1 // Assorted macros to help test #include behavior across file boundaries. 2 3 #define helper1 0 4 5 void helper2(const char *, ...); 6 7 #define M1(a, ...) helper2(a, ##__VA_ARGS__); 8 9 // Note: M2 stresses vararg macro functions with macro arguments. The spelling 10 // locations of the args used to be set to the expansion site, leading to 11 // crashes (region LineEnd < LineStart). The regression test requires M2's line 12 // number to be greater than the line number containing the expansion. 13 #define M2(a, ...) M1(a, helper1, ##__VA_ARGS__); 14