In file included from /usr/include/c++/4.9/iosfwd:39:0, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/c++/4.9/bits/stringfwd.h:62:33: error: aggregate ‘std::basic_string<char> std::string’ has incomplete type and cannot be defined typedef basic_string<char> string; ^ /usr/include/c++/4.9/bits/stringfwd.h:68:33: error: aggregate ‘std::basic_string<wchar_t> std::wstring’ has incomplete type and cannot be defined typedef basic_string<wchar_t> wstring; ^ /usr/include/c++/4.9/bits/stringfwd.h:78:34: error: aggregate ‘std::basic_string<char16_t> std::u16string’ has incomplete type and cannot be defined typedef basic_string<char16_t> u16string; ^ /usr/include/c++/4.9/bits/stringfwd.h:81:34: error: aggregate ‘std::basic_string<char32_t> std::u32string’ has incomplete type and cannot be defined typedef basic_string<char32_t> u32string; ^ In file included from /usr/include/wchar.h:36:0, from /usr/include/c++/4.9/cwchar:44, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/stdio.h:48:25: error: aggregate ‘_IO_FILE FILE’ has incomplete type and cannot be defined typedef struct _IO_FILE FILE; ^ /usr/include/stdio.h:64:25: error: aggregate ‘_IO_FILE __FILE’ has incomplete type and cannot be defined typedef struct _IO_FILE __FILE; ^ In file included from /usr/include/c++/4.9/cwchar:44:0, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/wchar.h:106:9: error: ‘__mbstate_t’ does not name a type typedef __mbstate_t mbstate_t; ^ /usr/include/wchar.h:151:38: error: ‘size_t’ is not a type const wchar_t *__restrict __src, size_t __n) ^ /usr/include/wchar.h:159:38: error: ‘size_t’ is not a type const wchar_t *__restrict __src, size_t __n) ^ /usr/include/wchar.h:166:63: error: ‘size_t’ is not a type extern int wcsncmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n) ^ /usr/include/wchar.h:176:4: error: ‘size_t’ is not a type size_t __n) __THROW; ^ In file included from /usr/include/wchar.h:180:0, from /usr/include/c++/4.9/cwchar:44, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/xlocale.h:42:9: error: ‘__locale_t’ does not name a type typedef __locale_t locale_t; ^ In file included from /usr/include/c++/4.9/cwchar:44:0, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/wchar.h:183:5: error: ‘__locale_t’ is not a type __locale_t __loc) __THROW; ^ /usr/include/wchar.h:186:6: error: ‘size_t’ is not a type size_t __n, __locale_t __loc) __THROW; ^ /usr/include/wchar.h:186:18: error: ‘__locale_t’ is not a type size_t __n, __locale_t __loc) __THROW; ^ /usr/include/wchar.h:196:8: error: ‘size_t’ does not name a type extern size_t wcsxfrm (wchar_t *__restrict __s1, ^ /usr/include/wchar.h:207:9: error: ‘__locale_t’ is not a type __locale_t __loc) __THROW; ^ /usr/include/wchar.h:212:8: error: ‘size_t’ does not name a type extern size_t wcsxfrm_l (wchar_t *__s1, const wchar_t *__s2, ^ /usr/include/wchar.h:252:8: error: ‘size_t’ does not name a type extern size_t wcscspn (const wchar_t *__wcs, const wchar_t *__reject) ^ /usr/include/wchar.h:256:8: error: ‘size_t’ does not name a type extern size_t wcsspn (const wchar_t *__wcs, const wchar_t *__accept) ^ /usr/include/wchar.h:287:8: error: ‘size_t’ does not name a type extern size_t wcslen (const wchar_t *__s) __THROW __attribute_pure__; ^ /usr/include/wchar.h:306:8: error: ‘size_t’ does not name a type extern size_t wcsnlen (const wchar_t *__s, size_t __maxlen) ^ [SNIP] /usr/include/c++/4.9/bits/fstream.tcc:934:35: error: ‘cur’ is not a member of ‘std::ios_base’ __testvalid = this->seekoff(0, ios_base::cur, _M_mode) ^ /usr/include/c++/4.9/bits/fstream.tcc:934:50: error: ‘_M_mode’ was not declared in this scope __testvalid = this->seekoff(0, ios_base::cur, _M_mode) ^ /usr/include/c++/4.9/bits/fstream.tcc:941:25: error: ‘_M_state_last’ was not declared in this scope + _M_codecvt->length(_M_state_last, _M_ext_buf, ^ /usr/include/c++/4.9/bits/fstream.tcc:944:15: error: ‘streamsize’ does not name a type const streamsize __remainder = _M_ext_end - _M_ext_next; ^ /usr/include/c++/4.9/bits/fstream.tcc:945:13: error: ‘__remainder’ was not declared in this scope if (__remainder) ^ /usr/include/c++/4.9/bits/fstream.tcc:949:35: error: ‘__remainder’ was not declared in this scope _M_ext_end = _M_ext_buf + __remainder; ^ /usr/include/c++/4.9/bits/fstream.tcc:951:25: error: ‘_M_state_cur’ was not declared in this scope _M_state_last = _M_state_cur = _M_state_beg; ^ /usr/include/c++/4.9/bits/fstream.tcc:951:40: error: ‘_M_state_beg’ was not declared in this scope _M_state_last = _M_state_cur = _M_state_beg; ^ /usr/include/c++/4.9/bits/fstream.tcc:960:2: error: ‘_M_codecvt’ was not declared in this scope _M_codecvt = _M_codecvt_tmp; ^ /usr/include/c++/4.9/bits/fstream.tcc:960:15: error: ‘_M_codecvt_tmp’ was not declared in this scope _M_codecvt = _M_codecvt_tmp; ^ /usr/include/c++/4.9/bits/fstream.tcc:962:2: error: ‘_M_codecvt’ was not declared in this scope _M_codecvt = 0; ^ 

In file included from /usr/include/c++/4.9/iosfwd:39:0, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/c++/4.9/bits/stringfwd.h:62:33: error: aggregate ‘std::basic_string<char> std::string’ has incomplete type and cannot be defined typedef basic_string<char> string; ^ /usr/include/c++/4.9/bits/stringfwd.h:68:33: error: aggregate ‘std::basic_string<wchar_t> std::wstring’ has incomplete type and cannot be defined typedef basic_string<wchar_t> wstring; ^ /usr/include/c++/4.9/bits/stringfwd.h:78:34: error: aggregate ‘std::basic_string<char16_t> std::u16string’ has incomplete type and cannot be defined typedef basic_string<char16_t> u16string; ^ /usr/include/c++/4.9/bits/stringfwd.h:81:34: error: aggregate ‘std::basic_string<char32_t> std::u32string’ has incomplete type and cannot be defined typedef basic_string<char32_t> u32string; ^ In file included from /usr/include/wchar.h:36:0, from /usr/include/c++/4.9/cwchar:44, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/stdio.h:48:25: error: aggregate ‘_IO_FILE FILE’ has incomplete type and cannot be defined typedef struct _IO_FILE FILE; ^ /usr/include/stdio.h:64:25: error: aggregate ‘_IO_FILE __FILE’ has incomplete type and cannot be defined typedef struct _IO_FILE __FILE; ^ In file included from /usr/include/c++/4.9/cwchar:44:0, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/wchar.h:106:9: error: ‘__mbstate_t’ does not name a type typedef __mbstate_t mbstate_t; ^ /usr/include/wchar.h:151:38: error: ‘size_t’ is not a type const wchar_t *__restrict __src, size_t __n) ^ /usr/include/wchar.h:159:38: error: ‘size_t’ is not a type const wchar_t *__restrict __src, size_t __n) ^ /usr/include/wchar.h:166:63: error: ‘size_t’ is not a type extern int wcsncmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n) ^ /usr/include/wchar.h:176:4: error: ‘size_t’ is not a type size_t __n) __THROW; ^ In file included from /usr/include/wchar.h:180:0, from /usr/include/c++/4.9/cwchar:44, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/xlocale.h:42:9: error: ‘__locale_t’ does not name a type typedef __locale_t locale_t; ^ In file included from /usr/include/c++/4.9/cwchar:44:0, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/wchar.h:183:5: error: ‘__locale_t’ is not a type __locale_t __loc) __THROW; ^ /usr/include/wchar.h:186:6: error: ‘size_t’ is not a type size_t __n, __locale_t __loc) __THROW; ^ /usr/include/wchar.h:186:18: error: ‘__locale_t’ is not a type size_t __n, __locale_t __loc) __THROW; ^ /usr/include/wchar.h:196:8: error: ‘size_t’ does not name a type extern size_t wcsxfrm (wchar_t *__restrict __s1, ^ /usr/include/wchar.h:207:9: error: ‘__locale_t’ is not a type __locale_t __loc) __THROW; ^ /usr/include/wchar.h:212:8: error: ‘size_t’ does not name a type extern size_t wcsxfrm_l (wchar_t *__s1, const wchar_t *__s2, ^ /usr/include/wchar.h:252:8: error: ‘size_t’ does not name a type extern size_t wcscspn (const wchar_t *__wcs, const wchar_t *__reject) ^ /usr/include/wchar.h:256:8: error: ‘size_t’ does not name a type extern size_t wcsspn (const wchar_t *__wcs, const wchar_t *__accept) ^ /usr/include/wchar.h:287:8: error: ‘size_t’ does not name a type extern size_t wcslen (const wchar_t *__s) __THROW __attribute_pure__; ^ /usr/include/wchar.h:306:8: error: ‘size_t’ does not name a type extern size_t wcsnlen (const wchar_t *__s, size_t __maxlen) ^ 

[SNIP]

/usr/include/c++/4.9/bits/fstream.tcc:934:35: error: ‘cur’ is not a member of ‘std::ios_base’ __testvalid = this->seekoff(0, ios_base::cur, _M_mode) ^ /usr/include/c++/4.9/bits/fstream.tcc:934:50: error: ‘_M_mode’ was not declared in this scope __testvalid = this->seekoff(0, ios_base::cur, _M_mode) ^ /usr/include/c++/4.9/bits/fstream.tcc:941:25: error: ‘_M_state_last’ was not declared in this scope + _M_codecvt->length(_M_state_last, _M_ext_buf, ^ /usr/include/c++/4.9/bits/fstream.tcc:944:15: error: ‘streamsize’ does not name a type const streamsize __remainder = _M_ext_end - _M_ext_next; ^ /usr/include/c++/4.9/bits/fstream.tcc:945:13: error: ‘__remainder’ was not declared in this scope if (__remainder) ^ /usr/include/c++/4.9/bits/fstream.tcc:949:35: error: ‘__remainder’ was not declared in this scope _M_ext_end = _M_ext_buf + __remainder; ^ /usr/include/c++/4.9/bits/fstream.tcc:951:25: error: ‘_M_state_cur’ was not declared in this scope _M_state_last = _M_state_cur = _M_state_beg; ^ /usr/include/c++/4.9/bits/fstream.tcc:951:40: error: ‘_M_state_beg’ was not declared in this scope _M_state_last = _M_state_cur = _M_state_beg; ^ /usr/include/c++/4.9/bits/fstream.tcc:960:2: error: ‘_M_codecvt’ was not declared in this scope _M_codecvt = _M_codecvt_tmp; ^ /usr/include/c++/4.9/bits/fstream.tcc:960:15: error: ‘_M_codecvt_tmp’ was not declared in this scope _M_codecvt = _M_codecvt_tmp; ^ /usr/include/c++/4.9/bits/fstream.tcc:962:2: error: ‘_M_codecvt’ was not declared in this scope _M_codecvt = 0; ^ 

9,105.44 2,359.37 1,645.94 266.88 points

In file included from /usr/include/c++/4.9/iosfwd:39:0, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/c++/4.9/bits/stringfwd.h:62:33: error: aggregate ‘std::basic_string<char> std::string’ has incomplete type and cannot be defined typedef basic_string<char> string; ^ /usr/include/c++/4.9/bits/stringfwd.h:68:33: error: aggregate ‘std::basic_string<wchar_t> std::wstring’ has incomplete type and cannot be defined typedef basic_string<wchar_t> wstring; ^ In file included from /usr/include/wchar.h:36:0, from /usr/include/c++/4.9/cwchar:44, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/stdio.h:48:25: error: aggregate ‘_IO_FILE FILE’ has incomplete type and cannot be defined typedef struct _IO_FILE FILE; ^ /usr/include/stdio.h:64:25: error: aggregate ‘_IO_FILE __FILE’ has incomplete type and cannot be defined typedef struct _IO_FILE __FILE; ^ In file included from /usr/include/c++/4.9/cwchar:44:0, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/wchar.h:106:9: error: ‘__mbstate_t’ does not name a type typedef __mbstate_t mbstate_t; ^ /usr/include/wchar.h:151:38: error: ‘size_t’ is not a type const wchar_t *__restrict __src, size_t __n) ^ /usr/include/wchar.h:159:38: error: ‘size_t’ is not a type const wchar_t *__restrict __src, size_t __n) ^ /usr/include/wchar.h:166:63: error: ‘size_t’ is not a type extern int wcsncmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n) ^ /usr/include/wchar.h:176:4: error: ‘size_t’ is not a type size_t __n) __THROW; ^ In file included from /usr/include/wchar.h:180:0, from /usr/include/c++/4.9/cwchar:44, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/xlocale.h:42:9: error: ‘__locale_t’ does not name a type typedef __locale_t locale_t; ^ In file included from /usr/include/c++/4.9/cwchar:44:0, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/wchar.h:183:5: error: ‘__locale_t’ is not a type __locale_t __loc) __THROW; ^ [SNIP...] /usr/include/c++/4.9/bits/fstream.tcc:903:8: error: ‘traits_type’ is not a class or namespace if (traits_type::eq_int_type(__tmp, traits_type::eof())) ^ /usr/include/c++/4.9/bits/fstream.tcc:903:33: error: ‘__tmp’ was not declared in this scope if (traits_type::eq_int_type(__tmp, traits_type::eof())) ^ /usr/include/c++/4.9/bits/fstream.tcc:903:40: error: ‘traits_type’ is not a class or namespace  if (traits_type::eq_int_type(__tmp, traits_type::eof()))   ^ /usr/include/c++/4.9/bits/fstream.tcc: In member function ‘virtual void std::basic_filebuf<_CharT, _Traits>::imbue(const std::locale&)’: /usr/include/c++/4.9/bits/fstream.tcc:916:13: error: ‘__codecvt_type’ does not name a type   const __codecvt_type* _M_codecvt_tmp = 0;   ^ /usr/include/c++/4.9/bits/fstream.tcc:917:38: error: ‘std::basic_filebuf<_CharT, _Traits>::__codecvt_type’ cannot appear in a constant-expression if (__builtin_expect(has_facet<__codecvt_type>(__loc), true))   ^ /usr/include/c++/4.9/bits/fstream.tcc:918:2: error: ‘_M_codecvt_tmp’ was not declared in this scope _M_codecvt_tmp = &use_facet<__codecvt_type>(__loc); ^ /usr/include/c++/4.9/bits/fstream.tcc:918:30: error: ‘std::basic_filebuf<_CharT, _Traits>::__codecvt_type’ cannot appear in a constant-expression _M_codecvt_tmp = &use_facet<__codecvt_type>(__loc);   ^ /usr/include/c++/4.9/bits/fstream.tcc:924:25: error: ‘_M_codecvt’ was not declared in this scope   && __check_facet(_M_codecvt).encoding() == -1)  ^ /usr/include/c++/4.9/bits/fstream.tcc:932:13: error: ‘_M_codecvt_tmp’ was not declared in this scope   if (_M_codecvt_tmp  ^ /usr/include/c++/4.9/bits/fstream.tcc:934:35: error: ‘cur’ is not a member of ‘std::ios_base’ __testvalid = this->seekoff(0, ios_base::cur, _M_mode) ^ /usr/include/c++/4.9/bits/fstream.tcc:934:50: error: ‘_M_mode’ was not declared in this scope __testvalid = this->seekoff(0, ios_base::cur, _M_mode) ^ /usr/include/c++/4.9/bits/fstream.tcc:941:25: error: ‘_M_state_last’ was not declared in this scope + _M_codecvt->length(_M_state_last, _M_ext_buf, ^ /usr/include/c++/4.9/bits/fstream.tcc:944:15: error: ‘streamsize’ does not name a type const streamsize __remainder = _M_ext_end - _M_ext_next; ^ /usr/include/c++/4.9/bits/fstream.tcc:945:13: error: ‘__remainder’ was not declared in this scope if (__remainder) ^ /usr/include/c++/4.9/bits/fstream.tcc:949:35: error: ‘__remainder’ was not declared in this scope _M_ext_end = _M_ext_buf + __remainder; ^ /usr/include/c++/4.9/bits/fstream.tcc:951:25: error: ‘_M_state_cur’ was not declared in this scope _M_state_last = _M_state_cur = _M_state_beg; ^ /usr/include/c++/4.9/bits/fstream.tcc:951:40: error: ‘_M_state_beg’ was not declared in this scope _M_state_last = _M_state_cur = _M_state_beg; ^ /usr/include/c++/4.9/bits/fstream.tcc:960:2: error: ‘_M_codecvt’ was not declared in this scope _M_codecvt = _M_codecvt_tmp; ^ /usr/include/c++/4.9/bits/fstream.tcc:960:15: error: ‘_M_codecvt_tmp’ was not declared in this scope _M_codecvt = _M_codecvt_tmp; ^ /usr/include/c++/4.9/bits/fstream.tcc:962:2: error: ‘_M_codecvt’ was not declared in this scope _M_codecvt = 0; ^ 

On my Ubuntu machine, g++-4.9, 901,439 glorious bytes of errors with a filename of a.C. Only 33 bytes of code (with typo), for a score of 901439/33/3 = 9,105.44.

11,126.95 9,105.44 2,359.37 1,645.94 266.88 points

In file included from /usr/include/c++/4.9/iosfwd:39:0, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/c++/4.9/bits/stringfwd.h:62:33: error: aggregate ‘std::basic_string<char> std::string’ has incomplete type and cannot be defined typedef basic_string<char> string; ^ /usr/include/c++/4.9/bits/stringfwd.h:68:33: error: aggregate ‘std::basic_string<wchar_t> std::wstring’ has incomplete type and cannot be defined typedef basic_string<wchar_t> wstring; ^ /usr/include/c++/4.9/bits/stringfwd.h:78:34: error: aggregate ‘std::basic_string<char16_t> std::u16string’ has incomplete type and cannot be defined typedef basic_string<char16_t> u16string; ^ /usr/include/c++/4.9/bits/stringfwd.h:81:34: error: aggregate ‘std::basic_string<char32_t> std::u32string’ has incomplete type and cannot be defined typedef basic_string<char32_t> u32string; ^ In file included from /usr/include/wchar.h:36:0, from /usr/include/c++/4.9/cwchar:44, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/stdio.h:48:25: error: aggregate ‘_IO_FILE FILE’ has incomplete type and cannot be defined typedef struct _IO_FILE FILE; ^ /usr/include/stdio.h:64:25: error: aggregate ‘_IO_FILE __FILE’ has incomplete type and cannot be defined typedef struct _IO_FILE __FILE; ^ In file included from /usr/include/c++/4.9/cwchar:44:0, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/wchar.h:106:9: error: ‘__mbstate_t’ does not name a type typedef __mbstate_t mbstate_t; ^ /usr/include/wchar.h:151:38: error: ‘size_t’ is not a type const wchar_t *__restrict __src, size_t __n) ^ /usr/include/wchar.h:159:38: error: ‘size_t’ is not a type const wchar_t *__restrict __src, size_t __n) ^ /usr/include/wchar.h:166:63: error: ‘size_t’ is not a type extern int wcsncmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n) ^ /usr/include/wchar.h:176:4: error: ‘size_t’ is not a type size_t __n) __THROW; ^ In file included from /usr/include/wchar.h:180:0, from /usr/include/c++/4.9/cwchar:44, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/xlocale.h:42:9: error: ‘__locale_t’ does not name a type typedef __locale_t locale_t; ^ In file included from /usr/include/c++/4.9/cwchar:44:0, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/wchar.h:183:5: error: ‘__locale_t’ is not a type __locale_t __loc) __THROW; ^ /usr/include/wchar.h:186:6: error: ‘size_t’ is not a type size_t __n, __locale_t __loc) __THROW; ^ /usr/include/wchar.h:186:18: error: ‘__locale_t’ is not a type   size_t __n, __locale_t __loc) __THROW;  ^ /usr/include/wchar.h:196:8: error: ‘size_t’ does not name a type extern size_t wcsxfrm (wchar_t *__restrict __s1, ^ /usr/include/wchar.h:207:9: error: ‘__locale_t’ is not a type __locale_t __loc) __THROW;  ^ /usr/include/wchar.h:212:8: error: ‘size_t’ does not name a type extern size_t wcsxfrm_l (wchar_t *__s1, const wchar_t *__s2, ^ /usr/include/wchar.h:252:8: error: ‘size_t’ does not name a type extern size_t wcscspn (const wchar_t *__wcs, const wchar_t *__reject) ^ /usr/include/wchar.h:256:8: error: ‘size_t’ does not name a type extern size_t wcsspn (const wchar_t *__wcs, const wchar_t *__accept) ^ /usr/include/wchar.h:287:8: error: ‘size_t’ does not name a type extern size_t wcslen (const wchar_t *__s) __THROW __attribute_pure__;  ^ /usr/include/wchar.h:306:8: error: ‘size_t’ does not name a type extern size_t wcsnlen (const wchar_t *__s, size_t __maxlen)  ^ [SNIP] /usr/include/c++/4.9/bits/fstream.tcc:934:35: error: ‘cur’ is not a member of ‘std::ios_base’ __testvalid = this->seekoff(0, ios_base::cur, _M_mode) ^ /usr/include/c++/4.9/bits/fstream.tcc:934:50: error: ‘_M_mode’ was not declared in this scope __testvalid = this->seekoff(0, ios_base::cur, _M_mode) ^ /usr/include/c++/4.9/bits/fstream.tcc:941:25: error: ‘_M_state_last’ was not declared in this scope + _M_codecvt->length(_M_state_last, _M_ext_buf, ^ /usr/include/c++/4.9/bits/fstream.tcc:944:15: error: ‘streamsize’ does not name a type const streamsize __remainder = _M_ext_end - _M_ext_next; ^ /usr/include/c++/4.9/bits/fstream.tcc:945:13: error: ‘__remainder’ was not declared in this scope if (__remainder) ^ /usr/include/c++/4.9/bits/fstream.tcc:949:35: error: ‘__remainder’ was not declared in this scope _M_ext_end = _M_ext_buf + __remainder; ^ /usr/include/c++/4.9/bits/fstream.tcc:951:25: error: ‘_M_state_cur’ was not declared in this scope _M_state_last = _M_state_cur = _M_state_beg; ^ /usr/include/c++/4.9/bits/fstream.tcc:951:40: error: ‘_M_state_beg’ was not declared in this scope _M_state_last = _M_state_cur = _M_state_beg; ^ /usr/include/c++/4.9/bits/fstream.tcc:960:2: error: ‘_M_codecvt’ was not declared in this scope _M_codecvt = _M_codecvt_tmp; ^ /usr/include/c++/4.9/bits/fstream.tcc:960:15: error: ‘_M_codecvt_tmp’ was not declared in this scope _M_codecvt = _M_codecvt_tmp; ^ /usr/include/c++/4.9/bits/fstream.tcc:962:2: error: ‘_M_codecvt’ was not declared in this scope _M_codecvt = 0; ^ 

On my Ubuntu machine, g++-4.9 -std=c++11 -c a.C generates 1,101,568 glorious bytes of errors, for a score of 1101568/33/3 = 11,126.95.

2,359.37 1,645.94 266.88 points

#define cha #include<fstream> 

#define char #include<fstream> 

In file included from /usr/include/c++/4.9/iosfwd:39:0, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/c++/4.9/bits/stringfwd.h:59:37: error: wrong number of template arguments (0, should be 1) template<> struct char_traits<char>; ^ /usr/include/c++/4.9/bits/stringfwd.h:53:12: error: provided for ‘template<class _CharT> struct std::char_traits’ struct char_traits; ^ /usr/include/c++/4.9/bits/stringfwd.h:62:28: error: wrong number of template arguments (0, should be 3) typedef basic_string<char> string;  ^ /usr/include/c++/4.9/bits/stringfwd.h:57:11: error: provided for ‘template<class _CharT, class _Traits, class _Alloc> class std::basic_string’ class basic_string; ^ /usr/include/c++/4.9/bits/stringfwd.h:62:39: error: invalid type in declaration before ‘;’ token typedef basic_string<char> string; ^ In file included from /usr/include/c++/4.9/cwchar:44:0, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/wchar.h:92:10: error: ‘__wchb’ does not name a type char __wchb[4]; ^ In file included from /usr/include/c++/4.9/cwchar:44:0, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38,  from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/wchar.h:370:30: error: expected primary-expression before ‘__restrict’ extern size_t wcrtomb (char *__restrict __s, wchar_t __wc, ^ /usr/include/wchar.h:370:46: error: expected primary-expression before ‘wchar_t’ extern size_t wcrtomb (char *__restrict __s, wchar_t __wc, ^ /usr/include/wchar.h:371:20: error: expected primary-expression before ‘*’ token mbstate_t *__restrict __ps) __THROW; ^ /usr/include/wchar.h:371:21: error: expected primary-expression before ‘__restrict’ mbstate_t *__restrict __ps) __THROW; ^ /usr/include/wchar.h:371:36: error: expression list treated as compound expression in initializer [-fpermissive] mbstate_t *__restrict __ps) __THROW; ^ [SNIP...] In file included from /usr/include/c++/4.9/ios:38:0,  from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/c++/4.9/iosfwd:111:11: error: provided for ‘template<class _CharT, class _Traits> class std::basic_ifstream’ class basic_ifstream; ^ In file included from /usr/include/c++/4.9/fstream:939:0, from a.C:2: /usr/include/c++/4.9/bits/fstream.tcc:970:44: error: wrong number of template arguments (0, should be 2) extern template class basic_ofstream<char>;  ^ In file included from /usr/include/c++/4.9/ios:38:0, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38,  from a.C:2: /usr/include/c++/4.9/iosfwd:114:11: error: provided for ‘template<class _CharT, class _Traits> class std::basic_ofstream’ class basic_ofstream; ^ In file included from /usr/include/c++/4.9/fstream:939:0,  from a.C:2: /usr/include/c++/4.9/bits/fstream.tcc:971:43: error: wrong number of template arguments (0, should be 2) extern template class basic_fstream<char>;  ^ In file included from /usr/include/c++/4.9/ios:38:0, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/c++/4.9/iosfwd:117:11: error: provided for ‘template<class _CharT, class _Traits> class std::basic_fstream’ class basic_fstream; ^ 

On my Ubuntu machine, g++-4.9, 212,343 glorious bytes of errors with a filename of a.C. Only 30 bytes of code (with typo), for a score of 212343/30/3 = 2,359.37.

9,105.44 2,359.37 1,645.94 266.88 points

#define typedf #include<fstream> 

#define typedef #include<fstream> 

In file included from /usr/include/c++/4.9/iosfwd:39:0, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/c++/4.9/bits/stringfwd.h:62:33: error: aggregate ‘std::basic_string<char> std::string’ has incomplete type and cannot be defined typedef basic_string<char> string; ^ /usr/include/c++/4.9/bits/stringfwd.h:68:33: error: aggregate ‘std::basic_string<wchar_t> std::wstring’ has incomplete type and cannot be defined typedef basic_string<wchar_t> wstring;  ^ In file included from /usr/include/wchar.h:36:0, from /usr/include/c++/4.9/cwchar:44, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/stdio.h:48:25: error: aggregate ‘_IO_FILE FILE’ has incomplete type and cannot be defined typedef struct _IO_FILE FILE;  ^ /usr/include/stdio.h:64:25: error: aggregate ‘_IO_FILE __FILE’ has incomplete type and cannot be defined  typedef struct _IO_FILE __FILE;  ^ In file included from /usr/include/c++/4.9/cwchar:44:0, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/wchar.h:106:9: error: ‘__mbstate_t’ does not name a type  typedef __mbstate_t mbstate_t; ^ /usr/include/wchar.h:151:38: error: ‘size_t’ is not a type const wchar_t *__restrict __src, size_t __n)   ^ /usr/include/wchar.h:159:38: error: ‘size_t’ is not a type const wchar_t *__restrict __src, size_t __n)  ^ /usr/include/wchar.h:166:63: error: ‘size_t’ is not a type extern int wcsncmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n)   ^ /usr/include/wchar.h:176:4: error: ‘size_t’ is not a type size_t __n) __THROW; ^ In file included from /usr/include/wchar.h:180:0, from /usr/include/c++/4.9/cwchar:44, from /usr/include/c++/4.9/bits/postypes.h:40, from /usr/include/c++/4.9/iosfwd:40, from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/xlocale.h:42:9: error: ‘__locale_t’ does not name a type  typedef __locale_t locale_t; ^ In file included from /usr/include/c++/4.9/cwchar:44:0,  from /usr/include/c++/4.9/bits/postypes.h:40,  from /usr/include/c++/4.9/iosfwd:40,   from /usr/include/c++/4.9/ios:38, from /usr/include/c++/4.9/istream:38, from /usr/include/c++/4.9/fstream:38, from a.C:2: /usr/include/wchar.h:183:5: error: ‘__locale_t’ is not a type __locale_t __loc) __THROW; ^ [SNIP...] /usr/include/c++/4.9/bits/fstream.tcc:903:8: error: ‘traits_type’ is not a class or namespace if (traits_type::eq_int_type(__tmp, traits_type::eof())) ^ /usr/include/c++/4.9/bits/fstream.tcc:903:33: error: ‘__tmp’ was not declared in this scope if (traits_type::eq_int_type(__tmp, traits_type::eof())) ^ /usr/include/c++/4.9/bits/fstream.tcc:903:40: error: ‘traits_type’ is not a class or namespace if (traits_type::eq_int_type(__tmp, traits_type::eof())) ^ /usr/include/c++/4.9/bits/fstream.tcc: In member function ‘virtual void std::basic_filebuf<_CharT, _Traits>::imbue(const std::locale&)’: /usr/include/c++/4.9/bits/fstream.tcc:916:13: error: ‘__codecvt_type’ does not name a type const __codecvt_type* _M_codecvt_tmp = 0; ^ /usr/include/c++/4.9/bits/fstream.tcc:917:38: error: ‘std::basic_filebuf<_CharT, _Traits>::__codecvt_type’ cannot appear in a constant-expression if (__builtin_expect(has_facet<__codecvt_type>(__loc), true))   ^ /usr/include/c++/4.9/bits/fstream.tcc:918:2: error: ‘_M_codecvt_tmp’ was not declared in this scope _M_codecvt_tmp = &use_facet<__codecvt_type>(__loc); ^ /usr/include/c++/4.9/bits/fstream.tcc:918:30: error: ‘std::basic_filebuf<_CharT, _Traits>::__codecvt_type’ cannot appear in a constant-expression _M_codecvt_tmp = &use_facet<__codecvt_type>(__loc);  ^ /usr/include/c++/4.9/bits/fstream.tcc:924:25: error: ‘_M_codecvt’ was not declared in this scope && __check_facet(_M_codecvt).encoding() == -1) ^ /usr/include/c++/4.9/bits/fstream.tcc:932:13: error: ‘_M_codecvt_tmp’ was not declared in this scope if (_M_codecvt_tmp ^ /usr/include/c++/4.9/bits/fstream.tcc:934:35: error: ‘cur’ is not a member of ‘std::ios_base’ __testvalid = this->seekoff(0, ios_base::cur, _M_mode) ^ /usr/include/c++/4.9/bits/fstream.tcc:934:50: error: ‘_M_mode’ was not declared in this scope __testvalid = this->seekoff(0, ios_base::cur, _M_mode) ^ /usr/include/c++/4.9/bits/fstream.tcc:941:25: error: ‘_M_state_last’ was not declared in this scope + _M_codecvt->length(_M_state_last, _M_ext_buf, ^ /usr/include/c++/4.9/bits/fstream.tcc:944:15: error: ‘streamsize’ does not name a type const streamsize __remainder = _M_ext_end - _M_ext_next; ^ /usr/include/c++/4.9/bits/fstream.tcc:945:13: error: ‘__remainder’ was not declared in this scope if (__remainder) ^ /usr/include/c++/4.9/bits/fstream.tcc:949:35: error: ‘__remainder’ was not declared in this scope _M_ext_end = _M_ext_buf + __remainder; ^ /usr/include/c++/4.9/bits/fstream.tcc:951:25: error: ‘_M_state_cur’ was not declared in this scope _M_state_last = _M_state_cur = _M_state_beg; ^ /usr/include/c++/4.9/bits/fstream.tcc:951:40: error: ‘_M_state_beg’ was not declared in this scope _M_state_last = _M_state_cur = _M_state_beg; ^ /usr/include/c++/4.9/bits/fstream.tcc:960:2: error: ‘_M_codecvt’ was not declared in this scope _M_codecvt = _M_codecvt_tmp; ^ /usr/include/c++/4.9/bits/fstream.tcc:960:15: error: ‘_M_codecvt_tmp’ was not declared in this scope _M_codecvt = _M_codecvt_tmp; ^ /usr/include/c++/4.9/bits/fstream.tcc:962:2: error: ‘_M_codecvt’ was not declared in this scope _M_codecvt = 0;  ^ 

On my Ubuntu machine, g++-4.9, 901,439 glorious bytes of errors with a filename of a.C. Only 33 bytes of code (with typo), for a score of 901439/33/3 = 9,105.44.