G_FLOAT

 The  %G_FLOAT  directive  produces  a  VAX  G_floating   literal
 regardless   of  the  current  floating  point  default  of  the
 compilation.  Without the directive,  the  format  of  a  double
 precision  floating  literal  will  be  determined  based on the
 setting of the /FLOAT DCL qualifier or the [FLOAT]  module-level
 attribute.  The syntax is:

   %G_FLOAT floating-point-literal