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cpython/Modules/_decimal/libmpdec/mpdecimal.h

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Issue #7652: Integrate the decimal floating point libmpdec library to speed up the decimal module. Performance gains of the new C implementation are between 12x and 80x, depending on the application.
2012-03-21 14:25:23 -03:00
/*
* Copyright (c) 2008-2012 Stefan Krah. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef MPDECIMAL_H
#define MPDECIMAL_H
#ifdef __cplusplus
extern "C" {
#define __STDC_LIMIT_MACROS
#endif
#ifndef _MSC_VER
#include "pyconfig.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <assert.h>
#ifdef _MSC_VER
#include "vccompat.h"
#ifndef UNUSED
#define UNUSED
#endif
#define EXTINLINE extern inline
#else
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#ifndef __GNUC_STDC_INLINE__
#define __GNUC_STDC_INLINE__
#endif
#if defined(__GNUC__) && !defined(__INTEL_COMPILER)
#define UNUSED __attribute__((unused))
#else
#define UNUSED
#endif
#define EXTINLINE
#endif
#if !defined(LEGACY_COMPILER)
#if !defined(UINT64_MAX)
/* The following #error is just a warning. If the compiler indeed does
* not have uint64_t, it is perfectly safe to comment out the #error. */
#error "Warning: Compiler without uint64_t. Comment out this line."
#define LEGACY_COMPILER
#endif
#endif
/******************************************************************************/
/* Configuration */
/******************************************************************************/
#if defined(UNIVERSAL)
#if defined(CONFIG_64) || defined(CONFIG_32)
#error "cannot use CONFIG_64 or CONFIG_32 with UNIVERSAL."
#endif
#if defined(__ppc__)
#define CONFIG_32
#define ANSI
#elif defined(__ppc64__)
#define CONFIG_64
#define ANSI
#elif defined(__i386__)
#define CONFIG_32
#define ANSI
#elif defined(__x86_64__)
#define CONFIG_64
#define ASM
#else
#error "unknown architecture for universal build."
#endif
#endif
/* BEGIN CONFIG_64 */
#if defined(CONFIG_64)
/* types for modular and base arithmetic */
#define MPD_UINT_MAX UINT64_MAX
#define MPD_BITS_PER_UINT 64
typedef uint64_t mpd_uint_t; /* unsigned mod type */
#define MPD_SIZE_MAX SIZE_MAX
typedef size_t mpd_size_t; /* unsigned size type */
/* type for exp, digits, len, prec */
#define MPD_SSIZE_MAX INT64_MAX
#define MPD_SSIZE_MIN INT64_MIN
typedef int64_t mpd_ssize_t;
#define _mpd_strtossize strtoll
/* decimal arithmetic */
#define MPD_RADIX 10000000000000000000ULL /* 10**19 */
#define MPD_RDIGITS 19
#define MPD_MAX_POW10 19
#define MPD_EXPDIGITS 19 /* MPD_EXPDIGITS <= MPD_RDIGITS+1 */
#define MPD_MAXTRANSFORM_2N 4294967296ULL /* 2**32 */
#define MPD_MAX_PREC 999999999999999999LL
#define MPD_MAX_PREC_LOG2 64
#define MPD_ELIMIT 1000000000000000000LL
#define MPD_MAX_EMAX 999999999999999999LL /* ELIMIT-1 */
#define MPD_MIN_EMIN (-999999999999999999LL) /* -EMAX */
#define MPD_MIN_ETINY (MPD_MIN_EMIN-(MPD_MAX_PREC-1))
#define MPD_EXP_INF 2000000000000000001LL
#define MPD_EXP_CLAMP (-4000000000000000001LL)
#define MPD_MAXIMPORT 105263157894736842L /* ceil((2*MPD_MAX_PREC)/MPD_RDIGITS) */
/* conversion specifiers */
#define PRI_mpd_uint_t PRIu64
#define PRI_mpd_ssize_t PRIi64
/* END CONFIG_64 */
/* BEGIN CONFIG_32 */
#elif defined(CONFIG_32)
/* types for modular and base arithmetic */
#define MPD_UINT_MAX UINT32_MAX
#define MPD_BITS_PER_UINT 32
typedef uint32_t mpd_uint_t; /* unsigned mod type */
#ifndef LEGACY_COMPILER
#define MPD_UUINT_MAX UINT64_MAX
typedef uint64_t mpd_uuint_t; /* double width unsigned mod type */
#endif
#define MPD_SIZE_MAX SIZE_MAX
typedef size_t mpd_size_t; /* unsigned size type */
/* type for dec->len, dec->exp, ctx->prec */
#define MPD_SSIZE_MAX INT32_MAX
#define MPD_SSIZE_MIN INT32_MIN
typedef int32_t mpd_ssize_t;
#define _mpd_strtossize strtol
/* decimal arithmetic */
#define MPD_RADIX 1000000000UL /* 10**9 */
#define MPD_RDIGITS 9
#define MPD_MAX_POW10 9
#define MPD_EXPDIGITS 10 /* MPD_EXPDIGITS <= MPD_RDIGITS+1 */
#define MPD_MAXTRANSFORM_2N 33554432UL /* 2**25 */
#define MPD_MAX_PREC 425000000L
#define MPD_MAX_PREC_LOG2 32
#define MPD_ELIMIT 425000001L
#define MPD_MAX_EMAX 425000000L /* ELIMIT-1 */
#define MPD_MIN_EMIN (-425000000L) /* -EMAX */
#define MPD_MIN_ETINY (MPD_MIN_EMIN-(MPD_MAX_PREC-1))
#define MPD_EXP_INF 1000000001L /* allows for emax=999999999 in the tests */
#define MPD_EXP_CLAMP (-2000000001L) /* allows for emin=-999999999 in the tests */
#define MPD_MAXIMPORT 94444445L /* ceil((2*MPD_MAX_PREC)/MPD_RDIGITS) */
/* conversion specifiers */
#define PRI_mpd_uint_t PRIu32
#define PRI_mpd_ssize_t PRIi32
/* END CONFIG_32 */
#else
#error "define CONFIG_64 or CONFIG_32"
#endif
/* END CONFIG */
#if MPD_SIZE_MAX != MPD_UINT_MAX
#error "unsupported platform: need mpd_size_t == mpd_uint_t"
#endif
/******************************************************************************/
/* Context */
/******************************************************************************/
enum {
MPD_ROUND_UP, /* round away from 0 */
MPD_ROUND_DOWN, /* round toward 0 (truncate) */
MPD_ROUND_CEILING, /* round toward +infinity */
MPD_ROUND_FLOOR, /* round toward -infinity */
MPD_ROUND_HALF_UP, /* 0.5 is rounded up */
MPD_ROUND_HALF_DOWN, /* 0.5 is rounded down */
MPD_ROUND_HALF_EVEN, /* 0.5 is rounded to even */
MPD_ROUND_05UP, /* round zero or five away from 0 */
MPD_ROUND_TRUNC, /* truncate, but set infinity */
MPD_ROUND_GUARD
};
enum { MPD_CLAMP_DEFAULT, MPD_CLAMP_IEEE_754, MPD_CLAMP_GUARD };
extern const char *mpd_round_string[MPD_ROUND_GUARD];
extern const char *mpd_clamp_string[MPD_CLAMP_GUARD];
typedef struct {
mpd_ssize_t prec; /* precision */
mpd_ssize_t emax; /* max positive exp */
mpd_ssize_t emin; /* min negative exp */
uint32_t traps; /* status events that should be trapped */
uint32_t status; /* status flags */
uint32_t newtrap; /* set by mpd_addstatus_raise() */
int round; /* rounding mode */
int clamp; /* clamp mode */
int allcr; /* all functions correctly rounded */
} mpd_context_t;
/* Status flags */
#define MPD_Clamped 0x00000001U
#define MPD_Conversion_syntax 0x00000002U
#define MPD_Division_by_zero 0x00000004U
#define MPD_Division_impossible 0x00000008U
#define MPD_Division_undefined 0x00000010U
#define MPD_Fpu_error 0x00000020U
#define MPD_Inexact 0x00000040U
#define MPD_Invalid_context 0x00000080U
#define MPD_Invalid_operation 0x00000100U
#define MPD_Malloc_error 0x00000200U
#define MPD_Not_implemented 0x00000400U
#define MPD_Overflow 0x00000800U
#define MPD_Rounded 0x00001000U
#define MPD_Subnormal 0x00002000U
#define MPD_Underflow 0x00004000U
#define MPD_Max_status (0x00008000U-1U)
/* Conditions that result in an IEEE 754 exception */
#define MPD_IEEE_Invalid_operation (MPD_Conversion_syntax | \
MPD_Division_impossible | \
MPD_Division_undefined | \
MPD_Fpu_error | \
MPD_Invalid_context | \
MPD_Invalid_operation | \
MPD_Malloc_error) \
/* Errors that require the result of an operation to be set to NaN */
#define MPD_Errors (MPD_IEEE_Invalid_operation | \
MPD_Division_by_zero)
/* Default traps */
#define MPD_Traps (MPD_IEEE_Invalid_operation | \
MPD_Division_by_zero | \
MPD_Overflow | \
MPD_Underflow)
/* Official name */
#define MPD_Insufficient_storage MPD_Malloc_error
/* IEEE 754 interchange format contexts */
#define MPD_IEEE_CONTEXT_MAX_BITS 512 /* 16*(log2(MPD_MAX_EMAX / 3)-3) */
#define MPD_DECIMAL32 32
#define MPD_DECIMAL64 64
#define MPD_DECIMAL128 128
#define MPD_MINALLOC_MIN 2
#define MPD_MINALLOC_MAX 64
extern mpd_ssize_t MPD_MINALLOC;
extern void (* mpd_traphandler)(mpd_context_t *);
void mpd_dflt_traphandler(mpd_context_t *);
void mpd_setminalloc(mpd_ssize_t n);
void mpd_init(mpd_context_t *ctx, mpd_ssize_t prec);
void mpd_maxcontext(mpd_context_t *ctx);
void mpd_defaultcontext(mpd_context_t *ctx);
void mpd_basiccontext(mpd_context_t *ctx);
int mpd_ieee_context(mpd_context_t *ctx, int bits);
mpd_ssize_t mpd_getprec(const mpd_context_t *ctx);
mpd_ssize_t mpd_getemax(const mpd_context_t *ctx);
mpd_ssize_t mpd_getemin(const mpd_context_t *ctx);
int mpd_getround(const mpd_context_t *ctx);
uint32_t mpd_gettraps(const mpd_context_t *ctx);
uint32_t mpd_getstatus(const mpd_context_t *ctx);
int mpd_getclamp(const mpd_context_t *ctx);
int mpd_getcr(const mpd_context_t *ctx);
int mpd_qsetprec(mpd_context_t *ctx, mpd_ssize_t prec);
int mpd_qsetemax(mpd_context_t *ctx, mpd_ssize_t emax);
int mpd_qsetemin(mpd_context_t *ctx, mpd_ssize_t emin);
int mpd_qsetround(mpd_context_t *ctx, int newround);
int mpd_qsettraps(mpd_context_t *ctx, uint32_t flags);
int mpd_qsetstatus(mpd_context_t *ctx, uint32_t flags);
int mpd_qsetclamp(mpd_context_t *ctx, int c);
int mpd_qsetcr(mpd_context_t *ctx, int c);
void mpd_addstatus_raise(mpd_context_t *ctx, uint32_t flags);
/******************************************************************************/
/* Decimal Arithmetic */
/******************************************************************************/
/* mpd_t flags */
#define MPD_POS ((uint8_t)0)
#define MPD_NEG ((uint8_t)1)
#define MPD_INF ((uint8_t)2)
#define MPD_NAN ((uint8_t)4)
#define MPD_SNAN ((uint8_t)8)
#define MPD_SPECIAL (MPD_INF|MPD_NAN|MPD_SNAN)
#define MPD_STATIC ((uint8_t)16)
#define MPD_STATIC_DATA ((uint8_t)32)
#define MPD_SHARED_DATA ((uint8_t)64)
#define MPD_CONST_DATA ((uint8_t)128)
#define MPD_DATAFLAGS (MPD_STATIC_DATA|MPD_SHARED_DATA|MPD_CONST_DATA)
/* mpd_t */
typedef struct {
uint8_t flags;
mpd_ssize_t exp;
mpd_ssize_t digits;
mpd_ssize_t len;
mpd_ssize_t alloc;
mpd_uint_t *data;
} mpd_t;
typedef unsigned char uchar;
/******************************************************************************/
/* Quiet, thread-safe functions */
/******************************************************************************/
/* format specification */
typedef struct {
mpd_ssize_t min_width; /* minimum field width */
mpd_ssize_t prec; /* fraction digits or significant digits */
char type; /* conversion specifier */
char align; /* alignment */
char sign; /* sign printing/alignment */
char fill[5]; /* fill character */
const char *dot; /* decimal point */
const char *sep; /* thousands separator */
const char *grouping; /* grouping of digits */
} mpd_spec_t;
/* output to a string */
char *mpd_to_sci(const mpd_t *dec, int fmt);
char *mpd_to_eng(const mpd_t *dec, int fmt);
mpd_ssize_t mpd_to_sci_size(char **res, const mpd_t *dec, int fmt);
mpd_ssize_t mpd_to_eng_size(char **res, const mpd_t *dec, int fmt);
int mpd_validate_lconv(mpd_spec_t *spec);
int mpd_parse_fmt_str(mpd_spec_t *spec, const char *fmt, int caps);
char * mpd_qformat_spec(const mpd_t *dec, const mpd_spec_t *spec, const mpd_context_t *ctx, uint32_t *status);
char *mpd_qformat(const mpd_t *dec, const char *fmt, const mpd_context_t *ctx, uint32_t *status);
#define MPD_NUM_FLAGS 15
#define MPD_MAX_FLAG_STRING 208
#define MPD_MAX_FLAG_LIST (MPD_MAX_FLAG_STRING+18)
#define MPD_MAX_SIGNAL_LIST 121
int mpd_snprint_flags(char *dest, int nmemb, uint32_t flags);
int mpd_lsnprint_flags(char *dest, int nmemb, uint32_t flags, const char *flag_string[]);
int mpd_lsnprint_signals(char *dest, int nmemb, uint32_t flags, const char *signal_string[]);
/* output to a file */
void mpd_fprint(FILE *file, const mpd_t *dec);
void mpd_print(const mpd_t *dec);
/* assignment from a string */
void mpd_qset_string(mpd_t *dec, const char *s, const mpd_context_t *ctx, uint32_t *status);
/* set to NaN with error flags */
void mpd_seterror(mpd_t *result, uint32_t flags, uint32_t *status);
/* set a special with sign and type */
void mpd_setspecial(mpd_t *dec, uint8_t sign, uint8_t type);
/* set coefficient to zero or all nines */
void mpd_zerocoeff(mpd_t *result);
void mpd_qmaxcoeff(mpd_t *result, const mpd_context_t *ctx, uint32_t *status);
/* quietly assign a C integer type to an mpd_t */
void mpd_qset_ssize(mpd_t *result, mpd_ssize_t a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qset_i32(mpd_t *result, int32_t a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qset_uint(mpd_t *result, mpd_uint_t a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qset_u32(mpd_t *result, uint32_t a, const mpd_context_t *ctx, uint32_t *status);
#ifndef LEGACY_COMPILER
void mpd_qset_i64(mpd_t *result, int64_t a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qset_u64(mpd_t *result, uint64_t a, const mpd_context_t *ctx, uint32_t *status);
#endif
/* quietly assign a C integer type to an mpd_t with a static coefficient */
void mpd_qsset_ssize(mpd_t *result, mpd_ssize_t a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qsset_i32(mpd_t *result, int32_t a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qsset_uint(mpd_t *result, mpd_uint_t a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qsset_u32(mpd_t *result, uint32_t a, const mpd_context_t *ctx, uint32_t *status);
/* quietly get a C integer type from an mpd_t */
mpd_ssize_t mpd_qget_ssize(const mpd_t *dec, uint32_t *status);
mpd_uint_t mpd_qget_uint(const mpd_t *dec, uint32_t *status);
mpd_uint_t mpd_qabs_uint(const mpd_t *dec, uint32_t *status);
/* quiet functions */
int mpd_qcheck_nan(mpd_t *nanresult, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
int mpd_qcheck_nans(mpd_t *nanresult, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qfinalize(mpd_t *result, const mpd_context_t *ctx, uint32_t *status);
const char * mpd_class(const mpd_t *a, const mpd_context_t *ctx);
int mpd_qcopy(mpd_t *result, const mpd_t *a, uint32_t *status);
mpd_t *mpd_qncopy(const mpd_t *a);
int mpd_qcopy_abs(mpd_t *result, const mpd_t *a, uint32_t *status);
int mpd_qcopy_negate(mpd_t *result, const mpd_t *a, uint32_t *status);
int mpd_qcopy_sign(mpd_t *result, const mpd_t *a, const mpd_t *b, uint32_t *status);
void mpd_qand(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qinvert(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qlogb(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qor(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qscaleb(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qxor(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
int mpd_same_quantum(const mpd_t *a, const mpd_t *b);
void mpd_qrotate(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
int mpd_qshiftl(mpd_t *result, const mpd_t *a, mpd_ssize_t n, uint32_t *status);
mpd_uint_t mpd_qshiftr(mpd_t *result, const mpd_t *a, mpd_ssize_t n, uint32_t *status);
mpd_uint_t mpd_qshiftr_inplace(mpd_t *result, mpd_ssize_t n);
void mpd_qshift(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qshiftn(mpd_t *result, const mpd_t *a, mpd_ssize_t n, const mpd_context_t *ctx, uint32_t *status);
int mpd_qcmp(const mpd_t *a, const mpd_t *b, uint32_t *status);
int mpd_qcompare(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
int mpd_qcompare_signal(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
int mpd_cmp_total(const mpd_t *a, const mpd_t *b);
int mpd_cmp_total_mag(const mpd_t *a, const mpd_t *b);
int mpd_compare_total(mpd_t *result, const mpd_t *a, const mpd_t *b);
int mpd_compare_total_mag(mpd_t *result, const mpd_t *a, const mpd_t *b);
void mpd_qround_to_intx(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qround_to_int(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qtrunc(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qfloor(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qceil(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qabs(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qmax(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qmax_mag(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qmin(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qmin_mag(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qminus(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qplus(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qnext_minus(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qnext_plus(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qnext_toward(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qquantize(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qrescale(mpd_t *result, const mpd_t *a, mpd_ssize_t exp, const mpd_context_t *ctx, uint32_t *status);
void mpd_qrescale_fmt(mpd_t *result, const mpd_t *a, mpd_ssize_t exp, const mpd_context_t *ctx, uint32_t *status);
void mpd_qreduce(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qadd(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qadd_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qadd_i32(mpd_t *result, const mpd_t *a, int32_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qadd_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qadd_u32(mpd_t *result, const mpd_t *a, uint32_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qsub(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qsub_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qsub_i32(mpd_t *result, const mpd_t *a, int32_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qsub_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qsub_u32(mpd_t *result, const mpd_t *a, uint32_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qmul(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qmul_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qmul_i32(mpd_t *result, const mpd_t *a, int32_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qmul_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qmul_u32(mpd_t *result, const mpd_t *a, uint32_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qfma(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_t *c, const mpd_context_t *ctx, uint32_t *status);
void mpd_qdiv(mpd_t *q, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qdiv_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qdiv_i32(mpd_t *result, const mpd_t *a, int32_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qdiv_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qdiv_u32(mpd_t *result, const mpd_t *a, uint32_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qdivint(mpd_t *q, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qrem(mpd_t *r, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qrem_near(mpd_t *r, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qdivmod(mpd_t *q, mpd_t *r, const mpd_t *a, const mpd_t *b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qpow(mpd_t *result, const mpd_t *base, const mpd_t *exp, const mpd_context_t *ctx, uint32_t *status);
void mpd_qpowmod(mpd_t *result, const mpd_t *base, const mpd_t *exp, const mpd_t *mod, const mpd_context_t *ctx, uint32_t *status);
void mpd_qexp(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qln10(mpd_t *result, mpd_ssize_t prec, uint32_t *status);
void mpd_qln(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qlog10(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qsqrt(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qinvroot(mpd_t *result, const mpd_t *a, const mpd_context_t *ctx, uint32_t *status);
size_t mpd_sizeinbase(mpd_t *a, uint32_t base);
void mpd_qimport_u16(mpd_t *result, const uint16_t *srcdata, size_t srclen,
uint8_t srcsign, uint32_t srcbase,
const mpd_context_t *ctx, uint32_t *status);
void mpd_qimport_u32(mpd_t *result, const uint32_t *srcdata, size_t srclen,
uint8_t srcsign, uint32_t srcbase,
const mpd_context_t *ctx, uint32_t *status);
size_t mpd_qexport_u16(uint16_t *rdata, size_t rlen, uint32_t base,
const mpd_t *src, uint32_t *status);
size_t mpd_qexport_u32(uint32_t *rdata, size_t rlen, uint32_t base,
const mpd_t *src, uint32_t *status);
/******************************************************************************/
/* Signalling functions */
/******************************************************************************/
char * mpd_format(const mpd_t *dec, const char *fmt, mpd_context_t *ctx);
void mpd_import_u16(mpd_t *result, const uint16_t *srcdata, size_t srclen, uint8_t srcsign, uint32_t base, mpd_context_t *ctx);
void mpd_import_u32(mpd_t *result, const uint32_t *srcdata, size_t srclen, uint8_t srcsign, uint32_t base, mpd_context_t *ctx);
size_t mpd_export_u16(uint16_t *rdata, size_t rlen, uint32_t base, const mpd_t *src, mpd_context_t *ctx);
size_t mpd_export_u32(uint32_t *rdata, size_t rlen, uint32_t base, const mpd_t *src, mpd_context_t *ctx);
void mpd_finalize(mpd_t *result, mpd_context_t *ctx);
int mpd_check_nan(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
int mpd_check_nans(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_set_string(mpd_t *result, const char *s, mpd_context_t *ctx);
void mpd_maxcoeff(mpd_t *result, mpd_context_t *ctx);
void mpd_sset_ssize(mpd_t *result, mpd_ssize_t a, mpd_context_t *ctx);
void mpd_sset_i32(mpd_t *result, int32_t a, mpd_context_t *ctx);
void mpd_sset_uint(mpd_t *result, mpd_uint_t a, mpd_context_t *ctx);
void mpd_sset_u32(mpd_t *result, uint32_t a, mpd_context_t *ctx);
void mpd_set_ssize(mpd_t *result, mpd_ssize_t a, mpd_context_t *ctx);
void mpd_set_i32(mpd_t *result, int32_t a, mpd_context_t *ctx);
void mpd_set_uint(mpd_t *result, mpd_uint_t a, mpd_context_t *ctx);
void mpd_set_u32(mpd_t *result, uint32_t a, mpd_context_t *ctx);
#ifndef LEGACY_COMPILER
void mpd_set_i64(mpd_t *result, int64_t a, mpd_context_t *ctx);
void mpd_set_u64(mpd_t *result, uint64_t a, mpd_context_t *ctx);
#endif
mpd_ssize_t mpd_get_ssize(const mpd_t *a, mpd_context_t *ctx);
mpd_uint_t mpd_get_uint(const mpd_t *a, mpd_context_t *ctx);
mpd_uint_t mpd_abs_uint(const mpd_t *a, mpd_context_t *ctx);
void mpd_and(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_copy(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_canonical(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_copy_abs(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_copy_negate(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_copy_sign(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_invert(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_logb(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_or(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_rotate(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_scaleb(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_shiftl(mpd_t *result, const mpd_t *a, mpd_ssize_t n, mpd_context_t *ctx);
mpd_uint_t mpd_shiftr(mpd_t *result, const mpd_t *a, mpd_ssize_t n, mpd_context_t *ctx);
void mpd_shiftn(mpd_t *result, const mpd_t *a, mpd_ssize_t n, mpd_context_t *ctx);
void mpd_shift(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_xor(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_abs(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
int mpd_cmp(const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
int mpd_compare(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
int mpd_compare_signal(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_add(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_add_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, mpd_context_t *ctx);
void mpd_add_i32(mpd_t *result, const mpd_t *a, int32_t b, mpd_context_t *ctx);
void mpd_add_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, mpd_context_t *ctx);
void mpd_add_u32(mpd_t *result, const mpd_t *a, uint32_t b, mpd_context_t *ctx);
void mpd_sub(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_sub_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, mpd_context_t *ctx);
void mpd_sub_i32(mpd_t *result, const mpd_t *a, int32_t b, mpd_context_t *ctx);
void mpd_sub_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, mpd_context_t *ctx);
void mpd_sub_u32(mpd_t *result, const mpd_t *a, uint32_t b, mpd_context_t *ctx);
void mpd_div(mpd_t *q, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_div_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, mpd_context_t *ctx);
void mpd_div_i32(mpd_t *result, const mpd_t *a, int32_t b, mpd_context_t *ctx);
void mpd_div_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, mpd_context_t *ctx);
void mpd_div_u32(mpd_t *result, const mpd_t *a, uint32_t b, mpd_context_t *ctx);
void mpd_divmod(mpd_t *q, mpd_t *r, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_divint(mpd_t *q, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_exp(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_fma(mpd_t *result, const mpd_t *a, const mpd_t *b, const mpd_t *c, mpd_context_t *ctx);
void mpd_ln(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_log10(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_max(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_max_mag(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_min(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_min_mag(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_minus(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_mul(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_mul_ssize(mpd_t *result, const mpd_t *a, mpd_ssize_t b, mpd_context_t *ctx);
void mpd_mul_i32(mpd_t *result, const mpd_t *a, int32_t b, mpd_context_t *ctx);
void mpd_mul_uint(mpd_t *result, const mpd_t *a, mpd_uint_t b, mpd_context_t *ctx);
void mpd_mul_u32(mpd_t *result, const mpd_t *a, uint32_t b, mpd_context_t *ctx);
void mpd_next_minus(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_next_plus(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_next_toward(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_plus(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_pow(mpd_t *result, const mpd_t *base, const mpd_t *exp, mpd_context_t *ctx);
void mpd_powmod(mpd_t *result, const mpd_t *base, const mpd_t *exp, const mpd_t *mod, mpd_context_t *ctx);
void mpd_quantize(mpd_t *result, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_rescale(mpd_t *result, const mpd_t *a, mpd_ssize_t exp, mpd_context_t *ctx);
void mpd_reduce(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_rem(mpd_t *r, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_rem_near(mpd_t *r, const mpd_t *a, const mpd_t *b, mpd_context_t *ctx);
void mpd_round_to_intx(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_round_to_int(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_trunc(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_floor(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_ceil(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_sqrt(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
void mpd_invroot(mpd_t *result, const mpd_t *a, mpd_context_t *ctx);
/******************************************************************************/
/* Configuration specific */
/******************************************************************************/
#ifdef CONFIG_64
void mpd_qsset_i64(mpd_t *result, int64_t a, const mpd_context_t *ctx, uint32_t *status);
void mpd_qsset_u64(mpd_t *result, uint64_t a, const mpd_context_t *ctx, uint32_t *status);
int64_t mpd_qget_i64(const mpd_t *dec, uint32_t *status);
uint64_t mpd_qget_u64(const mpd_t *dec, uint32_t *status);
void mpd_qadd_i64(mpd_t *result, const mpd_t *a, int64_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qadd_u64(mpd_t *result, const mpd_t *a, uint64_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qsub_i64(mpd_t *result, const mpd_t *a, int64_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qsub_u64(mpd_t *result, const mpd_t *a, uint64_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qmul_i64(mpd_t *result, const mpd_t *a, int64_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qmul_u64(mpd_t *result, const mpd_t *a, uint64_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qdiv_i64(mpd_t *result, const mpd_t *a, int64_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_qdiv_u64(mpd_t *result, const mpd_t *a, uint64_t b, const mpd_context_t *ctx, uint32_t *status);
void mpd_sset_i64(mpd_t *result, int64_t a, mpd_context_t *ctx);
void mpd_sset_u64(mpd_t *result, uint64_t a, mpd_context_t *ctx);
int64_t mpd_get_i64(const mpd_t *a, mpd_context_t *ctx);
uint64_t mpd_get_u64(const mpd_t *a, mpd_context_t *ctx);
void mpd_add_i64(mpd_t *result, const mpd_t *a, int64_t b, mpd_context_t *ctx);
void mpd_add_u64(mpd_t *result, const mpd_t *a, uint64_t b, mpd_context_t *ctx);
void mpd_sub_i64(mpd_t *result, const mpd_t *a, int64_t b, mpd_context_t *ctx);
void mpd_sub_u64(mpd_t *result, const mpd_t *a, uint64_t b, mpd_context_t *ctx);
void mpd_div_i64(mpd_t *result, const mpd_t *a, int64_t b, mpd_context_t *ctx);
void mpd_div_u64(mpd_t *result, const mpd_t *a, uint64_t b, mpd_context_t *ctx);
void mpd_mul_i64(mpd_t *result, const mpd_t *a, int64_t b, mpd_context_t *ctx);
void mpd_mul_u64(mpd_t *result, const mpd_t *a, uint64_t b, mpd_context_t *ctx);
#else
int32_t mpd_qget_i32(const mpd_t *dec, uint32_t *status);
uint32_t mpd_qget_u32(const mpd_t *dec, uint32_t *status);
int32_t mpd_get_i32(const mpd_t *a, mpd_context_t *ctx);
uint32_t mpd_get_u32(const mpd_t *a, mpd_context_t *ctx);
#endif
/******************************************************************************/
/* Get attributes of a decimal */
/******************************************************************************/
EXTINLINE mpd_ssize_t mpd_adjexp(const mpd_t *dec);
EXTINLINE mpd_ssize_t mpd_etiny(const mpd_context_t *ctx);
EXTINLINE mpd_ssize_t mpd_etop(const mpd_context_t *ctx);
EXTINLINE mpd_uint_t mpd_msword(const mpd_t *dec);
EXTINLINE int mpd_word_digits(mpd_uint_t word);
/* most significant digit of a word */
EXTINLINE mpd_uint_t mpd_msd(mpd_uint_t word);
/* least significant digit of a word */
EXTINLINE mpd_uint_t mpd_lsd(mpd_uint_t word);
/* coefficient size needed to store 'digits' */
EXTINLINE mpd_ssize_t mpd_digits_to_size(mpd_ssize_t digits);
/* number of digits in the exponent, undefined for MPD_SSIZE_MIN */
EXTINLINE int mpd_exp_digits(mpd_ssize_t exp);
EXTINLINE int mpd_iscanonical(const mpd_t *dec UNUSED);
EXTINLINE int mpd_isfinite(const mpd_t *dec);
EXTINLINE int mpd_isinfinite(const mpd_t *dec);
EXTINLINE int mpd_isinteger(const mpd_t *dec);
EXTINLINE int mpd_isnan(const mpd_t *dec);
EXTINLINE int mpd_isnegative(const mpd_t *dec);
EXTINLINE int mpd_ispositive(const mpd_t *dec);
EXTINLINE int mpd_isqnan(const mpd_t *dec);
EXTINLINE int mpd_issigned(const mpd_t *dec);
EXTINLINE int mpd_issnan(const mpd_t *dec);
EXTINLINE int mpd_isspecial(const mpd_t *dec);
EXTINLINE int mpd_iszero(const mpd_t *dec);
/* undefined for special numbers */
EXTINLINE int mpd_iszerocoeff(const mpd_t *dec);
EXTINLINE int mpd_isnormal(const mpd_t *dec, const mpd_context_t *ctx);
EXTINLINE int mpd_issubnormal(const mpd_t *dec, const mpd_context_t *ctx);
/* odd word */
EXTINLINE int mpd_isoddword(mpd_uint_t word);
/* odd coefficient */
EXTINLINE int mpd_isoddcoeff(const mpd_t *dec);
/* odd decimal, only defined for integers */
int mpd_isodd(const mpd_t *dec);
/* even decimal, only defined for integers */
int mpd_iseven(const mpd_t *dec);
/* 0 if dec is positive, 1 if dec is negative */
EXTINLINE uint8_t mpd_sign(const mpd_t *dec);
/* 1 if dec is positive, -1 if dec is negative */
EXTINLINE int mpd_arith_sign(const mpd_t *dec);
EXTINLINE long mpd_radix(void);
EXTINLINE int mpd_isdynamic(mpd_t *dec);
EXTINLINE int mpd_isstatic(mpd_t *dec);
EXTINLINE int mpd_isdynamic_data(mpd_t *dec);
EXTINLINE int mpd_isstatic_data(mpd_t *dec);
EXTINLINE int mpd_isshared_data(mpd_t *dec);
EXTINLINE int mpd_isconst_data(mpd_t *dec);
EXTINLINE mpd_ssize_t mpd_trail_zeros(const mpd_t *dec);
/******************************************************************************/
/* Set attributes of a decimal */
/******************************************************************************/
/* set number of decimal digits in the coefficient */
EXTINLINE void mpd_setdigits(mpd_t *result);
EXTINLINE void mpd_set_sign(mpd_t *result, uint8_t sign);
/* copy sign from another decimal */
EXTINLINE void mpd_signcpy(mpd_t *result, mpd_t *a);
EXTINLINE void mpd_set_infinity(mpd_t *result);
EXTINLINE void mpd_set_qnan(mpd_t *result);
EXTINLINE void mpd_set_snan(mpd_t *result);
EXTINLINE void mpd_set_negative(mpd_t *result);
EXTINLINE void mpd_set_positive(mpd_t *result);
EXTINLINE void mpd_set_dynamic(mpd_t *result);
EXTINLINE void mpd_set_static(mpd_t *result);
EXTINLINE void mpd_set_dynamic_data(mpd_t *result);
EXTINLINE void mpd_set_static_data(mpd_t *result);
EXTINLINE void mpd_set_shared_data(mpd_t *result);
EXTINLINE void mpd_set_const_data(mpd_t *result);
EXTINLINE void mpd_clear_flags(mpd_t *result);
EXTINLINE void mpd_set_flags(mpd_t *result, uint8_t flags);
EXTINLINE void mpd_copy_flags(mpd_t *result, const mpd_t *a);
/******************************************************************************/
/* Error Macros */
/******************************************************************************/
#define mpd_err_fatal(...) \
Whitespace.
2012-03-21 16:21:20 -03:00
do {fprintf(stderr, "%s:%d: error: ", __FILE__, __LINE__); \
fprintf(stderr, __VA_ARGS__); fputc('\n', stderr); \
Use abort() rather than exit() to appease tools like rpmlint. abort() is used in libmpdec to prevent undefined behavior if an invalid context is used. This cannot occur for the _decimal module since user input for the context is validated.
2012-03-30 09:12:20 -03:00
abort(); \
Whitespace.
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} while (0)
Issue #7652: Integrate the decimal floating point libmpdec library to speed up the decimal module. Performance gains of the new C implementation are between 12x and 80x, depending on the application.
2012-03-21 14:25:23 -03:00
#define mpd_err_warn(...) \
Whitespace.
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do {fprintf(stderr, "%s:%d: warning: ", __FILE__, __LINE__); \
fprintf(stderr, __VA_ARGS__); fputc('\n', stderr); \
} while (0)
Issue #7652: Integrate the decimal floating point libmpdec library to speed up the decimal module. Performance gains of the new C implementation are between 12x and 80x, depending on the application.
2012-03-21 14:25:23 -03:00
/******************************************************************************/
/* Memory handling */
/******************************************************************************/
extern void *(* mpd_mallocfunc)(size_t size);
extern void *(* mpd_callocfunc)(size_t nmemb, size_t size);
extern void *(* mpd_reallocfunc)(void *ptr, size_t size);
extern void (* mpd_free)(void *ptr);
void *mpd_callocfunc_em(size_t nmemb, size_t size);
void *mpd_alloc(mpd_size_t nmemb, mpd_size_t size);
void *mpd_calloc(mpd_size_t nmemb, mpd_size_t size);
void *mpd_realloc(void *ptr, mpd_size_t nmemb, mpd_size_t size, uint8_t *err);
void *mpd_sh_alloc(mpd_size_t struct_size, mpd_size_t nmemb, mpd_size_t size);
mpd_t *mpd_qnew(void);
mpd_t *mpd_new(mpd_context_t *ctx);
mpd_t *mpd_qnew_size(mpd_ssize_t size);
void mpd_del(mpd_t *dec);
void mpd_uint_zero(mpd_uint_t *dest, mpd_size_t len);
int mpd_qresize(mpd_t *result, mpd_ssize_t size, uint32_t *status);
int mpd_qresize_zero(mpd_t *result, mpd_ssize_t size, uint32_t *status);
void mpd_minalloc(mpd_t *result);
int mpd_resize(mpd_t *result, mpd_ssize_t size, mpd_context_t *ctx);
int mpd_resize_zero(mpd_t *result, mpd_ssize_t size, mpd_context_t *ctx);
#ifdef __cplusplus
} /* END extern "C" */
#endif
#endif /* MPDECIMAL_H */