__FB_OPTION_BYVAL__


Intrinsic define (macro value) set by the compiler

Syntax:
__FB_OPTION_BYVAL__

Description:
Indicates if parameters to a Function or Sub are passed by reference as with Byref, or by value as with Byval by default when the by value / by reference specifier is not explicitly stated.

__FB_OPTION_BYVAL__ is set to non-zero (-1) if by default parameters are passed value, and zero (0) if by default parameters are passed by reference.

The default for passing parameters by reference or by value is determined by the -lang command line option used during compilation or usage of Option Byval in the source file.

Examples:
#if( __FB_OPTION_BYVAL__ <> 0 )
  #error Option ByVal must Not be used With This source
#endif


Differences from QB:
See also:
Back to Intrinsic Defines
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