Having the prototype available before the first use of the function allows the compiler to check that the correct number and type of arguments are used in the function call and that the returned value, if any, is being used reasonably. The function definition itself can act as an implicit function declaration.
While shellac is not usually the finish paint choice, it is often thought of as the best paint primer available. It has properties that oil and water based paints can't match, and provides a more dependable seal than most other primers are able to provide.
do not shake the shellac but rather stir it or roll the container in your hands prior or us a stir stick i use a lint free cotton rag to apply the shellac i usually take a rag and fold it into four s the i dip an edge into the shellac and wipe it on the piece in the same direction that i will be applying the paint