eg_lpnum.h File Reference

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Detailed Description

Definition in file eg_lpnum.h.

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <limits.h>
#include <math.h>
#include <float.h>
#include "eg_lpnum.dbl.h"
#include "eg_macros.h"
#include "eg_mem.h"

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Number Types Definitions:
Define (as its name suggest) an internal identifier for the given type. this definitions are provided to select different types of data at compile time, thus allowing us to provide limited template support.
#define	DBL_TYPE   0
#define	FLOAT128_TYPE   13
#define	FLT_TYPE   1
#define	FP10_TYPE   3
#define	FP20_TYPE   4
#define	FP25_TYPE   6
#define	FP28_TYPE   5
#define	INT_TYPE   2
#define	LDBL_TYPE   11
#define	LLINT_TYPE   12
Defines
#define	__EGlpNumAllocArray(type, size)
	Allocate an array of a given type and store (sizeof(size_t) bytes before the actual array) the size of the allocated array.
#define	__EGlpNumArraySize(array)
	Given an array allocated with __EGlpNumAllocArray, return the size of the given array, if the array is null, return zero.
#define	__EGlpNumFreeArray(array)
	, given an array allocated by __EGlpNumAllocArray, free the allocated memory.
#define	EGLPNUM_DEBUGL   100
	Debugging verbosity messages deped on the value of DEBUG (defined in eg_configure.h) and on the value of EGLPNUM_DEBUGL macro defined here.
#define	EGLPNUM_MINEPS   0x1ep-20
	This constant define the of the acuracy required while converting doubles to rationals, a good number is 1e-5. More exactly, we stop the continued fraction method whenever the next e_i-[e_i] computed is less than EGLPNUM_MINEPS. Note that this value can't be smaller than 1/ULONG_MAX, otherwise we will have problems in the confertion step.
#define	EGLPNUM_TYPE   DBL_TYPE
	default type for EGLPNUM_TYPE
Functions
void	EGlpNumSetPrecision (const unsigned prec)
	Change the default precision for mpf_t numbers.

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