What do I need to include for isalpha()?

[AndroidZ]

Everything I've seen online isn't working.

I need to use isalpha(char). For example:

if (m_parse_success == false){
            return *this;
        }
    size_t pos = 0;
    for (;  pos < m_end; pos++){
        if (isalpha(m_str[pos] && (pos == m_end - 1))){
            m_parse_success = true;
        }
        else if(!(isalpha(m_str[pos]))){
            m_parse_success = false;
        }
    }
    return *this;

[Duthomhas]

Try googling "man isalpha" or just "isalpha" and it will tell you which header to include.

Also, on line 6 you have a closing parenthesis in the wrong place.

Hope this helps.

[AndroidZ]

Got it, thanks. Just had to put std:: in front.