_retnd()
 Post a numeric return value using a double
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 C Prototype

     #include "Extend.h"
     void _retnd(double n)

 Arguments

     n is a numeric expression of type double.

 Returns

     _retnd() has no return value.

 Description

     _retnd() is used to post a numeric value into Clipper's return value
     area.  Later, when your C or Assembly language function returns control
     to the calling Clipper program, the posted return value will be
     available as the Clipper return value from your C or Assembly language
     function.

 Examples

     From C:

     _retnd( (double)3.14 );

     From Assembly language:

     EXTRN   __retnd:FAR
       push  word ptr (MyPi+6)    ; push double number (not shown)
       push  word ptr (MyPi+2)
       push  word ptr (MyPi+4)
       push  word ptr MyPi
       call  __retnd
       add   sp, 8                ; reset stack pointer

 Files:  Library is CLIPPER.LIB, header file is Extend.h.