A global variable that must be accessed from more than one file can and should be declared in a header file. In addition, such a variable must be defined in one source file. Variables should not be defined
Latest Answer : A variable can be declare/define in a C Header without any kind of compilational/ logical errors. But it is against the coding specifications and it is not normally practiced. If proper Multiple inclusion protection macro is used, then there will be no ...
You can’t declare a static variable without defining it as well (this is because the storage class modifiers static and extern are mutually exclusive). A static variable can be defined in a header
Latest Answer : In CThe scope of static variable is file. ie., if declared the variable is accessible accross the file.When declared the vairable in a header then its exposed to where ever its included. Every file will have a local copy. You need to extern ...
A sorting program that sorts items that are on secondary storage (disk or tape) rather than primary storage (memory) is called an external sort. Exactly how to sort large data depends on what is meant
Latest Answer : Any how after merging that it will create the same problem to sort out. Will you please explain about that? ...
Most operating systems, including DOS, provide a means to redirect program input and output to and from different devices. This means that rather than your program output (stdout) going to the screen;
Latest Answer : By using the operators "" we can redirect the standard input and out streams.example : d:> jinto.exe > outputredirected d:> ...
The preceding example showed how you can redirect a standard stream from within your program. But what if later in your program you wanted to restore the standard stream to its original state? By using
Stream functions such as fread() and fwrite() are buffered and are more efficient when reading and writing text or binary data to files. You generally gain better performance by using stream functions
Your C compiler library contains a low-level file function called sopen() that can be used to open a file in shared mode. Beginning with DOS 3.0, files could be opened in shared mode by loading a special
By using the sopen() function you can open a file in shared mode and explicitly deny reading and writing permissions to any other program but yours. This task is accomplished by using the SH_DENYWR shared
One easy technique to avoid multiple inclusions of the same header is to use the #ifndef and #define preprocessor directives. When you create a header for your program, you can #define a symbolic name
The preprocessor will include whatever file you specify in your #include statement. Therefore, if you have the line #include in your program, the file macros.inc will be included in
Latest Answer : no ...
