Awesome Macros That Do Nothing
summary
Proposes using simple C++ macros as documentation-only annotations to show parameter direction and ownership, applied to an example function with five pointers so it’s clear which are inputs, which are outputs and which transfer ownership. Uses IN and OUT on parameters, and TRANS and ISO to indicate ownership semantics. The annotations compile away and do not enforce safety but make lifetime expectations explicit and immediately usable when reading APIs.
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chapters (4)
- 0:00Introduction to API macros
- 0:34Labeling function parameters
- 1:45Defining ownership semantics
- 4:05Practical applications
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