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/* PR c/7652 */
/* { dg-do compile } */
/* { dg-options "-Wall -Wextra -Wpedantic" } */
extern void bar (int);
void
fn (int i)
{
__attribute__((fallthrough)) int j = 0; /* { dg-warning "ignored|attribute not followed" } */
if (j)
__attribute__((fallthrough)); /* { dg-error "invalid use" } */
__attribute__((fallthrough)); /* { dg-error "invalid use" } */
switch (i)
{
__attribute__((fallthrough)); /* { dg-warning "statement will never" } */
case 1:
i++;
__attribute__((fallthrough));
case 2:
if (i) /* { dg-warning "statement may fall through" } */
bar (2);
else
__attribute__((fallthrough));
case 3:
if (i > 1)
__attribute__((fallthrough));
else
return;
case 4:
if (i)
__attribute__((fallthrough)); /* { dg-warning "not preceding" } */
__attribute__((fallthrough));
case 5:
;
__attribute__((fallthrough));
case 6:
if (i) /* { dg-warning "statement may fall through" } */
bar (6);
else
{
__attribute__((fallthrough));
}
case 7:
if (i > 1)
{
__attribute__((fallthrough));
}
else
bar (7); /* { dg-warning "statement may fall through" } */
default:
--j;
}
__attribute__((fallthrough)); /* { dg-error "invalid use" } */
}
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