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This is an multiple-precision floating-point type; it can represent numbers of the form m*2e, where m is an arbitrary precision integer based on the Gnu Multiple Precision Arithmetic Library, and e is of type long. This type can be considered exact, even if the exponent is not a multiple-precision number. This number type offers functionality very similar to MP_Float but is generally faster.
#include <CGAL/Gmpzf.h>
| Gmpzf f; | |
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creates a Gmpzf initialized with 0.
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| Gmpzf f ( int i); | |
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creates a Gmpzf initialized with i.
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| Gmpzf f ( long int l); | |
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creates a Gmpzf initialized with l.
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| Gmpzf f ( Gmpz i); | |
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creates a Gmpzf initialized with i.
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| Gmpzf f ( Gmpfr f); | |
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creates a Gmpzf initialized with f.
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| Gmpzf f ( double d); | |
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creates a Gmpzf initialized with d.
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| std::ostream& | std::ostream& out << f | writes a double approximation of f to the ostream out. |
| std::ostream& | print ( std::ostream& out, f) | writes an exact representation of f to the ostream out. |
| std::istream& | std::istream& in >> & f | reads a double from in, then converts it to a Gmpzf. |