palindrome.h

#ifndef CPP_ALGORITHM_PALINDROME_H
#define CPP_ALGORITHM_PALINDROME_H

#include <string>

namespace Palindrome
{
    /**
     * \brief Check if a string is palindromic.
     * Use one pointer to iterate half of the string.
     * \param str input string
     * \return true if the string is palindromic, false otherwise
     */
    auto IsPalindromic1(const std::string& str) -> bool;

    /**
     * \brief Check if a string is palindromic.
     * Use two pointers to iterate the string. One pointer starts from the beginning, the other starts from the end.
     * \param str input string
     * \return true if the string is palindromic, false otherwise
     */
    auto IsPalindromic2(const std::string& str) -> bool;
}

#endif