CCoding Style - Function Macros

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.