/C++/C++ function for checking if a sting is a number

C++ function for checking if a sting is a number

bool is_number(const std::string& s)
{
    std::string::const_iterator it = s.begin();
    while (it != s.end() && std::isdigit(*it)) ++it;
    return !s.empty() && it == s.end();
}

Source: stackoverflow.com

C++ function for checking if a sting is a number

bool isParam (string line)
{
    if (isdigit(atoi(line.c_str())))
        return true;

    return false;
}

Source: stackoverflow.com

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