// filename:c2011-5-1-1-3-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 5.1.1.3 Diagnostics
// compile and output mechanism:
// 		(c) Ogawa Kiyoshi, kaizen@gifu-u.ac.jp, December.xx, 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>
int main(void){
char i;
int i;
printf("%d", i);
}
// 1. error LLVM 3.2
//error: redefinition of 'i' with a different type: 'int' vs 'char'
//int i;
//    ^
//c2011-5-1-1-3-ex.c:5:6: note: previous definition is here
//char i;
//     ^
//1 error generated.
//constraint error
// 2. error GCC 4.9
//c2011-5-1-1-3-ex.c: In function 'main':
//c2011-5-1-1-3-ex.c:7:5: error: conflicting types for 'i'
// int i;
//     ^
//c2011-5-1-1-3-ex.c:6:6: note: previous declaration of 'i' was here
// char i;
//      ^