Breaking News: Grepper is joining You.com. Read the official announcement!

how to validate if all characters enetred in a string are alphabets and then reprompt user

Blue Bear answered on October 16, 2021 Popularity 1/10 Helpfulness 1/10

answer how to validate if all characters enetred in a string are alphabets and then reprompt user

how to validate if all characters enetred in a string are alphabets and then reprompt user

Comment

#include <iostream>
#include <string>
#include <cctype>

// check for only alphabetical letters in string (or spaces)
bool lettersOrSpaces(const std::string& str)
{
    for (size_t i = 0; i < str.size(); i++)
    {
        // make sure each character is A-Z or a space
        if (! std::isalpha(str[i]) && ! std::isspace(str[i]))
        {
            return false; ///< at least one "no match"
        }
    }
    return true;  ///< all characters meet criteria
}

int main()
{
    std::string townName;
    std::cout << "Enter name of town: ";
    while (std::getline(std::cin, townName) && !lettersOrSpaces(townName))
    {
        std::cout << "Enter the town name - alphabet only: ";
    }
    std::cout << "The name of town is: " << townName << std::endl;

    return 0;
}

Popularity 1/10 Helpfulness 1/10 Language typescript

Source: stackoverflow.com

Tags: string typescript

Link to this answer
Share Copy Link

Contributed on Oct 16 2021

Blue Bear

0 Answers Avg Quality 2/10

how to validate if all characters enetred in a string are alphabets and then reprompt user

Contents

More Related Answers

how to validate if all characters enetred in a string are alphabets and then reprompt user

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.