glibc/stdlib/tst-limits.c

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/* It is important that this comes first to not hide effects introduced
by other headers. */
#include <limits.h>
#include <inttypes.h>
#include <stdio.h>
static long long int
bitval (int bits)
{
long long int val = 0;
while (bits-- > 0)
val |= 1ll << bits;
return val;
}
int
main (void)
{
int result = 0;
#define TEST(name, format, expected) \
printf ("%-12s expected = %-20" format " actual = %" format "\n", \
#name ":", expected, name); \
result |= name != expected
/* The limits from ISO C99. */
/* We cannot support anything but 8-bit chars. */
TEST (CHAR_BIT, "d", 8);
TEST (SCHAR_MIN, "d", -128);
TEST (SCHAR_MAX, "d", 127);
TEST (UCHAR_MAX, "d", 255);
TEST (SHRT_MIN, "d", -(1 << (sizeof (short int) * CHAR_BIT - 1)));
TEST (SHRT_MAX, "d", (1 << (sizeof (short int) * CHAR_BIT - 1)) - 1);
TEST (USHRT_MAX, "d", (1 << sizeof (short int) * CHAR_BIT) - 1);
TEST (INT_MIN, "d", (int) -bitval (sizeof (int) * CHAR_BIT - 1) - 1);
TEST (INT_MAX, "d", (int) bitval (sizeof (int) * CHAR_BIT - 1));
TEST (UINT_MAX, "u",
(unsigned int) bitval (sizeof (unsigned int) * CHAR_BIT));
TEST (LONG_MIN, "ld",
(long int) -bitval (sizeof (long int) * CHAR_BIT - 1) - 1);
TEST (LONG_MAX, "ld", (long int) bitval (sizeof (long int) * CHAR_BIT - 1));
TEST (ULONG_MAX, "lu",
(unsigned long int) bitval (sizeof (unsigned long int) * CHAR_BIT));
TEST (LLONG_MIN, "lld", -bitval (sizeof (long long int) * CHAR_BIT - 1) - 1);
TEST (LLONG_MAX, "lld", bitval (sizeof (long long int) * CHAR_BIT - 1));
TEST (ULLONG_MAX, "llu",
(unsigned long long int) bitval (sizeof (unsigned long long int)
* CHAR_BIT));
/* Values from POSIX and Unix. */
#ifdef PAGESIZE
TEST (PAGESIZE, "d", getpagesize ());
#elif PAGE_SIZE
TEST (PAGE_SIZE, "d", getpagesize ());
#endif
Update. 2003-07-31 Jakub Jelinek <jakub@redhat.com> * dlfcn/dlerror.c (once): New. (dlerror): Call __libc_once. (_dlerror_run): Remove once. 2003-07-31 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h (struct sigcontext): Sync with 2.5.7 and 2.5.73 kernel changes. 2003-07-31 Jakub Jelinek <jakub@redhat.com> * dlfcn/eval.c (funcall): Add noinline attribute to shut up warnings. * elf/rtld.c (dl_main): Cast ElfW(Addr) arguments with %Zx/%Zd formats to size_t. * elf/dl-lookup.c (_dl_debug_bindings): Likewise. * elf/tst-tls6.c (do_test): Use %zd format for l_tls_modid. * elf/tst-tls8.c (do_test): Use %zd format for modid1 and modid2. * gmon/tst-sprofil.c (main): Add parens to shut up warning. * iconv/tst-iconv3.c (main): Use %td instead of %zd for pointer difference argument. * stdio-common/tst-wc-printf.c (main): Cast arguments with %C format to wint_t. * stdlib/tst-limits.c (main): For WORD_BIT and LONG_BIT, use %d format and cast expected value to int. * sysdeps/generic/libc-start.c (STATIC): Add __attribute__((always_inline) if LIBC_START_MAIN is already defined. * sysdeps/powerpc/fpu/w_sqrt.c (a_nan, a_inf): Change from uint32_t to ieee_float_shape_type. (__sqrt): Avoid type punning. * sysdeps/powerpc/fpu/w_sqrtf.c (a_nan, a_inf): Change from uint32_t to ieee_float_shape_type. (__sqrtf): Avoid type punning. * sysdeps/s390/s390-32/dl-machine.h (elf_machine_rela): Don't define refsym if in dl-conflict.c. * sysdeps/s390/s390-64/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/unix/sysv/linux/i386/semctl.c (union semun): Add __old_buf. (__new_semctl): Shut up warning. * sysdeps/unix/sysv/linux/semctl.c (union semun): Add __old_buf. (__new_semctl): Shut up warning. * sysdeps/unix/sysv/linux/shmctl.c (__new_shmctl): Wrap long lines. Change old into union of __old_shmid_ds and __old_shminfo structs. Adjust all users. * wcsmbs/wcsmbs-tst1.c (main): Cast arguments with %C format to wint_t. 2003-07-31 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/utimes.c (__utimes): Fix actime and modtime computation. * sysdeps/unix/sysv/linux/futimes.c (__futimes): Likewise. * sysdeps/posix/utimes.c (__utimes): Likewise.
2003-07-31 19:26:38 +00:00
TEST (WORD_BIT, "d", (int) sizeof (int) * CHAR_BIT);
TEST (LONG_BIT, "d", (int) sizeof (long int) * CHAR_BIT);
return result;
}