modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/builtins/abs-3.c (about)

     1  /* Test for builtin abs, labs, llabs, imaxabs.  Test for __builtin versions. */
     2  /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
     3  
     4  #include <limits.h>
     5  typedef __INTMAX_TYPE__ intmax_t;
     6  #define INTMAX_MAX __INTMAX_MAX__
     7  
     8  extern void abort (void);
     9  extern void link_error (void);
    10  
    11  void
    12  main_test (void)
    13  {
    14    /* For each type, test both runtime and compile time (constant folding)
    15       optimization.  */
    16    volatile int i0 = 0, i1 = 1, im1 = -1, imin = -INT_MAX, imax = INT_MAX;
    17    volatile long l0 = 0L, l1 = 1L, lm1 = -1L, lmin = -LONG_MAX, lmax = LONG_MAX;
    18    volatile long long ll0 = 0LL, ll1 = 1LL, llm1 = -1LL;
    19    volatile long long llmin = -__LONG_LONG_MAX__, llmax = __LONG_LONG_MAX__;
    20    volatile intmax_t imax0 = 0, imax1 = 1, imaxm1 = -1;
    21    volatile intmax_t imaxmin = -INTMAX_MAX, imaxmax = INTMAX_MAX;
    22    if (__builtin_abs (i0) != 0)
    23      abort ();
    24    if (__builtin_abs (0) != 0)
    25      link_error ();
    26    if (__builtin_abs (i1) != 1)
    27      abort ();
    28    if (__builtin_abs (1) != 1)
    29      link_error ();
    30    if (__builtin_abs (im1) != 1)
    31      abort ();
    32    if (__builtin_abs (-1) != 1)
    33      link_error ();
    34    if (__builtin_abs (imin) != INT_MAX)
    35      abort ();
    36    if (__builtin_abs (-INT_MAX) != INT_MAX)
    37      link_error ();
    38    if (__builtin_abs (imax) != INT_MAX)
    39      abort ();
    40    if (__builtin_abs (INT_MAX) != INT_MAX)
    41      link_error ();
    42    if (__builtin_labs (l0) != 0L)
    43      abort ();
    44    if (__builtin_labs (0L) != 0L)
    45      link_error ();
    46    if (__builtin_labs (l1) != 1L)
    47      abort ();
    48    if (__builtin_labs (1L) != 1L)
    49      link_error ();
    50    if (__builtin_labs (lm1) != 1L)
    51      abort ();
    52    if (__builtin_labs (-1L) != 1L)
    53      link_error ();
    54    if (__builtin_labs (lmin) != LONG_MAX)
    55      abort ();
    56    if (__builtin_labs (-LONG_MAX) != LONG_MAX)
    57      link_error ();
    58    if (__builtin_labs (lmax) != LONG_MAX)
    59      abort ();
    60    if (__builtin_labs (LONG_MAX) != LONG_MAX)
    61      link_error ();
    62    if (__builtin_llabs (ll0) != 0LL)
    63      abort ();
    64    if (__builtin_llabs (0LL) != 0LL)
    65      link_error ();
    66    if (__builtin_llabs (ll1) != 1LL)
    67      abort ();
    68    if (__builtin_llabs (1LL) != 1LL)
    69      link_error ();
    70    if (__builtin_llabs (llm1) != 1LL)
    71      abort ();
    72    if (__builtin_llabs (-1LL) != 1LL)
    73      link_error ();
    74    if (__builtin_llabs (llmin) != __LONG_LONG_MAX__)
    75      abort ();
    76    if (__builtin_llabs (-__LONG_LONG_MAX__) != __LONG_LONG_MAX__)
    77      link_error ();
    78    if (__builtin_llabs (llmax) != __LONG_LONG_MAX__)
    79      abort ();
    80    if (__builtin_llabs (__LONG_LONG_MAX__) != __LONG_LONG_MAX__)
    81      link_error ();
    82    if (__builtin_imaxabs (imax0) != 0)
    83      abort ();
    84    if (__builtin_imaxabs (0) != 0)
    85      link_error ();
    86    if (__builtin_imaxabs (imax1) != 1)
    87      abort ();
    88    if (__builtin_imaxabs (1) != 1)
    89      link_error ();
    90    if (__builtin_imaxabs (imaxm1) != 1)
    91      abort ();
    92    if (__builtin_imaxabs (-1) != 1)
    93      link_error ();
    94    if (__builtin_imaxabs (imaxmin) != INTMAX_MAX)
    95      abort ();
    96    if (__builtin_imaxabs (-INTMAX_MAX) != INTMAX_MAX)
    97      link_error ();
    98    if (__builtin_imaxabs (imaxmax) != INTMAX_MAX)
    99      abort ();
   100    if (__builtin_imaxabs (INTMAX_MAX) != INTMAX_MAX)
   101      link_error ();
   102  }