questions about if, or, not, and etc

This is a discussion on questions about if, or, not, and etc within the C++ Programming forums, part of the General Programming Boards category; Code: #include <iostream> using namespace std; int main() { int ggg; cout <<"enter a number\n"; cin>>ggg; cin.ignore(); if (ggg == ...

  1. #1
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    questions about if, or, not, and etc

    Code:
    #include <iostream>
    using namespace std;
    int main()
    {
    	int ggg;
    	cout <<"enter a number\n";
    	cin>>ggg;
    	cin.ignore();
    	if (ggg == 776 && 777){
    		cout <<"you entered 776 or 777";
    	}
    	else {
    		cout <<"bah\n";
    	}
    	cin.get();
    }
    I think you get the idea of what im TRYING to do.
    now, taking this idea can someone show me how to use it correctly? also with or/not
    thanks! im a little confused while reading the tutorial

  2. #2
    gin
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    Hmm...? gin's Avatar
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    Well I assume you want to check if they enter 776 or 777, yes? Well you need to use the || (logical OR operator).

    EDIT: Also, think about how you've wrote your if statement. This is what it will do as you've wrote it:

    It will check if ggg equals 776, if this is true it will turn "ggg == 776" into 1. Now any other value other than 0 is true, so 777 turns into 1. So the if statement is:

    Code:
    if (1 && 1)
    {
        //1 && 1 = true so this will execute
    }
    Last edited by gin; 07-06-2008 at 03:27 PM.

  3. #3
    Registered User hk_mp5kpdw's Avatar
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    Code:
    if ( ggg == 776 || ggg == 777)
    {
        cout <<"you entered 776 or 777";
    }
    "Owners of dogs will have noticed that, if you provide them with food and water and shelter and affection, they will think you are god. Whereas owners of cats are compelled to realize that, if you provide them with food and water and shelter and affection, they draw the conclusion that they are gods."
    -Christopher Hitchens

  4. #4
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    awesome thanks for the help

  5. #5
    gin
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    Hmm...? gin's Avatar
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    You should give this a read:
    http://www.cprogramming.com/tutorial/lesson2.html

    To better your understanding of conditional statements and conditional expressions. Once you understand the last part of that tutorial it gets really easy.

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