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This is a discussion on Or Questions within the C++ Programming forums, part of the General Programming Boards category; Instead of doing Code: if ( strCookies=="good" || strCookies=="better" ) can you do something like Code: if ( strCookies==("good" || ...

  1. #1
    Registered User
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    Or Questions

    Instead of doing
    Code:
    if ( strCookies=="good" || strCookies=="better" )
    can you do something like
    Code:
    if ( strCookies==("good" || "better") )
    also, is there any way to put multiple items on a case line:

    e.g.
    Code:
    case apples||oranges:
    {
    cout<<"either apples or oranges were in the box"<<endl;
    break;
    }
    Last edited by TenderKitten; 10-16-2011 at 12:39 PM.

  2. #2
    and the hat of int overfl Salem's Avatar
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    > can you do something like
    > if ( strCookies==("good" || "better") )
    You can (syntactically), but it doesn't mean what you want it to mean (namely comparing strCookies with 2 strings).

    > also, is there any way to put multiple items on a case line:
    Yes, you just do
    Code:
    case apples:
    case oranges:
    {
        cout<<"either apples or oranges were in the box"<<endl;
        break;
    }
    TenderKitten likes this.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
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  3. #3
    C++まいる!Cをこわせ!
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    Quote Originally Posted by TenderKitten View Post
    Instead of doing
    Code:
    if ( strCookies=="good" || strCookies=="better" )
    can you do something like
    Code:
    if ( strCookies==("good" || "better") )
    Nope, sorry. You'd have to make a utility function for that.
    Example:
    Code:
    template<typename T1, typename T2, typename T2>
    bool equal(const T1& val1, const T2& val2, const T3& val3)
    {
    	if (val1 == val2) return true;
    	return (val1 == val3);
    }
    
    if (equal(strCookies, "good", "better"))
    	// Do something
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

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