mirror of
https://github.com/golang/go
synced 2024-11-22 17:44:46 -07:00
f2b5a07453
also: cmplx -> complex float64(1.0) -> 1.0 float64(1) -> 1.0 R=gri, r, gri1, r2 CC=golang-dev https://golang.org/cl/3991043
211 lines
2.7 KiB
Go
211 lines
2.7 KiB
Go
// $G $D/$F.go && $L $F.$A && ./$A.out
|
|
|
|
// Copyright 2009 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.
|
|
|
|
package main
|
|
|
|
var bx [10]byte
|
|
var by []byte
|
|
var fx [10]float64
|
|
var fy []float64
|
|
var lb, hb int
|
|
var t int
|
|
|
|
func main() {
|
|
lb = 0
|
|
hb = 10
|
|
by = bx[0:]
|
|
tstb()
|
|
|
|
lb = 0
|
|
hb = 10
|
|
fy = fx[0:]
|
|
tstf()
|
|
|
|
// width 1 (byte)
|
|
lb = 0
|
|
hb = 10
|
|
by = bx[lb:hb]
|
|
tstb()
|
|
by = bx[lb:10]
|
|
tstb()
|
|
by = bx[lb:]
|
|
tstb()
|
|
by = bx[:hb]
|
|
tstb()
|
|
by = bx[0:hb]
|
|
tstb()
|
|
by = bx[0:10]
|
|
tstb()
|
|
by = bx[0:]
|
|
tstb()
|
|
by = bx[:10]
|
|
tstb()
|
|
by = bx[:]
|
|
tstb()
|
|
|
|
lb = 2
|
|
hb = 10
|
|
by = bx[lb:hb]
|
|
tstb()
|
|
by = bx[lb:10]
|
|
tstb()
|
|
by = bx[lb:]
|
|
tstb()
|
|
by = bx[2:hb]
|
|
tstb()
|
|
by = bx[2:10]
|
|
tstb()
|
|
by = bx[2:]
|
|
tstb()
|
|
|
|
lb = 0
|
|
hb = 8
|
|
by = bx[lb:hb]
|
|
tstb()
|
|
by = bx[lb:8]
|
|
tstb()
|
|
by = bx[0:hb]
|
|
tstb()
|
|
by = bx[0:8]
|
|
tstb()
|
|
by = bx[:8]
|
|
tstb()
|
|
by = bx[:hb]
|
|
tstb()
|
|
|
|
lb = 2
|
|
hb = 8
|
|
by = bx[lb:hb]
|
|
tstb()
|
|
by = bx[lb:8]
|
|
tstb()
|
|
by = bx[2:hb]
|
|
tstb()
|
|
by = bx[2:8]
|
|
tstb()
|
|
|
|
// width 4 (float64)
|
|
lb = 0
|
|
hb = 10
|
|
fy = fx[lb:hb]
|
|
tstf()
|
|
fy = fx[lb:10]
|
|
tstf()
|
|
fy = fx[lb:]
|
|
tstf()
|
|
fy = fx[:hb]
|
|
tstf()
|
|
fy = fx[0:hb]
|
|
tstf()
|
|
fy = fx[0:10]
|
|
tstf()
|
|
fy = fx[0:]
|
|
tstf()
|
|
fy = fx[:10]
|
|
tstf()
|
|
fy = fx[:]
|
|
tstf()
|
|
|
|
lb = 2
|
|
hb = 10
|
|
fy = fx[lb:hb]
|
|
tstf()
|
|
fy = fx[lb:10]
|
|
tstf()
|
|
fy = fx[lb:]
|
|
tstf()
|
|
fy = fx[2:hb]
|
|
tstf()
|
|
fy = fx[2:10]
|
|
tstf()
|
|
fy = fx[2:]
|
|
tstf()
|
|
|
|
lb = 0
|
|
hb = 8
|
|
fy = fx[lb:hb]
|
|
tstf()
|
|
fy = fx[lb:8]
|
|
tstf()
|
|
fy = fx[:hb]
|
|
tstf()
|
|
fy = fx[0:hb]
|
|
tstf()
|
|
fy = fx[0:8]
|
|
tstf()
|
|
fy = fx[:8]
|
|
tstf()
|
|
|
|
lb = 2
|
|
hb = 8
|
|
fy = fx[lb:hb]
|
|
tstf()
|
|
fy = fx[lb:8]
|
|
tstf()
|
|
fy = fx[2:hb]
|
|
tstf()
|
|
fy = fx[2:8]
|
|
tstf()
|
|
}
|
|
|
|
func tstb() {
|
|
t++
|
|
if len(by) != hb-lb {
|
|
println("t=", t, "lb=", lb, "hb=", hb,
|
|
"len=", len(by), "hb-lb=", hb-lb)
|
|
panic("fail")
|
|
}
|
|
if cap(by) != len(bx)-lb {
|
|
println("t=", t, "lb=", lb, "hb=", hb,
|
|
"cap=", cap(by), "len(bx)-lb=", len(bx)-lb)
|
|
panic("fail")
|
|
}
|
|
for i := lb; i < hb; i++ {
|
|
if bx[i] != by[i-lb] {
|
|
println("t=", t, "lb=", lb, "hb=", hb,
|
|
"bx[", i, "]=", bx[i],
|
|
"by[", i-lb, "]=", by[i-lb])
|
|
panic("fail")
|
|
}
|
|
}
|
|
by = nil
|
|
}
|
|
|
|
func tstf() {
|
|
t++
|
|
if len(fy) != hb-lb {
|
|
println("t=", t, "lb=", lb, "hb=", hb,
|
|
"len=", len(fy), "hb-lb=", hb-lb)
|
|
panic("fail")
|
|
}
|
|
if cap(fy) != len(fx)-lb {
|
|
println("t=", t, "lb=", lb, "hb=", hb,
|
|
"cap=", cap(fy), "len(fx)-lb=", len(fx)-lb)
|
|
panic("fail")
|
|
}
|
|
for i := lb; i < hb; i++ {
|
|
if fx[i] != fy[i-lb] {
|
|
println("t=", t, "lb=", lb, "hb=", hb,
|
|
"fx[", i, "]=", fx[i],
|
|
"fy[", i-lb, "]=", fy[i-lb])
|
|
panic("fail")
|
|
}
|
|
}
|
|
fy = nil
|
|
}
|
|
|
|
func init() {
|
|
for i := 0; i < len(bx); i++ {
|
|
bx[i] = byte(i + 20)
|
|
}
|
|
by = nil
|
|
|
|
for i := 0; i < len(fx); i++ {
|
|
fx[i] = float64(i + 20)
|
|
}
|
|
fy = nil
|
|
}
|