27 lines
1010 B
Go
27 lines
1010 B
Go
// Copyright 2018 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package bits includes all bit related types and operations.
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package bits
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// AlignUp rounds a length up to an alignment. align must be a power of 2.
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func AlignUp(length int, align uint) int {
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return (length + int(align) - 1) & ^(int(align) - 1)
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}
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// AlignDown rounds a length down to an alignment. align must be a power of 2.
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func AlignDown(length int, align uint) int {
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return length & ^(int(align) - 1)
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}
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