error

Hello. When i write this code it shows error " end1 undeclared(first use here)". What does it mean? It is from the book "C++ How To Program Fifth Edition" Im using Dev C++ compiler.

Code:

   
   
   #include <iostream> 
 
  
   int main()
   {
      
      int number1; 
     int number2; 
     int sum; 

     std::cout << "Enter first integer: "; 
     std::cin >> number1; 

     std::cout << "Enter second integer: "; 
     std::cin >> number2; 

    sum = number1 + number2; 

     std::cout << "Sum is " << sum << std::end1; 

     return 0; 

  }

end1 should be endl ("one" versus lowercase "L").

Incidentally, you might want to indent your code a little more consistently to make it easier for you to read later on. For example:

Code:

#include <iostream>


int main()
{

    int number1;
    int number2;
    int sum;

    std::cout << "Enter first integer: ";
    std::cin >> number1;

    std::cout << "Enter second integer: ";
    std::cin >> number2;

    sum = number1 + number2;

    std::cout << "Sum is " << sum << std::end1;

    return 0;

}

Thank you. It works. But still it doesnt show me the sum when i press enter after i write the second number.

You can run the program from the command line instead. If you really wish to run it from Dev-C++, you would need to keep the window open by pausing. One way is to wait for input, e.g.,

Code:

std::cout << "Sum is " << sum << std::end1;

std::cin.ignore(); // Ignore the newline character in the input buffer.
std::cin.get();    // Wait for the user to press enter.

return 0;

Still nothing. I dont know why. I can type first and the second number but after that when i press enter the window just dissappears.

Still nothing. I dont know why. I can type first and the second number but after that when i press enter the window just dissappears.

What is your current code?

http://faq.cprogramming.com/cgi-bin/...&id=1043284385

This is my code.

Code:

#include<iostream>
int main()
{

int number1;
int number2;
int sum;

std::cout<<"Enter first integer:";
std::cin>>number1;

std::cout<<"Enter second integer:";
std::cin>>number2;

sum= number1+number2;

std::cout<<"Sum is"<<sum<<std::endl;

std::cin.get();




return 0;

}

Maybe the code is wrong i dont know i just rewrote this from the book.

The cin.get() is not enough. Notice the cin.ignore() in my example.

Elysia linked to the relevant cprogramming.com FAQ with a more comprehensive explanation and examples. You could also read our cpwiki entry on How to keep a Windows console from closing though it is not quite up to scratch just yet.

I have tried everything but still nothing. The console just keeps closing. Thank you for help anyway.

hmm... that's strange. Try this:

Code:

#include <iostream>
#include <ios>
#include <limits>

int main()
{
    int number1;
    int number2;
    int sum;

    std::cout << "Enter first integer: ";
    std::cin >> number1;

    std::cout << "Enter second integer: ";
    std::cin >> number2;

    sum = number1 + number2;

    std::cout << "Sum is " << sum << std::endl;

    std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
    std::cin.get();

    return 0;
}

Generally, I think it is usually better to just run the program from the command line.

It says no such file directory for ios and limits.

What exact version of Dev-C++ are you using? It should be version 4.9.9.2, otherwise you need to upgrade.

When i install and run new version it says "There doesnt seem to be GNU Make file in PATH or in Dev-C++ Bin path.

I think you need to uninstall the old one before updating.