FT_FDEC()
 Return the number of decimals in a numeric (type "N") field.
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 Syntax

      FT_FDEC( <xVar> ) -> nDec

 Arguments

     <xVar> is either a field name or ordinal .DBF position.

 Returns

     the number of decimal places in a numeric field.  -1 if field is
     not type "N", or if other error.

 Description

     FT_FDEC() reports the number of decimal places in a numeric field.

 Examples

     nDec:= FT_FDEC( "unit_prc" )
     nDec:= FT_FDEC( 2 )
     - or -
     nNum:= FT_FNUM( "unit_prc" )
     nDec:= FT_FDEC( nNum )

 Source: FIELD.PRG

 Author: Steve Kolterman