1 // RUN: %clang_cc1 -E %s | FileCheck -strict-whitespace %s 2 3 #define M(x, y) #x #y 4 5 M( f(1, 2), g((x=y++, y))) 6 // CHECK: "f(1, 2)" "g((x=y++, y))" 7 8 M( {a=1 , b=2;} ) /* A semicolon is not a comma */ 9 // CHECK: "{a=1" "b=2;}" 10 11 M( <, [ ) /* Passes the arguments < and [ */ 12 // CHECK: "<" "[" 13 14 M( (,), (...) ) /* Passes the arguments (,) and (...) */ 15 // CHECK: "(,)" "(...)" 16 17 #define START_END(start, end) start c=3; end 18 19 START_END( {a=1 , b=2;} ) /* braces are not parentheses */ 20 // CHECK: {a=1 c=3; b=2;} 21 22 /* 23 * To pass a comma token as an argument it is 24 * necessary to write: 25 */ 26 #define COMMA , 27 28 M(a COMMA b, (a, b)) 29 // CHECK: "a COMMA b" "(a, b)" 30 31
