my favorite C++ feature
summary
Claim: C++ function pointers are the favorite feature and they behave oddly but predictably. Code examples build add and mul, a call(funcptr) that takes a function pointer, a picker that returns a function pointer, and variants that choose among many functions. The surprising tool: a function implicitly converts to a pointer to itself so dereferencing and re-dereferencing is valid — implicit conversion — tested with Visual C++ and GCC and it compiles even with hundreds of asterisks using plain function pointers.
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chapters (7)
- 0:00Introduction
- 0:30The closing brace
- 0:50My favourite feature
- 1:00Function pointers
- 1:30Adding indirection
- 3:20Multiple pick functions
- 3:35Function pointer
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