| // RUN: clang-cc -E %s | grep -F '"f(1, 2)" "g((x=y++, y))"' && |
| // RUN: clang-cc -E %s | grep -F '"{a=1" "b=2;}"' && |
| // RUN: clang-cc -E %s | grep -F '"<" "["' && |
| // RUN: clang-cc -E %s | grep -F '"(,)" "(...)"' && |
| // RUN: clang-cc -E %s | grep -F '{a=1 c=3; b=2;}' && |
| // RUN: clang-cc -E %s | grep -F '"a COMMA b" "(a, b)"' |
| |
| #define M(x, y) #x #y |
| |
| M( f(1, 2), g((x=y++, y))) |
| M( {a=1 , b=2;} ) /* A semicolon is not a comma */ |
| M( <, [ ) /* Passes the arguments < and [ */ |
| M( (,), (...) ) /* Passes the arguments (,) and (...) */ |
| |
| #define START_END(start, end) start c=3; end |
| |
| START_END( {a=1 , b=2;} ) /* braces are not parentheses */ |
| |
| /* |
| * To pass a comma token as an argument it is |
| * necessary to write: |
| */ |
| #define COMMA , |
| |
| M(a COMMA b, (a, b)) |
| |
