// filename:c2011-6-10-1-ex.c
// original examples and/or notes:
// 		(c) ISO/IEC JTC1 SC22 WG14 N1570, April 12, 2011
// 			C2011 6.10.1 Conditional inclusion
// compile and output mechanism:
// 		(c) Ogawa Kiyoshi, kaizen@gifu-u.ac.jp, December.xx, 2013
// compile errors and/or wornings:
// 		(c) Apple LLVM version 4.2 (clang-425.0.27) (based on LLVM 3.2svn)
// 			Target: x86_64-apple-darwin11.4.2 //Thread model: posix
// 		(c) LLVM 2003-2009 University of Illinois at Urbana-Champaign.
#include <stdio.h>

int main(void)
{
// Example 
#if 'z' - 'a' == 25
printf("#if 'z' - 'a' == 25\n");
#endif
if ('z' - 'a' == 25) printf("if 'z' - 'a' == 25\n");
return printf("6.10.1 Conditional inclusion\n");	
}
// output may be
//#if 'z' - 'a' == 25
//if 'z' - 'a' == 25
//6.10.1 Conditional inclusion