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/* { dg-do compile } */
/* { dg-options "-Wunused -W" } */
int
f1 (unsigned int x)
{
int c = ({ union { unsigned int a; int b; } u; u.a = x; u.b; });
return c;
}
void
f2 (void)
{
struct S { int i; } a;
int b[1];
a.i = 1;
a.i; /* { dg-warning "no effect" } */
b[0] = 1;
b[0]; /* { dg-warning "no effect" } */
}
void
f3 (void)
{
struct S { int i; } a; /* { dg-warning "set but not used" } */
int b[1]; /* { dg-warning "set but not used" } */
a.i = 1;
b[0] = 1;
}
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