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go/test/ken/sliceslice.go

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// $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 []byte
var by []byte;
var fx []float
var fy []float;
var lb,hb int
var t int
func
main() {
// width 1 (byte)
lb = 0; hb = 10;
by = bx[lb:hb]; tstb();
by = bx[lb:10]; tstb();
by = bx[lb:]; tstb();
by = bx[0:hb]; tstb();
by = bx[0:10]; tstb();
by = bx[0:]; 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();
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 (float)
lb = 0; hb = 10;
fy = fx[lb:hb]; tstf();
fy = fx[lb:10]; tstf();
fy = fx[lb:]; tstf();
fy = fx[0:hb]; tstf();
fy = fx[0:10]; tstf();
fy = fx[0:]; 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[0:hb]; tstf();
fy = fx[0:8]; 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 {
panicln("t=", t, "lb=", lb, "hb=", hb,
"len=", len(by), "hb-lb=", hb-lb);
}
if cap(by) != len(bx)-lb {
panicln("t=", t, "lb=", lb, "hb=", hb,
"cap=", cap(by), "len(bx)-lb=", len(bx)-lb);
}
for i:=lb; i<hb; i++ {
if bx[i] != by[i-lb] {
panicln("t=", t, "lb=", lb, "hb=", hb,
"bx[", i, "]=", bx[i],
"by[", i-lb, "]=", by[i-lb]);
}
}
by = nil;
}
func
tstf() {
t++;
if len(fy) != hb-lb {
panicln("t=", t, "lb=", lb, "hb=", hb,
"len=", len(fy), "hb-lb=", hb-lb);
}
if cap(fy) != len(fx)-lb {
panicln("t=", t, "lb=", lb, "hb=", hb,
"cap=", cap(fy), "len(fx)-lb=", len(fx)-lb);
}
for i:=lb; i<hb; i++ {
if fx[i] != fy[i-lb] {
panicln("t=", t, "lb=", lb, "hb=", hb,
"fx[", i, "]=", fx[i],
"fy[", i-lb, "]=", fy[i-lb]);
}
}
fy = nil;
}
func
init() {
bx = make([]byte, 10);
for i:=0; i<len(bx); i++ {
bx[i] = byte(i+20);
}
by = nil;
fx = make([]float, 10);
for i:=0; i<len(fx); i++ {
fx[i] = float(i+20);
}
fy = nil;
}