KwickClips C++ · 41 sec · free
What runs first, preprocessor or compiler?
Short answer. The preprocessor.
How does it edit code?
As text.
The preprocessor
| Handles lines starting with # |
| Pastes header files |
| Replaces macros, drops comments |
Remember
| Preprocessor runs first |
| It edits code as text |
What edits your C code before the compiler? It is the preprocessor. It handles lines starting with hash. It pastes header files in. It replaces macros and removes comments. Remember this. The preprocessor runs first. It edits text.
This clip is from the full lesson: The C Preprocessor: Macros and Conditional Compilation — 7 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 10 Information Technology (402), Programming All levels C, Programming All levels C
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