C Warning: Statement with no effect

Question

When trying to compile my prgram with:

gcc -pedantic -Wall -ansi 

I get the warning: warning: statement with no effect

Referring to this line:

for(currentDirection; currentDirection <= endDirection; currentDirection++)

Can anyone help me with this?

Answer 1

currentDirection; does nothing.

Replace your line with

for(; currentDirection <= endDirection; currentDirection++)

Or, in case you just forgot to initialize the variable:

for(currentDirection = 0; currentDirection <= endDirection; currentDirection++)