c2047754c3
Compiler changes:
* Change map assignment to use mapassign and assign value directly.
* Change string iteration to use decoderune, faster for ASCII strings.
* Change makeslice to take int, and use makeslice64 for larger values.
* Add new noverflow field to hmap struct used for maps.
Unresolved problems, to be fixed later:
* Commented out test in go/types/sizes_test.go that doesn't compile.
* Commented out reflect.TestStructOf test for padding after zero-sized field.
Reviewed-on: https://go-review.googlesource.com/35231
gotools/:
Updates for Go 1.8rc1.
* Makefile.am (go_cmd_go_files): Add bug.go.
(s-zdefaultcc): Write defaultPkgConfig.
* Makefile.in: Rebuild.
From-SVN: r244456
49 lines
1.1 KiB
Go
49 lines
1.1 KiB
Go
// Copyright 2016 The Go 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 rand
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import (
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"sync"
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"testing"
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)
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// TestConcurrent exercises the rand API concurrently, triggering situations
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// where the race detector is likely to detect issues.
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func TestConcurrent(t *testing.T) {
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const (
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numRoutines = 10
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numCycles = 10
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)
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var wg sync.WaitGroup
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defer wg.Wait()
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wg.Add(numRoutines)
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for i := 0; i < numRoutines; i++ {
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go func(i int) {
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defer wg.Done()
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buf := make([]byte, 997)
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for j := 0; j < numCycles; j++ {
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var seed int64
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seed += int64(ExpFloat64())
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seed += int64(Float32())
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seed += int64(Float64())
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seed += int64(Intn(Int()))
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seed += int64(Int31n(Int31()))
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seed += int64(Int63n(Int63()))
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seed += int64(NormFloat64())
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seed += int64(Uint32())
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seed += int64(Uint64())
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for _, p := range Perm(10) {
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seed += int64(p)
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}
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Read(buf)
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for _, b := range buf {
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seed += int64(b)
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}
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Seed(int64(i*j) * seed)
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}
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}(i)
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}
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}
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