// filename:c2011-7-17-8-ex.c
// original examples and/or notes:
// 		(c) ISO/IEC JTC1 SC22 WG14 N1570, April 12, 2011
// 			C2011 7.17.8 Atomic flag type and operations
// compile and output mechanism:
// 		(c) Ogawa Kiyoshi, kaizen@gifu-u.ac.jp, December.29, 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.
// gcc-4.9 (GCC) 4.9.0 20131229 (experimental)
// Copyright (C) 2013 Free Software Foundation, Inc.
#include <stdio.h>
#include <stdatomic.h>

int main(void)
{
// Example
atomic_flag guard = ATOMIC_FLAG_INIT;

return printf("7.17.8 Atomic flag type and operations %d\n", guard);
}
// warning may be 
// 
// gcc-4.9 output may be
//7.17.8 Atomic flag type and operations 0