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

     1  /* The composite type of int and an enum compatible with int might be
     2     either of the two types, but it isn't an unsigned type.  */
     3  /* Origin: Joseph Myers <jsm@polyomino.org.uk> */
     4  
     5  #include <limits.h>
     6  
     7  #include <stdio.h>
     8  
     9  extern void abort (void);
    10  extern void exit (int);
    11  
    12  enum e { a = INT_MIN };
    13  
    14  int *p;
    15  enum e *q;
    16  int
    17  main (void)
    18  {
    19    enum e x = a;
    20    q = &x;
    21    if (*(1 ? q : p) > 0)
    22      abort ();
    23    exit (0);
    24  }