Thread: How to check if char = "wateva"

hi,

in my program it asks the user a question, the answer the user types is in a word format not a number or digit(eg: Twenty not 20)
The problem is i dont know how to check weather the answer the user typed is correct..heres the code

Code:

#include <iostream.h>
main()
{
     char answer[50];
     cout<<"How many apples did i buy?: ";
     cin.getline(answer,50)
     
     if (answer == twenty)
     {
                cout<<"Correct!";
     }
     std::cin.ignore();
     return 0;
     }

Use strings instead if you're going to bother with C++, really, because they have that == operator at the ready for use. Also, iostream.h makes your compiler look old. Dump that bad habit and use current stuff: you probably need a better compiler.

The user won't write out a number like that unless you tell them to.

Code:

// An improved version of the program! ^_^ Good mood...
#include <iostream>
#include <cctype>
#include <string>
#include <algorithm>

int main (void) {
   std::string answer = "twenty";
   std::cout << "How many apples did I buy? (word answers):";
   std::cin >> answer;
   // This dandy little algorithm transforms a string based on the
   // predicate. I turned everything lower case to make sure it 
   // matches.
   transform(answer.begin(), answer.end(), answer.begin(), ::tolower);

   if(answer != "twenty")
   {
       std::cout << "Sorry, you're wrong\n";
   }
   else 
   {
       std::cout << "Yes, that's correct\n";
   }
   return 0;
}

thanks!