VMS Help RTL Routines, MTH$, MTH$CVT x x  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    The Convert One Double-Precision Value routines convert one
    double-precision value to the destination data type and return
    the result as a function value. MTH$CVT_D_G converts a D-floating
    value to G-floating and MTH$CVT_G_D converts a G-floating value
    to a D-floating value.

    Format

      MTH$CVT_D_G  floating-point-input-val

      MTH$CVT_G_D  floating-point-input-val

1 - Returns

    OpenVMS usage:floating_point
    type:         G_floating, D_floating
    access:       write only
    mechanism:    by value

    The converted value. MTH$CVT_D_G returns a G-floating value.
    MTH$CVT_G_D returns a D-floating value.

2 - Argument

 floating-point-input-val

    OpenVMS usage:floating_point
    type:         D_floating, G_floating
    access:       read only
    mechanism:    by reference

    The input value to be converted. The floating-point-input-val
    argument is the address of this input value. For MTH$CVT_D_G, the
    floating-point-input-val argument specifies a D-floating number.
    For MTH$CVT_G_D, the floating-point-input-val argument specifies
    a G-floating number.