Viewing file:  memcpy-1.c (1.23 KB) -rw-r--r--
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/* { dg-add-options stack_size } */
#include <string.h>
#if defined (STACK_SIZE)
#define MEMCPY_SIZE (STACK_SIZE / 3)
#else
#define MEMCPY_SIZE (1 << 17)
#endif
void *copy (void *o, const void *i, unsigned l)
{
return memcpy (o, i, l);
}
main ()
{
unsigned i;
unsigned char src[MEMCPY_SIZE];
unsigned char dst[MEMCPY_SIZE];
for (i = 0; i < MEMCPY_SIZE; i++)
src[i] = (unsigned char) i, dst[i] = 0;
(void) memcpy (dst, src, MEMCPY_SIZE / 128);
for (i = 0; i < MEMCPY_SIZE / 128; i++)
if (dst[i] != (unsigned char) i)
abort ();
(void) memset (dst, 1, MEMCPY_SIZE / 128);
for (i = 0; i < MEMCPY_SIZE / 128; i++)
if (dst[i] != 1)
abort ();
(void) memcpy (dst, src, MEMCPY_SIZE);
for (i = 0; i < MEMCPY_SIZE; i++)
if (dst[i] != (unsigned char) i)
abort ();
(void) memset (dst, 0, MEMCPY_SIZE);
for (i = 0; i < MEMCPY_SIZE; i++)
if (dst[i] != 0)
abort ();
(void) copy (dst, src, MEMCPY_SIZE / 128);
for (i = 0; i < MEMCPY_SIZE / 128; i++)
if (dst[i] != (unsigned char) i)
abort ();
(void) memset (dst, 0, MEMCPY_SIZE);
(void) copy (dst, src, MEMCPY_SIZE);
for (i = 0; i < MEMCPY_SIZE; i++)
if (dst[i] != (unsigned char) i)
abort ();
exit (0);
}
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