Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/c2x-attr-syntax-3.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
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date | Thu, 13 Feb 2020 11:34:05 +0900 |
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/* Test C2x attribute syntax. Invalid uses of attributes. */ /* { dg-do compile } */ /* { dg-options "-std=c2x -pedantic-errors" } */ /* Prefix attributes not allowed on declarations without declarators. */ [[]] struct s { int a; }; /* { dg-error "empty declaration" } */ [[]] union u { int a; }; /* { dg-error "empty declaration" } */ void f1 (void) { [[]] struct t { int a; }; /* { dg-error "empty declaration" } */ } /* Prefix attributes not allowed on _Static_assert. */ [[]] _Static_assert (1); /* { dg-error "expected" } */ void f2 (void) { [[]] _Static_assert (1); /* { dg-error "expected" } */ } /* Declarations, including attribute declarations, cannot appear after labels. */ void f3 (void) { x: [[]];; /* { dg-error "can only be part of a statement" } */ } /* Prefix attributes cannot appear on type names. */ int z = sizeof ([[]] int); /* { dg-error "expected" } */ /* Attributes are not allowed after struct, union or enum, except when the type contents are being defined or the declaration is just "struct-or-union atribute-specifier-sequence identifier;". */ const struct [[]] s2; /* { dg-warning "useless type qualifier" } */ /* { dg-error "invalid use of attributes in empty declaration" "invalid" { target *-*-* } .-1 } */ const union [[]] u2; /* { dg-warning "useless type qualifier" } */ /* { dg-error "invalid use of attributes in empty declaration" "invalid" { target *-*-* } .-1 } */ struct [[]] s3 *sv; /* { dg-error "expected" } */ union [[]] u3 *uv; /* { dg-error "expected" } */ enum e { E1 }; enum [[]] e *ev; /* { dg-error "expected" } */