CCoding Style - Function Macros

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Function Macros

  • There is a tendency among C-Programmers to write macros instead of functions for short computations that will be executed frequently.
  • The reason is performance: a macro avoids the overhead of a function call.
  • With modern machines and compilers, the drawbacks of function macros outweighs their benefits.
  • Function macros cause more problems than they solve.
  • If you insist on using function macros, be careful.