1 // $G $F.go && $L $F.$A && ./$A.out
3 // Copyright 2009 The Go Authors. All rights reserved.
4 // Use of this source code is governed by a BSD-style
5 // license that can be found in the LICENSE file.
7 // Semi-exhaustive test for copy()
18 var input8 = make([]uint8, N)
19 var output8 = make([]uint8, N)
20 var input16 = make([]uint16, N)
21 var output16 = make([]uint16, N)
22 var input32 = make([]uint32, N)
23 var output32 = make([]uint32, N)
24 var input64 = make([]uint64, N)
25 var output64 = make([]uint64, N)
27 var outputS = make([]uint8, N)
36 func u8(i int) uint8 {
41 func u16(ii int) uint16 {
48 func u32(ii int) uint32 {
56 func u64(ii int) uint64 {
66 // swap in and out to exercise copy-up and copy-down
67 input8, output8 = output8, input8
68 input16, output16 = output16, input16
69 input32, output32 = output32, input32
70 input64, output64 = output64, input64
73 for i := range input8 {
78 output16[i] = u16(out)
80 output32[i] = u32(out)
82 output64[i] = u64(out)
86 inputS = string(input8)
89 func clamp(n int) int {
96 func ncopied(length, in, out int) int {
107 func doAllSlices(length, in, out int) {
109 n := copy(my8(output8[out:clamp(out+length)]), input8[in:clamp(in+length)])
110 verify8(length, in, out, n)
111 n = copy(my8(outputS[out:clamp(out+length)]), myS(inputS[in:clamp(in+length)]))
112 verifyS(length, in, out, n)
113 n = copy(my16(output16[out:clamp(out+length)]), input16[in:clamp(in+length)])
114 verify16(length, in, out, n)
115 n = copy(my32(output32[out:clamp(out+length)]), my32b(input32[in:clamp(in+length)]))
116 verify32(length, in, out, n)
117 n = copy(my64(output64[out:clamp(out+length)]), input64[in:clamp(in+length)])
118 verify64(length, in, out, n)
121 func bad8(state string, i, length, in, out int) {
122 fmt.Printf("%s bad(%d %d %d): %c not %c:\n\t%s\n\t%s\n",
131 func verify8(length, in, out, m int) {
132 n := ncopied(length, in, out)
134 fmt.Printf("count bad(%d %d %d): %d not %d\n", length, in, out, m, n)
139 for i = 0; i < out; i++ {
140 if output8[i] != u8(i+13) {
141 bad8("before8", i, length, in, out)
146 for ; i < out+n; i++ {
147 if output8[i] != u8(i+in-out) {
148 bad8("copied8", i, length, in, out)
153 for ; i < len(output8); i++ {
154 if output8[i] != u8(i+13) {
155 bad8("after8", i, length, in, out)
161 func badS(state string, i, length, in, out int) {
162 fmt.Printf("%s bad(%d %d %d): %c not %c:\n\t%s\n\t%s\n",
171 func verifyS(length, in, out, m int) {
172 n := ncopied(length, in, out)
174 fmt.Printf("count bad(%d %d %d): %d not %d\n", length, in, out, m, n)
179 for i = 0; i < out; i++ {
180 if outputS[i] != u8(i+13) {
181 badS("beforeS", i, length, in, out)
186 for ; i < out+n; i++ {
187 if outputS[i] != u8(i+in-out) {
188 badS("copiedS", i, length, in, out)
193 for ; i < len(outputS); i++ {
194 if outputS[i] != u8(i+13) {
195 badS("afterS", i, length, in, out)
201 func bad16(state string, i, length, in, out int) {
202 fmt.Printf("%s bad(%d %d %d): %x not %x:\n\t%v\n\t%v\n",
211 func verify16(length, in, out, m int) {
212 n := ncopied(length, in, out)
214 fmt.Printf("count bad(%d %d %d): %d not %d\n", length, in, out, m, n)
219 for i = 0; i < out; i++ {
220 if output16[i] != u16(i+13) {
221 bad16("before16", i, length, in, out)
226 for ; i < out+n; i++ {
227 if output16[i] != u16(i+in-out) {
228 bad16("copied16", i, length, in, out)
233 for ; i < len(output16); i++ {
234 if output16[i] != u16(i+13) {
235 bad16("after16", i, length, in, out)
241 func bad32(state string, i, length, in, out int) {
242 fmt.Printf("%s bad(%d %d %d): %x not %x:\n\t%v\n\t%v\n",
251 func verify32(length, in, out, m int) {
252 n := ncopied(length, in, out)
254 fmt.Printf("count bad(%d %d %d): %d not %d\n", length, in, out, m, n)
259 for i = 0; i < out; i++ {
260 if output32[i] != u32(i+13) {
261 bad32("before32", i, length, in, out)
266 for ; i < out+n; i++ {
267 if output32[i] != u32(i+in-out) {
268 bad32("copied32", i, length, in, out)
273 for ; i < len(output32); i++ {
274 if output32[i] != u32(i+13) {
275 bad32("after32", i, length, in, out)
281 func bad64(state string, i, length, in, out int) {
282 fmt.Printf("%s bad(%d %d %d): %x not %x:\n\t%v\n\t%v\n",
291 func verify64(length, in, out, m int) {
292 n := ncopied(length, in, out)
294 fmt.Printf("count bad(%d %d %d): %d not %d\n", length, in, out, m, n)
299 for i = 0; i < out; i++ {
300 if output64[i] != u64(i+13) {
301 bad64("before64", i, length, in, out)
306 for ; i < out+n; i++ {
307 if output64[i] != u64(i+in-out) {
308 bad64("copied64", i, length, in, out)
313 for ; i < len(output64); i++ {
314 if output64[i] != u64(i+13) {
315 bad64("after64", i, length, in, out)
322 for length := 0; length < N; length++ {
323 for in := 0; in <= 32; in++ {
324 for out := 0; out <= 32; out++ {
325 doAllSlices(length, in, out)
331 // Array test. Can be much simpler. It's only checking for correct handling of [0:].
335 copy(array[0:], input8)
336 for i := 0; i < N; i++ {
339 copy(output8, array[0:])