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ed46224573* Add SQLite support, fix un-thread-safe DB caches, small performance fixes Signed-off-by: kim (grufwub) <grufwub@gmail.com> * add SQLite licenses to README Signed-off-by: kim (grufwub) <grufwub@gmail.com> * appease the linter, and fix my dumbass-ery Signed-off-by: kim (grufwub) <grufwub@gmail.com> * make requested changes Signed-off-by: kim (grufwub) <grufwub@gmail.com> * add back comment Signed-off-by: kim (grufwub) <grufwub@gmail.com>
27 lines
669 B
Go
27 lines
669 B
Go
// Copyright (c) 2014 The mathutil Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package mathutil // import "modernc.org/mathutil"
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// QCmpUint32 compares a/b and c/d and returns:
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//
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// -1 if a/b < c/d
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// 0 if a/b == c/d
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// +1 if a/b > c/d
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//
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func QCmpUint32(a, b, c, d uint32) int {
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switch x, y := uint64(a)*uint64(d), uint64(b)*uint64(c); {
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case x < y:
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return -1
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case x == y:
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return 0
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default: // x > y
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return 1
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}
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}
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// QScaleUint32 returns a such that a/b >= c/d.
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func QScaleUint32(b, c, d uint32) (a uint64) {
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return 1 + (uint64(b)*uint64(c))/uint64(d)
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}
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