decrypting ROT13 (vectors)

[Geminias]

i didn't realize you're rot13 function was intended to be a rot13 function. i thought you just dug something up as an example.

yes, it was entirely flawed here's a working source:

c++:

#include <iostream> #include <vector> #include <fstream> #include <iterator> using namespace std; char rot13(char input); int main() {    ifstream file("decrypt.txt");    vector<char> transformed_chars;    transform(istream_iterator<char>(file),              istream_iterator<char>(),              back_inserter(transformed_chars),              rot13);    copy(transformed_chars.begin(),         transformed_chars.end(),         ostream_iterator<char>(cout));    return 0; } char rot13(char input) {    if (input <= 'm' || 'A' <= input && 'M' >= input )    {       return input + 13;    }    else if (input >= 'm' && input <= 'z')    {       return ((input % 77) + 64);    }    else if (input >= 'M' && input <= 'Z')    {       return ((input % 109) + 96);    }    else    {       return input;    } }