// filename:c2011-7-12-3-1-ex.c
// original examples and/or notes:
// 		(c) ISO/IEC JTC1 SC22 WG14 N1570, April 12, 2011
// http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1570.pdf
// 			C2011 7.12.3.1 The fpclassify macro
// compile and output mechanism:
// 		(c) Ogawa Kiyoshi, kaizen@gifu-u.ac.jp, December.29, 2013
// compile errors and/or wornings:
// 1	(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.
// 2    gcc-4.9 (GCC) 4.9.0 20131229 (experimental)
//      Copyright (C) 2013 Free Software Foundation, Inc.
#include <stdio.h>
// #include <math.h>

//#undef fpclassify
// Example
#define fpclassify(x) \
((sizeof (x) == sizeof (float)) ? __fpclassifyf(x) : \
(sizeof (x) == sizeof (double)) ? __fpclassifyd(x) : \
__fpclassifyl(x))

int main(void)
{
return printf("7.12.3.1 The fpclassify macro %d\n", fpclassify(34928348332.2341));
}
// warning may be 
// 7.12.3.1 The fpclassify macro 4