utils.h File Reference

Interface to several small and furry utilities needed within GiNaC but not of any interest to the user of the library. More...

#include "assertion.h"
#include <functional>
#include <cstdint>
#include <string>

Go to the source code of this file.

Classes
class	GiNaC::dunno
	Exception class thrown by functions to signal unimplemented functionality so the expression may just be .hold() More...
class	GiNaC::basic_partition_generator
	Base class for generating all bounded combinatorial partitions of an integer n with exactly m parts in non-decreasing order. More...
struct	GiNaC::basic_partition_generator::mpartition2
class	GiNaC::partition_with_zero_parts_generator
	Generate all bounded combinatorial partitions of an integer n with exactly m parts (including zero parts) in non-decreasing order. More...
class	GiNaC::partition_generator
	Generate all bounded combinatorial partitions of an integer n with exactly m parts (not including zero parts) in non-decreasing order. More...
class	GiNaC::composition_generator
	Generate all compositions of a partition of an integer n, starting with the compositions which has non-decreasing order. More...
struct	GiNaC::composition_generator::coolmulti
struct	GiNaC::composition_generator::coolmulti::element

Namespaces
namespace	GiNaC

Macros
#define	DEFAULT_CTOR(classname)   classname::classname() { setflag(status_flags::evaluated | status_flags::expanded); }
#define	DEFAULT_COMPARE(classname)
#define	DEFAULT_PRINT(classname, text)
#define	DEFAULT_PRINT_LATEX(classname, text, latex)

Functions
unsigned	GiNaC::log2 (unsigned n)
	Integer binary logarithm. More...
unsigned	GiNaC::rotate_left (unsigned n)
	Rotate bits of unsigned value by one bit to the left. More...
template<class T >
int	GiNaC::compare_pointers (const T *a, const T *b)
	Compare two pointers (just to establish some sort of canonical order). More...
unsigned	GiNaC::golden_ratio_hash (uintptr_t n)
	Truncated multiplication with golden ratio, for computing hash values. More...
template<class It >
int	GiNaC::permutation_sign (It first, It last)
template<class It , class Cmp , class Swap >
int	GiNaC::permutation_sign (It first, It last, Cmp comp, Swap swapit)
template<class It , class Cmp , class Swap >
void	GiNaC::shaker_sort (It first, It last, Cmp comp, Swap swapit)
template<class It , class Swap >
void	GiNaC::cyclic_permutation (It first, It last, It new_first, Swap swapit)
const numeric	GiNaC::multinomial_coefficient (const std::vector< unsigned > &p)
	Compute the multinomial coefficient n!/(p1!*p2!*...*pk!) where n = p1+p2+...+pk, i.e. More...

Detailed Description

Interface to several small and furry utilities needed within GiNaC but not of any interest to the user of the library.

Definition in file utils.h.

Macro Definition Documentation

DEFAULT_CTOR

#define DEFAULT_CTOR

(

classname

)

classname::classname() { setflag(status_flags::evaluated | status_flags::expanded); }

Definition at line 606 of file utils.h.

DEFAULT_COMPARE

#define DEFAULT_COMPARE

(

classname

)

Value:

int classname::compare_same_type(const basic & other) const \
{ \
    /* by default, the objects are always identical */ \
    return 0; \
}

Definition at line 609 of file utils.h.

DEFAULT_PRINT

#define DEFAULT_PRINT	(		classname,
			text
	)

Value:

void classname::do_print(const print_context & c, unsigned level) const \
{ \
    c.s << text; \
}

Definition at line 616 of file utils.h.

DEFAULT_PRINT_LATEX

#define DEFAULT_PRINT_LATEX	(		classname,
			text,
			latex
	)

Value:

DEFAULT_PRINT(classname, text) \
void classname::do_print_latex(const print_latex & c, unsigned level) const \
{ \
    c.s << latex; \
}

Definition at line 622 of file utils.h.