F77_ISFALSE

Is this the FORTRAN logical value false?

Description:

Does the argument of the macro evaluate to a value that FORTRAN would treat as a LOGICAL false?

Invocation

if( F77_ISFALSE(var) ) ...

Arguments

var
The name of the value to be tested.

Examples:

F77_ISFALSE(var)
will expand as follows:
Solaris: ( ! ( var ) )
OSF/1: ( ! ( (var)&1 ) )
VAX/VMS: ( ! ( (var)&1 ) )

Notes: