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#define FOO(bar) create_a_really_long_identifier name(some_function( \ bar1 + bar2), bar3, \ bar4); #define multilinemacro do { (x+5); } while (0); \ printf("a multilinemacro"); \ printf("a multilinemacro2"); int main(int argc, char *argv[]) { int a, b; a = 1; /* stupid comment \ * b = 2; */ return(a+b); }