Validate String using functions (C++)

I am writing some code that checks for a string input and finds if it is made up of all digits. There is a function that validates if the string is 10 digits or below and another one to validate if they are all numbers.

Here is my code below:

#include <iostream>  #include <ctime>  #include <time.h>   #include <iomanip>  #include <math.h>    using namespace std;    void inputString(string s);  void checkDigit();    int main() {        string s;        cout<<"Enter a string: "<< endl;      getline(cin, s);              checkDigit();      return 0;  }    void inputString(string s){            do{          if(s.length() > 10 ){             getline(cin, s);           }      }      while(s.length() <= 10);      }    void checkDigit(){        string s;        inputString(s);        for(int i = 0; i < s. length(); i++){          if (s[i] >= '0' && s[i] <= '9'){            cout<<"Valid string"<< endl;        }        else{            cout<<"Not all digits"<< endl;        }        }  }  

https://stackoverflow.com/questions/66809652/validate-string-using-functions-c March 26, 2021 at 09:05AM