warn_no_side

Controls the issuing of warning messages for redundant statements.

Syntax

  #pragma warn_no_side_effect on | off | reset

Remarks

If you enable this pragma, the compiler issues a warning message when it encounters a statement that produces no side effect. To suppress this warning message, cast the statement with (void). The following listing provides an example.

Listing: Example of Pragma warn_no_side_effect

#pragma warn_no_side_effect on 
void func(int a,int b) 
{ 
 a+b; /* WARNING: expression has no side effect */ 
 (void)(a+b); /* OK: void cast suppresses warning. */ 
}