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No predefined 'header' function in the standard C libraries. There are header files, if that's what you mean.

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โˆ™ 2010-07-06 06:19:16
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Q: What is header function definition in c language?
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Which library file contain the definition of stdioh and conioh header file function definition in C language?

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actually ++ in c++ represents the advanced version of the language 'c'. Whereas c dont has any full form. In c ,c ++ means c =c +1 I think the question goes more to what "function definition" means. C++ (and many other languages) requires that that a function (any symbol really) must be known to the compiler before you actually try to use it. This is called the "function declaration" and simply specifies the signature of the function. The "function definition" then is the actual implementation of the function. You can declare and implement a function at the same time but normally you will split your source code into a header file (.h) containing the declarations and an implementation file (.cpp) containing the the definitions. For example: Declaration: class A { .... void doSomething(); } Definition: void A:doSomething() { // Your implementation here }

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Constants, typedefs, function prototypes. If you want to know more, load it into a text editor.

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You need to #include the header file that contains the missing function's declaration.

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