Programming in C MCQ - Master Assignment
Use of functions involves storing the current contents and branching to its starting address. These things add to the execution time. On the other hand, macro substitution increases the code size. This is of serious concern, if the macro is used in many places.
For each 8 bits one can save 1 bit. So percentage reduction will be 1 / 8 * 100 i.e. 12.5%.
