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3 Ordinary number types

CLN implements the following class hierarchy:

                        Number
                      cl_number
                    <cln/number.h>
                          |
                          |
                 Real or complex number
                        cl_N
                    <cln/complex.h>
                          |
                          |
                     Real number
                        cl_R
                     <cln/real.h>
                          |
      +-------------------+-------------------+
      |                                       |
Rational number                     Floating-point number
    cl_RA                                   cl_F
<cln/rational.h>                         <cln/float.h>
      |                                       |
      |                +--------------+--------------+--------------+
   Integer             |              |              |              |
    cl_I          Short-Float    Single-Float   Double-Float    Long-Float
<cln/integer.h>      cl_SF          cl_FF          cl_DF          cl_LF
                 <cln/sfloat.h> <cln/ffloat.h> <cln/dfloat.h> <cln/lfloat.h>

The base class cl_number is an abstract base class. It is not useful to declare a variable of this type except if you want to completely disable compile-time type checking and use run-time type checking instead.

The class cl_N comprises real and complex numbers. There is no special class for complex numbers since complex numbers with imaginary part 0 are automatically converted to real numbers.

The class cl_R comprises real numbers of different kinds. It is an abstract class.

The class cl_RA comprises exact real numbers: rational numbers, including integers. There is no special class for non-integral rational numbers since rational numbers with denominator 1 are automatically converted to integers.

The class cl_F implements floating-point approximations to real numbers. It is an abstract class.


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