1  /* Test for builtin abs, labs, llabs, imaxabs.  */
       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 int abs (int);
       9  extern long labs (long);
      10  extern long long llabs (long long);
      11  extern intmax_t imaxabs (intmax_t);
      12  extern void abort (void);
      13  extern void link_error (void);
      14  
      15  void
      16  main_test (void)
      17  {
      18    /* For each type, test both runtime and compile time (constant folding)
      19       optimization.  */
      20    volatile int i0 = 0, i1 = 1, im1 = -1, imin = -INT_MAX, imax = INT_MAX;
      21    volatile long l0 = 0L, l1 = 1L, lm1 = -1L, lmin = -LONG_MAX, lmax = LONG_MAX;
      22    volatile long long ll0 = 0LL, ll1 = 1LL, llm1 = -1LL;
      23    volatile long long llmin = -__LONG_LONG_MAX__, llmax = __LONG_LONG_MAX__;
      24    volatile intmax_t imax0 = 0, imax1 = 1, imaxm1 = -1;
      25    volatile intmax_t imaxmin = -INTMAX_MAX, imaxmax = INTMAX_MAX;
      26    if (abs (i0) != 0)
      27      abort ();
      28    if (abs (0) != 0)
      29      link_error ();
      30    if (abs (i1) != 1)
      31      abort ();
      32    if (abs (1) != 1)
      33      link_error ();
      34    if (abs (im1) != 1)
      35      abort ();
      36    if (abs (-1) != 1)
      37      link_error ();
      38    if (abs (imin) != INT_MAX)
      39      abort ();
      40    if (abs (-INT_MAX) != INT_MAX)
      41      link_error ();
      42    if (abs (imax) != INT_MAX)
      43      abort ();
      44    if (abs (INT_MAX) != INT_MAX)
      45      link_error ();
      46    if (labs (l0) != 0L)
      47      abort ();
      48    if (labs (0L) != 0L)
      49      link_error ();
      50    if (labs (l1) != 1L)
      51      abort ();
      52    if (labs (1L) != 1L)
      53      link_error ();
      54    if (labs (lm1) != 1L)
      55      abort ();
      56    if (labs (-1L) != 1L)
      57      link_error ();
      58    if (labs (lmin) != LONG_MAX)
      59      abort ();
      60    if (labs (-LONG_MAX) != LONG_MAX)
      61      link_error ();
      62    if (labs (lmax) != LONG_MAX)
      63      abort ();
      64    if (labs (LONG_MAX) != LONG_MAX)
      65      link_error ();
      66    if (llabs (ll0) != 0LL)
      67      abort ();
      68    if (llabs (0LL) != 0LL)
      69      link_error ();
      70    if (llabs (ll1) != 1LL)
      71      abort ();
      72    if (llabs (1LL) != 1LL)
      73      link_error ();
      74    if (llabs (llm1) != 1LL)
      75      abort ();
      76    if (llabs (-1LL) != 1LL)
      77      link_error ();
      78    if (llabs (llmin) != __LONG_LONG_MAX__)
      79      abort ();
      80    if (llabs (-__LONG_LONG_MAX__) != __LONG_LONG_MAX__)
      81      link_error ();
      82    if (llabs (llmax) != __LONG_LONG_MAX__)
      83      abort ();
      84    if (llabs (__LONG_LONG_MAX__) != __LONG_LONG_MAX__)
      85      link_error ();
      86    if (imaxabs (imax0) != 0)
      87      abort ();
      88    if (imaxabs (0) != 0)
      89      link_error ();
      90    if (imaxabs (imax1) != 1)
      91      abort ();
      92    if (imaxabs (1) != 1)
      93      link_error ();
      94    if (imaxabs (imaxm1) != 1)
      95      abort ();
      96    if (imaxabs (-1) != 1)
      97      link_error ();
      98    if (imaxabs (imaxmin) != INTMAX_MAX)
      99      abort ();
     100    if (imaxabs (-INTMAX_MAX) != INTMAX_MAX)
     101      link_error ();
     102    if (imaxabs (imaxmax) != INTMAX_MAX)
     103      abort ();
     104    if (imaxabs (INTMAX_MAX) != INTMAX_MAX)
     105      link_error ();
     106  }