5 docs tagged with "macros"

A runtime level check is cheap, but it isn't free — it's still a branch and, on the disabled path,

Functions and macros allow you to create reusable CMake code, reducing duplication and improving maintainability. While they appear similar, they have important differences in how they handle variable scope.

The preprocessor is a text manipulation tool that runs before compilation. It handles #include, #define, #ifdef, and other directives, producing pure C++ code for the compiler.

Writing tojson/fromjson by hand for a plain data struct is mostly boilerplate — list the

File, line, and function are free only if the call site captures them — which is exactly why they're