integerNumber & digit

gistfile1.cpp

size_t Parser::integerNumber(size_t index) {
    char *c_term = term.c_str();
    if (c_term[index] == '+' || c_term[index] == '-')
        index++;
    
    while (digit(index)) 
        index++;
    
    return index;
}


int Parser::digit(size_t index) {
    char *c_term = term.c_str();
    return isdigit(c_term[index]);
}