Number Types Reference

Michael Hemmer, Susan Hert, Sylvain Pion, and Stefan Schirra

This package provides number type concepts as well as number type classes and wrapper classes for third party number type libraries.

Introduced in: CGAL 1.0
BibTeX: cgal:hhkps-nt-21b
License: LGPL

Classified Reference Pages

Number Type Classes and Concepts

• int
• short int
• long int
• long long int
• float
• double
• long double

CORE

• CORE::BigInt
• CORE::BigRat
• CORE::BigFloat
• CORE::Expr

LEDA

• leda_integer
• leda_rational
• leda_bigfloat
• leda_real

GMP

• mpz_class
• mpq_class
• CGAL::Mpzf
• CGAL::Gmpz
• CGAL::Gmpq
• CGAL::Gmpzf
• CGAL::Gmpfr
• CGAL::Gmpfi

CGAL

• CGAL::MP_Float
• CGAL::Interval_nt<Protected>
• CGAL::Lazy_exact_nt<NT>
• CGAL::Quotient<NT>
• CGAL::Number_type_checker<NT1,NT2,Comparator>
• CGAL::Exact_integer
• CGAL::Exact_rational

Relates Rational

• CGAL::Rational_traits<NT>
• CGAL::simplest_rational_in_interval()
• CGAL::to_rational()

Relates Algebraic Extensions

• RootOf_2
• CGAL::Root_of_traits<RT>
• CGAL::make_root_of_2<RT>
• CGAL::make_sqrt<RT>
• CGAL::compute_roots_of_2<RT,OutputIterator>
• CGAL::Sqrt_extension<NT,ROOT>

Utilities

• CGAL::Min<T,Less>
• CGAL::Max<T,Less>
• CGAL::Is_valid<T>
• CGAL::min()
• CGAL::max()
• CGAL::is_valid()
• CGAL::Set_ieee_double_precision
• CGAL::Protect_FPU_rounding<Protected>

Modules
	Concepts
	Built-in types
	CORE
	LEDA
	GMP
	CGAL Number Types
	Relates Rational
	Relates Algebraic Extensions
	Utilities

Macros
#define	CGAL_PI   3.14159265358979323846
	an approximation of \( \pi \)