std

This is a discussion on std within the C++ Programming forums, part of the General Programming Boards category; i see std::cout a lot. is that becaue that dont name using namespace std; at the top?...

  1. #1
    Sir Mister Insane Sako Klinerr1's Avatar
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    std

    i see
    std::cout

    a lot. is that becaue that dont name

    using namespace std; at the top?
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    if it's a small program, declaring a global usage of the std namespace works without problems... but once you get into a complex project, with namespaces of your own, and others, and you've got a million different object scopes, it wont work out so nicely...

    it's just good practice to use std::

    so, just do it now, and later it'll make more sense to you as to why it's good to do it

    but like I said, using namespace std; works you just need to know what it's doing ( :: )

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    hey, where did your dancing Bart go? I liked it!

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    flashing vampire black's Avatar
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    add this line to the top of your code, and you could use cout simply.

    PHP Code:
    #include <iostream> 
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    I think you mean
    PHP Code:
    #include <iostream.h> 

  6. #6
    Registered User Unreg1stered's Avatar
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    <iostream.h> (old version of iostream and it's recornized by old compiler)

    <iostream> (new version and it's unrecornized by old compiler)

  7. #7
    Sir Mister Insane Sako Klinerr1's Avatar
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    Originally posted by d00b
    hey, where did your dancing Bart go? I liked it!
    i wanted to change my avatar i might put it back.. ooooooooo. u gave me an idea...
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    Originally posted by Unreg1stered
    <iostream.h> (old version of iostream and it's recornized by old compiler)

    <iostream> (new version and it's unrecornized by old compiler)
    yup, so if he used <iostream.h> he wouldn't have to worry about namespaces

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    yup, so if he used <iostream.h> he wouldn't have to worry about namespaces
    Instead, he gets to worry about newer compilers not including <iostream.h>. Also, it is perhaps good to keep in mind that for the most part, software is updated for a purpose
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    Sir Mister Insane Sako Klinerr1's Avatar
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    i changed my avatar, i mgiht change it again so its color is closer he to boards colors
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    Registered User GrNxxDaY's Avatar
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    MEEE i want avatar
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    x4000 Ruski's Avatar
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    I've got a nice avatar
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    Registered User GrNxxDaY's Avatar
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    Me too! look mine says N00B
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    Seeking motivation... endo's Avatar
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    Ruski's is the coolest avatar I've ever seen, I'd like one similar but can't be bothered to search for one.

    If std::cout is good practice what about putting using statements at the top instead?

    using std::cout;
    usin std::endl;
    etc, etc
    Couldn't think of anything interesting, cool or funny - sorry.

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    They're fine... what I'm getting at is that it's not good to just slap "using ....." at the top of code because you've been told to, you need to know that it's a shortcut from having to write out the scope of something over and over; that's all I'm saying

    and about the <iostream.h> thing, I wasn't serious about actually using that, I was saying that if you wanted to avoid having to specify the std scope for iostream, that you could use that... but, don't do it

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