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go/misc/cgo/life/main.go
Russ Cox 84dc501d20 test/run: use go tool compile + link instead of go run when possible
This cuts 6 seconds off all.bash with the new go command.
Not a ton, but also an easy 6 seconds to grab.

The -tags=use_go_run in the misc/cgo tests is just some
go command flag that will make run.go use go run,
but without making everything look stale.
(Those tests have relative imports,
so go tool compile+link is not enough.)

Change-Id: I43bf4bb661d3adde2b2d4aad5e8f64b97bc69ba9
Reviewed-on: https://go-review.googlesource.com/73994
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2017-10-31 13:21:05 +00:00

50 lines
821 B
Go

// cmpout -tags=use_go_run
// Copyright 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.
// +build test_run
// Run the game of life in C using Go for parallelization.
package main
import (
"flag"
"fmt"
"."
)
const MAXDIM = 100
var dim = flag.Int("dim", 16, "board dimensions")
var gen = flag.Int("gen", 10, "generations")
func main() {
flag.Parse()
var a [MAXDIM * MAXDIM]int32
for i := 2; i < *dim; i += 8 {
for j := 2; j < *dim-3; j += 8 {
for y := 0; y < 3; y++ {
a[i**dim+j+y] = 1
}
}
}
life.Run(*gen, *dim, *dim, a[:])
for i := 0; i < *dim; i++ {
for j := 0; j < *dim; j++ {
if a[i**dim+j] == 0 {
fmt.Print(" ")
} else {
fmt.Print("X")
}
}
fmt.Print("\n")
}
}