Printing a string Backward, convert case - C++ STL

Description

Printing a string Backward, convert case

Demo Code

#include <iostream>
#include <string>

int main(int argc, const char* argv[]) {
    std::cout << "Enter a string to have it reversed: ";
    std::string input;// w ww. j ava  2s .  co  m

    std::getline(std::cin, input);

    std::string::reverse_iterator it = input.rbegin();

    while (it != input.rend()) {
        int ascii = *(it++);

        if ((ascii >= 97) && (ascii <= 122))
            ascii = (ascii - 32);
        else if ((ascii >= 65) && (ascii <= 90))
            ascii = (ascii + 32);

        char c = ascii;

        std::cout << c;
    }

    std::cout << std::endl;
    return 0;
}

Result

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