNonZero64(x uint64) int { - if x == 0 { - return 0 - } - return 63 - bits.LeadingZeros64(x) -} - -// findLSBSetNonZero64 returns the index (between 0 and 63) of the least -// significant set bit. Passing zero to this function return zero. -func findLSBSetNonZero64(x uint64) int { - if x == 0 { - return 0 - } - return bits.TrailingZeros64(x) -} |