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 <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...
Namespaces
namespace	GiNaC
	CRC32 hash function.
Defines
#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)
Typedefs
typedef unsigned long	GiNaC::p_int
Functions
unsigned	GiNaC::log2 (unsigned n)
	Integer binary logarithm.
unsigned	GiNaC::rotate_left (unsigned n)
	Rotate bits of unsigned value by one bit to the left.
template<class T >
int	GiNaC::compare_pointers (const T *a, const T *b)
	Compare two pointers (just to establish some sort of canonical order).
unsigned	GiNaC::golden_ratio_hash (p_int n)
	Truncated multiplication with golden ratio, for computing hash values.
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)

---

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.

---

Define Documentation

#define DEFAULT_CTOR

(

classname

)

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

Definition at line 418 of file utils.h.

#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 421 of file utils.h.

#define DEFAULT_PRINT	(		classname,
			text
	)

Value:

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

Definition at line 428 of file utils.h.

#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 434 of file utils.h.