gcc/gcc/testsuite/gcc.dg/c2x-attr-maybe_unused-2.c

25 lines
730 B
C

/* Test C2x maybe_unused attribute: invalid contexts. */
/* { dg-do compile } */
/* { dg-options "-std=c2x -pedantic-errors" } */
/* This attribute is not valid in most cases on types other than their
definitions, or on statements, or as an attribute-declaration. */
[[maybe_unused]]; /* { dg-error "ignored" } */
int [[maybe_unused]] var; /* { dg-error "ignored" } */
int array_with_dep_type[2] [[maybe_unused]]; /* { dg-error "ignored" } */
void fn_with_dep_type () [[maybe_unused]]; /* { dg-error "ignored" } */
int z = sizeof (int [[__maybe_unused__]]); /* { dg-error "ignored" } */
void
f (void)
{
int a;
[[maybe_unused]]; /* { dg-error "ignored" } */
[[maybe_unused]] a = 1; /* { dg-error "ignored" } */
}