View Compilation Error

0_0_8131843_8247.cpp: In function `void CD()':
0_0_8131843_8247.cpp:67: error: no matching function for call to `cmp_dir::cmp_dir(std::basic_string<char, std::char_traits<char>, std::allocator<char> >)'
0_0_8131843_8247.cpp:33: note: candidates are: cmp_dir::cmp_dir(const cmp_dir&)
0_0_8131843_8247.cpp:36: note:                 cmp_dir::cmp_dir(std::string&)
0_0_8131843_8247.cpp: In function `void MD()':
0_0_8131843_8247.cpp:83: error: `cmp' undeclared (first use this function)
0_0_8131843_8247.cpp:83: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_8131843_8247.cpp: In function `void RD()':
0_0_8131843_8247.cpp:100: error: `cmp' undeclared (first use this function)