Step By Step Execution Of C Program

Step By Step Execution Of C Program

Step 1 : Edit

1. This is First Step i.e Creating and Editing Program.
2. First Write C Program using Text Editor , such as [ Borland C/C++ 3.0 , Notpad++,Notpad ]
3. Save Program by using [.C] Extension.
4. File Saved with [.C] extension is called “Source Program“.

Step 2 : Compiling

1. Compiling C Program : C Source code with [.C] Extension is given as input to compiler and compiler convert it into Equivalent Machine Instruction.
2. In Borland C/C++ 3.0 program can be compiled using key [Alt + F9 ].
3. Compiler Checks for errors . If source code is error-free then Code is converted into Object File [.Obj ].

Step 3 : Checking Errors

1. During Compilation Compiler will check for error, If compiler finds any error then it will report it.
2. User have to re-edit the program.
3. After re-editing program , Compiler again check for any error.
4. If program is error-free then program is linked with appropriate libraries.

Step 4 : Linking Libraries

1. Program is linked with included header files.
2. Program is linked with other libraries.
3. This process is executed by Linker.

Step 5 : Error Checking

1. If run time error occurs then “Run-time” errors are reported to user.
2. Again programmer have to review code and check for the solution.

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