1 // RUN: %clang_cc1 %s -fsyntax-only -verify -std=c99 -Wno-sizeof-array-decay 2 // rdar://6095180 3 4 struct s { char c[17]; }; 5 extern struct s foo(void); 6 7 struct s a, b, c; 8 9 int A[sizeof((foo().c)) == 17 ? 1 : -1]; 10 int B[sizeof((a.c)) == 17 ? 1 : -1]; 11 12 13 // comma does array/function promotion in c99. 14 int X[sizeof(0, (foo().c)) == sizeof(char*) ? 1 : -1]; 15 int Y[sizeof(0, (a,b).c) == sizeof(char*) ? 1 : -1]; 16 int Z[sizeof(0, (a=b).c) == sizeof(char*) ? 1 : -1]; // expected-warning {{expression with side effects has no effect in an unevaluated context}} 17 18
