| /* Test of scratch_buffer functions. |
| Copyright (C) 2018-2020 Free Software Foundation, Inc. |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
| |
| /* Written by Bruno Haible <bruno@clisp.org>, 2018. */ |
| |
| #include <config.h> |
| |
| #include <scratch_buffer.h> |
| |
| #include <string.h> |
| #include "macros.h" |
| |
| static int |
| byte_at (size_t i) |
| { |
| return ((i % 13) + ((i * i) % 251)) & 0xff; |
| } |
| |
| int |
| main () |
| { |
| /* Check scratch_buffer_set_array_size. */ |
| { |
| size_t sizes[] = { 100, 1000, 10000, 100000 }; |
| size_t s; |
| for (s = 0; s < SIZEOF (sizes); s++) |
| { |
| size_t size = sizes[s]; |
| struct scratch_buffer buf; |
| bool ok; |
| size_t i; |
| |
| scratch_buffer_init (&buf); |
| |
| ok = scratch_buffer_set_array_size (&buf, size, 1); |
| ASSERT (ok); |
| |
| for (i = 0; i < size; i++) |
| ((unsigned char *) buf.data)[i] = byte_at (i); |
| |
| memset (buf.data, 'x', buf.length); |
| memset (buf.data, 'y', size); |
| |
| scratch_buffer_free (&buf); |
| } |
| } |
| |
| /* Check scratch_buffer_grow. */ |
| { |
| size_t sizes[] = { 100, 1000, 10000, 100000 }; |
| size_t s; |
| for (s = 0; s < SIZEOF (sizes); s++) |
| { |
| size_t size = sizes[s]; |
| struct scratch_buffer buf; |
| bool ok; |
| size_t i; |
| |
| scratch_buffer_init (&buf); |
| |
| while (buf.length < size) |
| { |
| ok = scratch_buffer_grow (&buf); |
| ASSERT (ok); |
| } |
| |
| for (i = 0; i < size; i++) |
| ((unsigned char *) buf.data)[i] = byte_at (i); |
| |
| memset (buf.data, 'x', buf.length); |
| memset (buf.data, 'y', size); |
| |
| scratch_buffer_free (&buf); |
| } |
| } |
| |
| /* Check scratch_buffer_grow_preserve. */ |
| { |
| size_t sizes[] = { 100, 1000, 10000, 100000 }; |
| struct scratch_buffer buf; |
| size_t s; |
| size_t size; |
| bool ok; |
| size_t i; |
| |
| scratch_buffer_init (&buf); |
| |
| s = 0; |
| size = sizes[s]; |
| ok = scratch_buffer_set_array_size (&buf, size, 1); |
| ASSERT (ok); |
| |
| for (i = 0; i < size; i++) |
| ((unsigned char *) buf.data)[i] = byte_at (i); |
| |
| for (; s < SIZEOF (sizes); s++) |
| { |
| size_t oldsize = size; |
| size = sizes[s]; |
| |
| while (buf.length < size) |
| { |
| ok = scratch_buffer_grow_preserve (&buf); |
| ASSERT (ok); |
| } |
| |
| for (i = 0; i < oldsize; i++) |
| ASSERT(((unsigned char *) buf.data)[i] == byte_at (i)); |
| for (i = oldsize; i < size; i++) |
| ((unsigned char *) buf.data)[i] = byte_at (i); |
| } |
| |
| scratch_buffer_free (&buf); |
| } |
| |
| return 0; |
| } |