Linking C Program

Dear readers,

               In this post you will learn the method to link a C program....

SO FRIENDS LETS START LEARNING

• Linking C program :-

               Linking is a process in which the object file produced by the compiler is linked to many other library files. This work is done by the Linker.

 The Linker is a program and is a part of compiler. After linking the object code to the libraries, an executable file with extension EXE is created.

For example :-

            If  source file name is "test.c", then executable file name will be "test.exe".

                      In Turbo C environment, program is linked as;

• Select Link command from Compile menu on the menu bar.

 

In Turbo C IDE, compiling and linking can be performed together in one step. To do this, select Make command from Compile manu or press F9 key. The linker can also detect errors.

• For Example :-

If the source code uses a library function that does bot exist, the linker generates an error. If there is any error in the source code, the Linker will not create the executable file.

 In this case, the errors are removed from the source code and source code is compiled again. The new object file is then linked to the libraries to create the executable file. The file directly dun on the computer.