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Jul 29th, 2008
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Re: C++ Header Help

Click to Expand / Collapse  Quote originally posted by Aia ...
Look here
I once read an article that said to use cin.get(). What's wrong with that?
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CoolGamer48 is offline Offline
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Jul 29th, 2008
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Re: C++ Header Help

Click to Expand / Collapse  Quote originally posted by Aia ...
Click to Expand / Collapse  Quote originally posted by DanDaMan ...
Now I'm really confused. When I don't include system("PAUSE"); then the console screen just pops up and instantly disappears.
Look here
Or, to keep it on site, look here.
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WaltP is offline Offline
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Jul 30th, 2008
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Re: C++ Header Help

Cool. Thanks for the info links. But I just have one more question. It was mentioned that
Quote ...
#define 'new symbol' 'previously known symbol' will make 'new symbol' and 'previously known symbol' look the same to the compiler.
But in the code that I got from n.aggel, there was #define HEADER_H. That's only one symbol, right? Or is it?
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DanDaMan is offline Offline
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Jul 30th, 2008
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Re: C++ Header Help

As was mentioned in one of the links, you can #define something with no value. The only real use for this is to use the symbol in preprocessor if-statements. One example is the #ifndef code blocks that sparked this discussion.

file1.h
C++ Syntax (Toggle Plain Text)
  1. #ifndef FILE_1
  2. #define FILE_1
  3. //the symbol FILE_1 now has a status of being defined, though it has no value
  4.  
  5. //class and function declarations, etc.
  6. #endif

file2.cpp
C++ Syntax (Toggle Plain Text)
  1. //FILE_1 not defined
  2. #include "file1.h"//code executed
  3. //FILE_1 defined
  4. #include "file1.h"//code not executed twice
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CoolGamer48 is offline Offline
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Jul 30th, 2008
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Re: C++ Header Help

Thanks.
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DanDaMan is offline Offline
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This thread is more than three months old

No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.
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