1 #ifdef TEST1 2 // RUN: %clang_cc1 -E %s -DTEST1 | FileCheck -strict-whitespace %s 3 4 #define M(x, y) #x #y 5 6 M( f(1, 2), g((x=y++, y))) 7 // CHECK: "f(1, 2)" "g((x=y++, y))" 8 9 M( {a=1 , b=2;} ) /* A semicolon is not a comma */ 10 // CHECK: "{a=1" "b=2;}" 11 12 M( <, [ ) /* Passes the arguments < and [ */ 13 // CHECK: "<" "[" 14 15 M( (,), (...) ) /* Passes the arguments (,) and (...) */ 16 // CHECK: "(,)" "(...)" 17 18 #define START_END(start, end) start c=3; end 19 20 START_END( {a=1 , b=2;} ) /* braces are not parentheses */ 21 // CHECK: {a=1 c=3; b=2;} 22 23 /* 24 * To pass a comma token as an argument it is 25 * necessary to write: 26 */ 27 #define COMMA , 28 29 M(a COMMA b, (a, b)) 30 // CHECK: "a COMMA b" "(a, b)" 31 32 #endif 33 34 #ifdef TEST2 35 // RUN: %clang_cc1 -fsyntax-only -verify %s -DTEST2 36 37 #define HASH # 38 #define INVALID() # 39 // expected-error@-1{{'#' is not followed by a macro parameter}} 40 41 #endif 42