// "System header" for testing that -Wunused-value is properly suppressed in
// certain cases.
#define POSSIBLY_BAD_MACRO(x) \
{ int i = x; \
i; }
#define STATEMENT_EXPR_MACRO(x) \
(__extension__ \
({int i = x; \
i;}))
#define COMMA_MACRO_1(x, y) \
{x, y;}
#define COMMA_MACRO_2(x, y) \
if (x) { 1 == 2, y; }
#define COMMA_MACRO_3(x, y) \
(x, y)
#define COMMA_MACRO_4(x, y) \
( 1 == 2, y )