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/* Test C2x attribute syntax. Invalid use of fallthrough attribute. */
/* { dg-do compile } */
/* { dg-options "-std=c2x -pedantic-errors -Wextra" } */
[[fallthrough]]; /* { dg-error "'fallthrough' attribute at top level" } */
int [[fallthrough]] x; /* { dg-error "ignored" } */
int g () [[fallthrough]]; /* { dg-error "ignored" } */
int array[2] [[fallthrough]]; /* { dg-error "ignored" } */
int z = sizeof (int [[fallthrough]]); /* { dg-error "ignored" } */
int
f (int a)
{
[[fallthrough]] int b = 2; /* { dg-warning "not followed by" } */
/* { dg-error "ignored" "ignored" { target *-*-* } .-1 } */
switch (a)
{
case 1:
b = 1; /* { dg-warning "may fall through" } */
case 2:
b = 2; /* { dg-warning "may fall through" } */
[[fallthrough()]]; /* { dg-error "does not take any arguments" } */
case 3:
b += 7;
break;
case 4:
b = 4; /* { dg-warning "may fall through" } */
[[fallthrough(1)]]; /* { dg-error "does not take any arguments|expected" } */
case 5:
b += 5;
break;
}
[[fallthrough]] return b; /* { dg-error "ignored" } */
}
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