glibc/string/tst-endian.c
Ulrich Drepper 2f9a1be867 [BZ #6442]
* string/endian.h: Add macros for fixed-size endian conversion.
	* bits/byteswap.h: Allow inclusion from <endian.h>.
	* sysdeps/i386/bits/byteswap.h: Likewise.
	* sysdeps/ia64/bits/byteswap.h: Likewise.
	* sysdeps/s390/bits/byteswap.h: Likewise.
	* sysdeps/x86_64/bits/byteswap.h: Likewise.
	* string/Makefile (tests): Add tst-endian.
	* string/tst-endian.c: New file.
2008-05-15 02:54:33 +00:00

113 lines
2.7 KiB
C

#include <byteswap.h>
#include <endian.h>
#include <inttypes.h>
#include <stdio.h>
static int
do_test (void)
{
int result = 0;
for (uint64_t i = 0; i < (~UINT64_C (0)) >> 2; i = (i << 1) + 3)
{
if (i < UINT64_C (65536))
{
if (htobe16 (be16toh (i)) != i)
{
printf ("htobe16 (be16toh (%" PRIx64 ")) == %" PRIx16 "\n",
i, (uint16_t) htobe16 (be16toh (i)));
result = 1;
}
if (htole16 (le16toh (i)) != i)
{
printf ("htole16 (le16toh (%" PRIx64 ")) == %" PRIx16 "\n",
i, (uint16_t) htole16 (le16toh (i)));
result = 1;
}
uint16_t n[2];
n[__BYTE_ORDER == __LITTLE_ENDIAN] = bswap_16 (i);
n[__BYTE_ORDER == __BIG_ENDIAN] = i;
if (htole16 (i) != n[0])
{
printf ("htole16 (%" PRIx64 ") == %" PRIx16 " != %" PRIx16 "\n",
i, (uint16_t) htole16 (i), n[0]);
result = 1;
}
if (htobe16 (i) != n[1])
{
printf ("htobe16 (%" PRIx64 ") == %" PRIx16 " != %" PRIx16 "\n",
i, (uint16_t) htobe16 (i), n[1]);
result = 1;
}
}
if (i < UINT64_C (4294967296))
{
if (htobe32 (be32toh (i)) != i)
{
printf ("htobe32 (be32toh (%" PRIx64 ")) == %" PRIx32 "\n",
i, (uint32_t) htobe32 (be32toh (i)));
result = 1;
}
if (htole32 (le32toh (i)) != i)
{
printf ("htole32 (le32toh (%" PRIx64 ")) == %" PRIx32 "\n",
i, (uint32_t) htole32 (le32toh (i)));
result = 1;
}
uint32_t n[2];
n[__BYTE_ORDER == __LITTLE_ENDIAN] = bswap_32 (i);
n[__BYTE_ORDER == __BIG_ENDIAN] = i;
if (htole32 (i) != n[0])
{
printf ("htole32 (%" PRIx64 ") == %" PRIx32 " != %" PRIx32 "\n",
i, (uint32_t) htole32 (i), n[0]);
result = 1;
}
if (htobe32 (i) != n[1])
{
printf ("htobe32 (%" PRIx64 ") == %" PRIx32 " != %" PRIx32 "\n",
i, (uint32_t) htobe32 (i), n[1]);
result = 1;
}
}
if (htobe64 (be64toh (i)) != i)
{
printf ("htobe64 (be64toh (%" PRIx64 ")) == %" PRIx64 "\n",
i, htobe64 (be64toh (i)));
result = 1;
}
if (htole64 (le64toh (i)) != i)
{
printf ("htole64 (le64toh (%" PRIx64 ")) == %" PRIx64 "\n",
i, htole64 (le64toh (i)));
result = 1;
}
uint64_t n[2];
n[__BYTE_ORDER == __LITTLE_ENDIAN] = bswap_64 (i);
n[__BYTE_ORDER == __BIG_ENDIAN] = i;
if (htole64 (i) != n[0])
{
printf ("htole64 (%" PRIx64 ") == %" PRIx64 " != %" PRIx64 "\n",
i, htole64 (i), n[0]);
result = 1;
}
if (htobe64 (i) != n[1])
{
printf ("htobe64 (%" PRIx64 ") == %" PRIx64 " != %" PRIx64 "\n",
i, htobe64 (i), n[1]);
result = 1;
}
}
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"