55. Type Aliases

Question.3

A developer uses type aliases for hardware abstraction:

#ifdef STM32
   using RegType = uint32_t;
#else
   using RegType = uint16_t;
#endif

void write_register(RegType value);

What firmware technique does this demonstrate?

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Runtime polymorphism -- the type is selected at runtime
Compile-time platform abstraction -- the register width adapts to the target MCU without changing driver code
Dynamic typing -- RegType can hold any size
Template specialization

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