mutare.cpp:10: extraneous `int' ignored mutare.cpp: In function `int main()': mutare.cpp:11: `m' undeclared (first use this function) mutare.cpp:11: (Each undeclared identifier is reported only once for each function it appears in.) mutare.cpp:11: `nr' undeclared (first use this function) mutare.cpp:12: `i' undeclared (first use this function) mutare.cpp:14: `v' undeclared (first use this function)