1*f4a2713aSLionel Sambuc // RUN: %clang_cc1 %s -fsyntax-only -verify -std=c89 -Wno-sizeof-array-decay 2*f4a2713aSLionel Sambuc // expected-no-diagnostics 3*f4a2713aSLionel Sambuc // rdar://6095180 4*f4a2713aSLionel Sambuc 5*f4a2713aSLionel Sambuc struct s { char c[17]; }; 6*f4a2713aSLionel Sambuc extern struct s foo(void); 7*f4a2713aSLionel Sambuc 8*f4a2713aSLionel Sambuc struct s a, b, c; 9*f4a2713aSLionel Sambuc 10*f4a2713aSLionel Sambuc int A[sizeof((foo().c)) == 17 ? 1 : -1]; 11*f4a2713aSLionel Sambuc int B[sizeof((a.c)) == 17 ? 1 : -1]; 12*f4a2713aSLionel Sambuc 13*f4a2713aSLionel Sambuc 14*f4a2713aSLionel Sambuc // comma does not promote array/function in c90 unless they are lvalues. 15*f4a2713aSLionel Sambuc int W[sizeof(0, a.c) == sizeof(char*) ? 1 : -1]; 16*f4a2713aSLionel Sambuc int X[sizeof(0, (foo().c)) == 17 ? 1 : -1]; 17*f4a2713aSLionel Sambuc int Y[sizeof(0, (a,b).c) == 17 ? 1 : -1]; 18*f4a2713aSLionel Sambuc int Z[sizeof(0, (a=b).c) == 17 ? 1 : -1]; 19