impossible is not a C keyword

Learn about C preprocessor tricks

This book delves into techniques to generate C code with the preprocessor, starting with a reminder about what the preprocessor is and how it is integrated in the C compilation pipeline, then building up increasingly complex tools anyone can use in their C projects.

Read it online !

Add this project as a dependency to your C project today (using Zig, Nix or Conan) to get:

• ANSI color codes as a string literal by writing COLOR(UNDERLINED, BOLD, RED) blackmagic/color.h
• Convert enums to/from strings blackmagic/enum.h
• Logs with a compile-time configurable format and level blackmagic/log.h. Possible formats include:
  • colored console
  • JSON
  • Markdown table
  • custom callback

I would like to explain the following tricks in the book:

• Logging
• Default arguments
• Function overloading
• Enum to/from string
• Serialization / Deserialization of a structure
• Unit-tests library

• Sphinx directive to show C code before and after preprocessing
• Custom pygment lexer to color the code the way the preprocessor sees it

Add the dependency in your build.zig.zon by running the following command:

zig fetch --save git+https://github.com/agagniere/blackmagic#master

Then, in your build.zig:

const blackmagic = b.dependency("blackmagic", .{});
// wherever needed:
exe.addIncludePath(blackmagic.path("include"));

Add the dependency in your conanfile.txt

[requires]
blackmagic/0.3