1 // RUN: %clang_cc1 %s -fsyntax-only -verify -std=c89 -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 not promote array/function in c90 unless they are lvalues. 14 int W[sizeof(0, a.c) == sizeof(char*) ? 1 : -1]; 15 int X[sizeof(0, (foo().c)) == 17 ? 1 : -1]; 16 int Y[sizeof(0, (a,b).c) == 17 ? 1 : -1]; 17 int Z[sizeof(0, (a=b).c) == 17 ? 1 : -1]; // expected-warning {{expression with side effects has no effect in an unevaluated context}} 18
