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Complain if -[DIU] is given an empty argument. (Like many compilers over the years, we don't accept the argument appearing in the next argv word.) Warn about this in the man page too.
author David A. Holland
date Tue, 11 Jun 2013 18:32:41 -0400
parents de18d1ac7d34
children
line wrap: on
line source

#if 0
wrong
#endif

#if 1
right
#endif

#if -1
right
#endif

#if 0 + 0
wrong
#endif

#if 1 + 1
right
#endif

#if 1 - 1
wrong
#endif

#if -1 + 1
wrong
#endif

#if 3 - 2 - 1
wrong
#endif

#if 3 * 2 - 6
wrong
#endif

#if 6 - 2 * 3
wrong
#endif

#if 3 - 3 && 1
wrong
#endif

#if 3 - 3 || 0
wrong
#endif

#if 1 && 0
wrong
#endif

#if 0 && 1
wrong
#endif

#if 1 || 0
right
#endif

#if 0 || 1
right
#endif

#if (0 || 1) && (0 || 0)
wrong
#endif