probleme void defilement

[ahmeddragonbleu]

when i compile this warning apper to me "line 535 code has no effect "
i==i-30 has no effect
i need a solution

THE PROGRAMM

#include <16F877A.h>
#fuses XT, NOLVP, NOWDT
#use delay(clock=4000000)

void defilement(int i)
{
if(i>29)
{
i==i-30;
mini_main(i);
}

}

void main()
{
.
.

}

++++++++++++++++++++++
576 line program chopped down
to needed part.

-- Forum moderator
++++++++++++++++++++++

[ckielstra]

Post small programs. 95% of the posted code has nothing to do with the problem.

[ahmeddragonbleu]

when i compile this warning appear to me "line 535 code has no effect "
i==i-30 has no effect
i need a solution

void defilement(int i)
{
if(i>29)
{
i==i-30;
mini_main(i);
}

[Ttelmah]

The answer has already been pointed out...
The statement :

i==i-30;

says 'test if i equals i-30', then as written, the result of the test is thrown away.

It has no effect. The compiler is telling you _exactly_ what is going on...

Best Wishes

[ckielstra]

As an answer to your question in: http://www.ccsinfo.com/forum/viewtopic.php?p=133077
Check your study book on the C language and look up the difference between the '=' and '==' operators.