// c2011-6-5-17-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 6.5.17 Comma operator // compile and output mechanism // (c) Ogawa Kiyoshi, kaizen@gifu-u.ac.jp, December.xx, 2013 // compile errors and/or warnings: // 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 // Example int f(int a, int b, int c){ return a+b*c; } int main(void) { int a,t,c; return printf("6.5.17 Comma operator %d %d\n",f(a, (t=3, t+2), c),t); } // 1. output LLVM3.2 may be // 6.5.17 Comma operator -31144338 3 // 2. output GCC4.9 // 6.5.17 Comma operator 1661845593 3