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// 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))
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