// c2011-6-5-16-1-ex.c // original examples and/or notes // (c) ISO/IEC JTC1 SC22 WG14 N1570, April 12, 2011 // C2011 6.5.16.1 Simple assignment // 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 // Example 1 int f(void); int f(void){ char c; /* ... */ return (int)c; } int main(void) { char c; if ((c = f()) == -1) printf("c=%d",c); /* ... */ // Example 2 int i; long l; l = (c = i); printf("%d %d %ld ", c,i,l); // Example 3 const char **cpp; char *p; const char cc = 'A'; cpp = &p; // constraint violation *cpp = &cc; // valid *p = 0; // valid return printf("6.5.16.1 Simple assignment %d %d %d",(int)cpp,(int)p,cc); } //c2011-6-5-16-ex.c:35:5: warning: assigning to 'const char **' from 'char **' discards qualifiers in nested pointer types [-Wincompatible-pointer-types] //cpp = &p; // constraint violation // ^ ~~ //1 warning generated. //output may be //-1 32767 -1 6.5.16.1 Simple assignment 1689193064 1689193063 65