modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/execute/960405-1.c (about)

     1  #define X  5.9486574767861588254287966331400356538172e4931L
     2  
     3  long double x = X + X;
     4  long double y = 2.0L * X;
     5  
     6  main ()
     7  {
     8  #if ! defined (__vax__) && ! defined (_CRAY)
     9    if (x != y)
    10      abort ();
    11  #endif
    12    exit (0);
    13  }