“Hello world” is the first lesson in any language. We always always try to improve our coding knowledge. But for a professional development we should follow good and generic standards for writing a code. With my experience in C,I understood the fact,that writing a code is not a great thing. But writing a error free code in small span of time and which can be referred or enhanced by other developers without any confusion makes a perfect code. As I strongly believe, Today’s best solutions becomes tomorrows Best Practices. We need to learn form our mistake and others experience to become perfect.
With this perception I would like to share my experience to enrich your Coding experience.
Here is some standard for coding C that you can follow to get the best result, and can save your life from Reviewer’s comments.
If you have below goals in mind:
- Code should be robust and error free.
- Code should be easy to use and understand.
- Code should be easy to maintain.
This is for you.
Naming Conventions
General:
- Clear and informative names are one of the best tools for creating easily understandable code. The name of any identifier should succinctly describe the purpose of that identifier.
- Avoid abstract names (in a global context) that are likely to be reused by other parts of the system.
File Names:
- Header(.h) files should have the same name as the .c for header files dedicated to the .c.
- File names should be made up of a prefix, underscore, base name, period and suffix. File names should be consistent with the area of the application being modified. File names should represent the content or role of the file.
- Header file names should have the extension “.h”.
- C Implementation (source) file names should have the extension “.c”
Function Names:
- Function names should reflect what they do or what they return.
- Do NOT re-use names of functions from the standards libraries (such as printf or strlen).
- Function names should normally be formed from two parts: an action (verb) and an object (noun) of the action. Exceptions are query functions where the second part is not a noun, but the name should form a “question”.
eg. GetSystemTime() SetStringLength()
Variable Names:
- Variable names should be descriptive of the variable’s functions.
- Constant names should be in all CAPS, with multiple words separated by an underscore, e.g. MAX_PAGERS.
- Macros, with or without parameters, should also be in all CAPS.
- Enumeration constants and global typedef names should be in all CAPS with individual words separated by underscores, e.g. DATA_VALID.
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