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/* Test of uN_move() functions.
Copyright (C) 2010-2015 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 <http://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2010. */
int
main ()
{
/* Test copying operations with disjoint source and destination. */
{
static const UNIT src[] = { 'c', 'l', 'i', 'm', 'a', 't', 'e' };
size_t n;
for (n = 0; n <= SIZEOF (src); n++)
{
UNIT dest[1 + SIZEOF (src) + 1] =
{ MAGIC, MAGIC, MAGIC, MAGIC, MAGIC, MAGIC, MAGIC, MAGIC, MAGIC };
UNIT *ret;
size_t i;
ret = U_MOVE (dest + 1, src, n);
ASSERT (ret == dest + 1);
ASSERT (dest[0] == MAGIC);
for (i = 0; i < n; i++)
ASSERT (dest[1 + i] == src[i]);
ASSERT (dest[1 + n] == MAGIC);
}
}
/* Test copying operations with overlap, in-place. */
{
static const UNIT src[] = { 'c', 'l', 'i', 'm', 'a', 't', 'e' };
size_t n;
for (n = 0; n <= SIZEOF (src); n++)
{
UNIT dest[1 + SIZEOF (src) + 1];
UNIT *ret;
size_t i;
dest[0] = MAGIC;
for (i = 0; i < n; i++)
dest[1 + i] = src[i];
dest[1 + n] = MAGIC;
ret = U_MOVE (dest + 1, dest + 1, n);
ASSERT (ret == dest + 1);
ASSERT (dest[0] == MAGIC);
for (i = 0; i < n; i++)
ASSERT (dest[1 + i] == src[i]);
ASSERT (dest[1 + n] == MAGIC);
}
}
/* Test copying operations with overlap, moving downward. */
{
static const UNIT src[] = { 'c', 'l', 'i', 'm', 'a', 't', 'e' };
static const UNIT src2[] = { 'C', 'L', 'I', 'M', 'A', 'T', 'E' };
size_t d;
ASSERT (SIZEOF (src) == SIZEOF (src2));
for (d = 0; d <= SIZEOF (src); d++)
{
size_t n;
for (n = 0; n <= SIZEOF (src); n++)
{
UNIT dest[1 + 2 * SIZEOF (src) + 1];
UNIT *ret;
size_t i;
dest[0] = MAGIC;
for (i = 0; i < SIZEOF (src2); i++)
dest[1 + i] = src2[i];
for (i = 0; i < SIZEOF (src); i++)
dest[1 + SIZEOF (src) + i] = src[i];
dest[1 + 2 * SIZEOF (src)] = MAGIC;
ret =
U_MOVE (dest + 1 + SIZEOF (src) - d, dest + 1 + SIZEOF (src), n);
ASSERT (ret == dest + 1 + SIZEOF (src) - d);
ASSERT (dest[0] == MAGIC);
for (i = 0; i < SIZEOF (src) - d; i++)
ASSERT (dest[1 + i] == src2[i]);
for (i = 0; i < n; i++)
ASSERT (dest[1 + SIZEOF (src) - d + i] == src[i]);
for (i = SIZEOF (src) - d + n; i < SIZEOF (src2); i++)
ASSERT (dest[1 + i] == src2[i]);
for (i = (n >= d ? n - d : 0); i < SIZEOF (src); i++)
ASSERT (dest[1 + SIZEOF (src) + i] == src[i]);
ASSERT (dest[1 + 2 * SIZEOF (src)] == MAGIC);
}
}
}
/* Test copying operations with overlap, moving upward. */
{
static const UNIT src[] = { 'c', 'l', 'i', 'm', 'a', 't', 'e' };
static const UNIT src2[] = { 'C', 'L', 'I', 'M', 'A', 'T', 'E' };
size_t d;
ASSERT (SIZEOF (src) == SIZEOF (src2));
for (d = 0; d <= SIZEOF (src); d++)
{
size_t n;
for (n = 0; n <= SIZEOF (src); n++)
{
UNIT dest[1 + 2 * SIZEOF (src) + 1];
UNIT *ret;
size_t i;
dest[0] = MAGIC;
for (i = 0; i < SIZEOF (src); i++)
dest[1 + i] = src[i];
for (i = 0; i < SIZEOF (src2); i++)
dest[1 + SIZEOF (src) + i] = src2[i];
dest[1 + 2 * SIZEOF (src)] = MAGIC;
ret = U_MOVE (dest + 1 + d, dest + 1, n);
ASSERT (ret == dest + 1 + d);
ASSERT (dest[0] == MAGIC);
for (i = 0; i < d; i++)
ASSERT (dest[1 + i] == src[i]);
for (i = 0; i < n; i++)
ASSERT (dest[1 + d + i] == src[i]);
for (i = d + n; i < SIZEOF (src); i++)
ASSERT (dest[1 + i] == src[i]);
for (i = (d + n >= SIZEOF (src) ? d + n - SIZEOF (src) : 0);
i < SIZEOF (src2);
i++)
ASSERT (dest[1 + SIZEOF (src) + i] == src2[i]);
ASSERT (dest[1 + 2 * SIZEOF (src)] == MAGIC);
}
}
}
return 0;
}
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