27 lines
802 B
C
27 lines
802 B
C
/* Test for constant expressions: __builtin_offsetof allowed in
|
|
integer constant expressions but not traditional offsetof
|
|
expansion. */
|
|
/* Origin: Joseph Myers <joseph@codesourcery.com> */
|
|
/* { dg-do compile } */
|
|
/* { dg-options "-std=iso9899:1999 -pedantic-errors -ftrack-macro-expansion=0" } */
|
|
|
|
struct s {
|
|
int a;
|
|
};
|
|
|
|
struct t {
|
|
struct s a;
|
|
int b[2];
|
|
};
|
|
|
|
#define old_offsetof(TYPE, MEMBER) ((__SIZE_TYPE__)(__UINTPTR_TYPE__) &((TYPE *)0)->MEMBER)
|
|
|
|
enum e {
|
|
E1 = old_offsetof (struct s, a), /* { dg-error "constant" } */
|
|
E2 = old_offsetof (struct t, a.a), /* { dg-error "constant" } */
|
|
E3 = old_offsetof (struct t, b[1]), /* { dg-error "constant" } */
|
|
E4 = __builtin_offsetof (struct s, a),
|
|
E5 = __builtin_offsetof (struct t, a.a),
|
|
E6 = __builtin_offsetof (struct t, b[1])
|
|
};
|