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Why there is no need to include header files in c but it requires header files if saved with the extension of .cpp?
Not sure what you mean by not including header files in C. If header files contain declarations that are vital to your code, then you must include them. The same is true in C and C++, regardless of the file extension. Generally speaking, source files (.c and .cpp files) need to include all required headers (.h or .hpp files) while the headers themselves need only make forward declarations (known as incomplete types). There are exceptions, however. You cannot declare values of an incomplete type (only pointers and references can be incomplete), nor can you dereference an incomplete type. You also cannot derive a new class from an incomplete base class. Thus if any header falls into any of these categories then they must include the required headers rather than simply forward declare the incomplete types. Template classes are also regarded as incomplete if the entire definition is not available at the point of instantiation. For this reason, class templates cannot be split between header and source files like normal classes (the entire definition must be placed in the header) and the header must be included prior to each instantiation. Similarly with template functions.
Where headers files are generally stored?
It depends on the header file and on the general organization of the project. System header files, such as stdio.h or windows.h, are stored in a directory that the compiler knows about, but that you don't need to even think about. Library header files are either stored in the same place that system header files are stored, or they are stored in a place reserved for the particular library. In the latter case, there will usually be build parameters that identify the header files and their associated library files. User header files are either stored in the same directory as the source files, or they can be stored in a related directory, somewhere in the project directory tree. well in most of the DOS/Windows C/C++ compilers predefined header files are stored in INCLUDE directory of the folder containing the compiler
What Java header file meaning?
Source code written in Java is simple. There is no preprocessor, no #define and related capabilities, no typedef, and absent those features, no longer any need for header files. Instead of header files, Java language source files provide the declarations of other classes and their methods.
How can you create a headerfile in a c?
Create the header file as a .h file in the same way you create a source file, .c and place it in the same directory as the .c files. To incorporate it, use the... #include "my_header_file.h" ... directive. Note that there are double quotes instead of greater/less signs. This tells the compiler to look first in the source directory.
What are the uses of macros?
With macros, you can perform long or boring tasks just by a single click or keystroke combination. Also, you would not need to repeat the same action over and over again.
Why are header files not required when using far and near pointers?
In C programming, header files are required. It doesn't matter if you are using near pointers, far pointers, both, or neither -- you still need header files. There is no connection between the necessity of header files and the pointers' size.
Why there is no need to include header files in c but it requires header files if saved with the extension of .cpp?
Not sure what you mean by not including header files in C. If header files contain declarations that are vital to your code, then you must include them. The same is true in C and C++, regardless of the file extension. Generally speaking, source files (.c and .cpp files) need to include all required headers (.h or .hpp files) while the headers themselves need only make forward declarations (known as incomplete types). There are exceptions, however. You cannot declare values of an incomplete type (only pointers and references can be incomplete), nor can you dereference an incomplete type. You also cannot derive a new class from an incomplete base class. Thus if any header falls into any of these categories then they must include the required headers rather than simply forward declare the incomplete types. Template classes are also regarded as incomplete if the entire definition is not available at the point of instantiation. For this reason, class templates cannot be split between header and source files like normal classes (the entire definition must be placed in the header) and the header must be included prior to each instantiation. Similarly with template functions.
Need of preprosser in c language?
to include the header files.
How do you create a user defined header file?
Header files are not much different from usual cpp files. There are basically two different things. It's file extension: you need to choose "header file" when you create it or save as .h file. Second is header files do not have main() function. When you are done with you header file do not forger to include it in your project by writing preprocessor directive:#include "your_header_file.h"
Where headers files are generally stored?
It depends on the header file and on the general organization of the project. System header files, such as stdio.h or windows.h, are stored in a directory that the compiler knows about, but that you don't need to even think about. Library header files are either stored in the same place that system header files are stored, or they are stored in a place reserved for the particular library. In the latter case, there will usually be build parameters that identify the header files and their associated library files. User header files are either stored in the same directory as the source files, or they can be stored in a related directory, somewhere in the project directory tree. well in most of the DOS/Windows C/C++ compilers predefined header files are stored in INCLUDE directory of the folder containing the compiler
What Java header file meaning?
Source code written in Java is simple. There is no preprocessor, no #define and related capabilities, no typedef, and absent those features, no longer any need for header files. Instead of header files, Java language source files provide the declarations of other classes and their methods.
How is possible to addition of two number without including header file in C language?
You do not need a header file to add two numbers in C. You do need the header files if you want to use the run-time library, which includes the ability to format and display the result.
How do you do documentation in a c program?
Documentation is usually provided by header files. Header files describe the interface of a library, or at least some part of it, and are usually self-contained. The source code is typically (but not always) embellished with user-comments to assist the reader, however the code alone is all that is needed to describe the interface. Well-designed interfaces are largely self-documenting and require very little commentary. In addition to the header files, a library may also include additional documentation via text files, PDFs or system help files. These usually provide more in-depth technical information appropriate to the user of the library, such as how to install the library, and may include example code. However, for trivial libraries, the header files alone should provide all the information you need.
How can you create a headerfile in a c?
Create the header file as a .h file in the same way you create a source file, .c and place it in the same directory as the .c files. To incorporate it, use the... #include "my_header_file.h" ... directive. Note that there are double quotes instead of greater/less signs. This tells the compiler to look first in the source directory.
I am coding OpenGL game I have to include some header files to use in many files. so that I'd an error . function template has already been defined ... any hints here?
Place header guards around your header files to prevent them being included more than once during a compilation, regardless of how many files include them.E.g., if your header file is called MyClass.h, use the following template:#ifndef _MYCLASS_H_#define _MYCLASS_H_// all header code goes here#endif _MYCLASS_H_Header guards are typically in all upper case (as per all macro definitions) based upon the filename with leading and trailing underscores and an underscore replacing the period.Microsoft C++ also permits the use of the #pragma oncecompiler directive to achieve the same end. Most programmers use both conventions for portability.Note that not all headers need to include other headers. Forward declarations often suffice for headers unless the header requires access to a concrete type. As a rule of thumb, use a forward declaration in the header and an include in the source file. If the compiler complains about incomplete types within your header, include the required header in your header, remove the forward declaration, and remove the include from the source.
What are the uses of macros?
With macros, you can perform long or boring tasks just by a single click or keystroke combination. Also, you would not need to repeat the same action over and over again.
Will I need a header for bikini tops for jeeps?
Yes, you will need a header for bikini top on your Jeep. To look at header bikini tops you can check out www.jeep4x4center.com. They have a great selection of jeep products that also provide information.
