unific.cpp: In function 'bool ok(std::string&, std::string)': unific.cpp:26: warning: comparison between signed and unsigned integer expressions unific.cpp:27: warning: array subscript has type 'char' unific.cpp:29: warning: comparison between signed and unsigned integer expressions unific.cpp:30: warning: array subscript has type 'char' unific.cpp:31: warning: array subscript has type 'char' unific.cpp:37: warning: comparison between signed and unsigned integer expressions unific.cpp:38: warning: array subscript has type 'char' unific.cpp:44: warning: comparison between signed and unsigned integer expressions unific.cpp:45: warning: array subscript has type 'char' unific.cpp: In function 'int main()': unific.cpp:104: warning: comparison between signed and unsigned integer expressions unific.cpp:105: warning: array subscript has type 'char' unific.cpp:106: warning: array subscript has type 'char' unific.cpp:107: warning: array subscript has type 'char' unific.cpp:110: warning: array subscript has type 'char'