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/* Copyright (C) 2001 Free Software Foundation, Inc.  */

/* { dg-do run } */

/* { dg-options -Wno-multichar } */

/* This tests values and signedness of multichar charconsts.

   Neil Booth, 5 May 2002.  */

#include <limits.h>

extern void abort (void);

int main ()

{

  /* These tests require at least 2-byte ints.  8-)  */

#if INT_MAX > 127

  int scale = (int) (unsigned char) -1 + 1;

  if ('ab' != (int) ((unsigned char) 'a' * scale + (unsigned char) 'b'))

    abort ();

  if ('\234b' != (int) ((unsigned char) '\234' * scale + (unsigned char) 'b'))

    abort ();

  if ('b\234' != (int) ((unsigned char) 'b' * scale + (unsigned char) '\234'))

    abort ();

  /* Multichar charconsts have type int and should be signed.  */

#if INT_MAX == 32767

# if '\234a' > 0

#  error Preprocessor charconsts 1

# endif

  if ('\234a' > 0)

    abort ();

#elif INT_MAX == 2147483647

# if '\234aaa' > 0

#  error Preprocessor charconsts 2

# endif

  if ('\234aaa' > 0)

    abort ();

#elif INT_MAX == 9223372036854775807

# if '\234aaaaaaa' > 0

#  error Preprocessor charconsts 3

# endif

  if ('\234aaaaaaa' > 0)

    abort ();

#endif

#endif

  return 0;

}