693 lines
22 KiB
C
693 lines
22 KiB
C
/****************************************************************
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The author of this software is David M. Gay.
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Copyright (C) 1998-2000 by Lucent Technologies
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and
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its documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appear in all
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copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of Lucent or any of its entities
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not be used in advertising or publicity pertaining to
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distribution of the software without specific, written prior
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permission.
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LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
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IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
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SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
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THIS SOFTWARE.
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****************************************************************/
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/* $FreeBSD$ */
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/* This is a variation on dtoa.c that converts arbitary binary
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floating-point formats to and from decimal notation. It uses
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double-precision arithmetic internally, so there are still
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various #ifdefs that adapt the calculations to the native
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double-precision arithmetic (any of IEEE, VAX D_floating,
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or IBM mainframe arithmetic).
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Please send bug reports to
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David M. Gay
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Bell Laboratories, Room 2C-463
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600 Mountain Avenue
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Murray Hill, NJ 07974-0636
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U.S.A.
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dmg@bell-labs.com
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*/
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/* On a machine with IEEE extended-precision registers, it is
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* necessary to specify double-precision (53-bit) rounding precision
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* before invoking strtod or dtoa. If the machine uses (the equivalent
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* of) Intel 80x87 arithmetic, the call
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* _control87(PC_53, MCW_PC);
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* does this with many compilers. Whether this or another call is
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* appropriate depends on the compiler; for this to work, it may be
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* necessary to #include "float.h" or another system-dependent header
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* file.
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*/
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/* strtod for IEEE-, VAX-, and IBM-arithmetic machines.
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*
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* This strtod returns a nearest machine number to the input decimal
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* string (or sets errno to ERANGE). With IEEE arithmetic, ties are
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* broken by the IEEE round-even rule. Otherwise ties are broken by
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* biased rounding (add half and chop).
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*
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* Inspired loosely by William D. Clinger's paper "How to Read Floating
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* Point Numbers Accurately" [Proc. ACM SIGPLAN '90, pp. 92-101].
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*
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* Modifications:
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*
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* 1. We only require IEEE, IBM, or VAX double-precision
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* arithmetic (not IEEE double-extended).
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* 2. We get by with floating-point arithmetic in a case that
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* Clinger missed -- when we're computing d * 10^n
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* for a small integer d and the integer n is not too
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* much larger than 22 (the maximum integer k for which
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* we can represent 10^k exactly), we may be able to
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* compute (d*10^k) * 10^(e-k) with just one roundoff.
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* 3. Rather than a bit-at-a-time adjustment of the binary
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* result in the hard case, we use floating-point
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* arithmetic to determine the adjustment to within
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* one bit; only in really hard cases do we need to
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* compute a second residual.
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* 4. Because of 3., we don't need a large table of powers of 10
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* for ten-to-e (just some small tables, e.g. of 10^k
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* for 0 <= k <= 22).
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*/
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/*
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* #define IEEE_8087 for IEEE-arithmetic machines where the least
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* significant byte has the lowest address.
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* #define IEEE_MC68k for IEEE-arithmetic machines where the most
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* significant byte has the lowest address.
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* #define Long int on machines with 32-bit ints and 64-bit longs.
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* #define Sudden_Underflow for IEEE-format machines without gradual
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* underflow (i.e., that flush to zero on underflow).
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* #define IBM for IBM mainframe-style floating-point arithmetic.
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* #define VAX for VAX-style floating-point arithmetic (D_floating).
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* #define No_leftright to omit left-right logic in fast floating-point
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* computation of dtoa.
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* #define Check_FLT_ROUNDS if FLT_ROUNDS can assume the values 2 or 3.
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* #define RND_PRODQUOT to use rnd_prod and rnd_quot (assembly routines
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* that use extended-precision instructions to compute rounded
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* products and quotients) with IBM.
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* #define ROUND_BIASED for IEEE-format with biased rounding.
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* #define Inaccurate_Divide for IEEE-format with correctly rounded
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* products but inaccurate quotients, e.g., for Intel i860.
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* #define NO_LONG_LONG on machines that do not have a "long long"
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* integer type (of >= 64 bits). On such machines, you can
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* #define Just_16 to store 16 bits per 32-bit Long when doing
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* high-precision integer arithmetic. Whether this speeds things
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* up or slows things down depends on the machine and the number
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* being converted. If long long is available and the name is
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* something other than "long long", #define Llong to be the name,
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* and if "unsigned Llong" does not work as an unsigned version of
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* Llong, #define #ULLong to be the corresponding unsigned type.
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* #define KR_headers for old-style C function headers.
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* #define Bad_float_h if your system lacks a float.h or if it does not
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* define some or all of DBL_DIG, DBL_MAX_10_EXP, DBL_MAX_EXP,
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* FLT_RADIX, FLT_ROUNDS, and DBL_MAX.
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* #define MALLOC your_malloc, where your_malloc(n) acts like malloc(n)
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* if memory is available and otherwise does something you deem
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* appropriate. If MALLOC is undefined, malloc will be invoked
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* directly -- and assumed always to succeed.
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* #define Omit_Private_Memory to omit logic (added Jan. 1998) for making
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* memory allocations from a private pool of memory when possible.
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* When used, the private pool is PRIVATE_MEM bytes long: 2304 bytes,
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* unless #defined to be a different length. This default length
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* suffices to get rid of MALLOC calls except for unusual cases,
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* such as decimal-to-binary conversion of a very long string of
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* digits. When converting IEEE double precision values, the
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* longest string gdtoa can return is about 751 bytes long. For
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* conversions by strtod of strings of 800 digits and all gdtoa
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* conversions of IEEE doubles in single-threaded executions with
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* 8-byte pointers, PRIVATE_MEM >= 7400 appears to suffice; with
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* 4-byte pointers, PRIVATE_MEM >= 7112 appears adequate.
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* #define INFNAN_CHECK on IEEE systems to cause strtod to check for
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* Infinity and NaN (case insensitively). On some systems (e.g.,
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* some HP systems), it may be necessary to #define NAN_WORD0
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* appropriately -- to the most significant word of a quiet NaN.
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* (On HP Series 700/800 machines, -DNAN_WORD0=0x7ff40000 works.)
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* When INFNAN_CHECK is #defined and No_Hex_NaN is not #defined,
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* strtodg also accepts (case insensitively) strings of the form
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* NaN(x), where x is a string of hexadecimal digits and spaces;
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* if there is only one string of hexadecimal digits, it is taken
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* for the fraction bits of the resulting NaN; if there are two or
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* more strings of hexadecimal digits, each string is assigned
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* to the next available sequence of 32-bit words of fractions
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* bits (starting with the most significant), right-aligned in
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* each sequence.
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* #define MULTIPLE_THREADS if the system offers preemptively scheduled
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* multiple threads. In this case, you must provide (or suitably
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* #define) two locks, acquired by ACQUIRE_DTOA_LOCK(n) and freed
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* by FREE_DTOA_LOCK(n) for n = 0 or 1. (The second lock, accessed
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* in pow5mult, ensures lazy evaluation of only one copy of high
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* powers of 5; omitting this lock would introduce a small
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* probability of wasting memory, but would otherwise be harmless.)
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* You must also invoke freedtoa(s) to free the value s returned by
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* dtoa. You may do so whether or not MULTIPLE_THREADS is #defined.
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* #define IMPRECISE_INEXACT if you do not care about the setting of
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* the STRTOG_Inexact bits in the special case of doing IEEE double
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* precision conversions (which could also be done by the strtog in
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* dtoa.c).
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* #define NO_HEX_FP to disable recognition of C9x's hexadecimal
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* floating-point constants.
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* #define -DNO_ERRNO to suppress setting errno (in strtod.c and
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* strtodg.c).
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* #define NO_STRING_H to use private versions of memcpy.
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* On some K&R systems, it may also be necessary to
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* #define DECLARE_SIZE_T in this case.
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* #define YES_ALIAS to permit aliasing certain double values with
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* arrays of ULongs. This leads to slightly better code with
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* some compilers and was always used prior to 19990916, but it
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* is not strictly legal and can cause trouble with aggressively
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* optimizing compilers (e.g., gcc 2.95.1 under -O2).
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* #define USE_LOCALE to use the current locale's decimal_point value.
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*/
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#ifndef GDTOAIMP_H_INCLUDED
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#define GDTOAIMP_H_INCLUDED
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#include "gdtoa.h"
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#ifdef DEBUG
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#include "stdio.h"
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#define Bug(x) {fprintf(stderr, "%s\n", x); exit(1);}
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#endif
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#include "limits.h"
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#include "stdlib.h"
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#include "string.h"
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#include "libc_private.h"
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#include "namespace.h"
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#include <pthread.h>
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#include "un-namespace.h"
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#ifdef KR_headers
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#define Char char
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#else
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#define Char void
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#endif
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#ifdef MALLOC
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extern Char *MALLOC ANSI((size_t));
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#else
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#define MALLOC malloc
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#endif
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#define INFNAN_CHECK
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#define USE_LOCALE
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#define Honor_FLT_ROUNDS
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#undef IEEE_Arith
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#undef Avoid_Underflow
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#ifdef IEEE_MC68k
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#define IEEE_Arith
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#endif
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#ifdef IEEE_8087
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#define IEEE_Arith
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#endif
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#include "errno.h"
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#ifdef Bad_float_h
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#ifdef IEEE_Arith
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#define DBL_DIG 15
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#define DBL_MAX_10_EXP 308
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#define DBL_MAX_EXP 1024
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#define FLT_RADIX 2
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#define DBL_MAX 1.7976931348623157e+308
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#endif
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#ifdef IBM
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#define DBL_DIG 16
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#define DBL_MAX_10_EXP 75
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#define DBL_MAX_EXP 63
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#define FLT_RADIX 16
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#define DBL_MAX 7.2370055773322621e+75
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#endif
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#ifdef VAX
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#define DBL_DIG 16
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#define DBL_MAX_10_EXP 38
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#define DBL_MAX_EXP 127
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#define FLT_RADIX 2
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#define DBL_MAX 1.7014118346046923e+38
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#define n_bigtens 2
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#endif
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#ifndef LONG_MAX
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#define LONG_MAX 2147483647
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#endif
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#else /* ifndef Bad_float_h */
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#include "float.h"
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#endif /* Bad_float_h */
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#ifdef IEEE_Arith
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#define Scale_Bit 0x10
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#define n_bigtens 5
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#endif
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#ifdef IBM
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#define n_bigtens 3
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#endif
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#ifdef VAX
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#define n_bigtens 2
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#endif
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#ifndef __MATH_H__
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#include "math.h"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if defined(IEEE_8087) + defined(IEEE_MC68k) + defined(VAX) + defined(IBM) != 1
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Exactly one of IEEE_8087, IEEE_MC68k, VAX, or IBM should be defined.
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#endif
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typedef union { double d; ULong L[2]; } U;
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#ifdef YES_ALIAS
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#define dval(x) x
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#ifdef IEEE_8087
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#define word0(x) ((ULong *)&x)[1]
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#define word1(x) ((ULong *)&x)[0]
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#else
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#define word0(x) ((ULong *)&x)[0]
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#define word1(x) ((ULong *)&x)[1]
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#endif
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#else /* !YES_ALIAS */
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#ifdef IEEE_8087
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#define word0(x) ((U*)&x)->L[1]
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#define word1(x) ((U*)&x)->L[0]
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#else
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#define word0(x) ((U*)&x)->L[0]
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#define word1(x) ((U*)&x)->L[1]
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#endif
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#define dval(x) ((U*)&x)->d
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#endif /* YES_ALIAS */
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/* The following definition of Storeinc is appropriate for MIPS processors.
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* An alternative that might be better on some machines is
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* #define Storeinc(a,b,c) (*a++ = b << 16 | c & 0xffff)
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*/
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#if defined(IEEE_8087) + defined(VAX)
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#define Storeinc(a,b,c) (((unsigned short *)a)[1] = (unsigned short)b, \
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((unsigned short *)a)[0] = (unsigned short)c, a++)
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#else
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#define Storeinc(a,b,c) (((unsigned short *)a)[0] = (unsigned short)b, \
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((unsigned short *)a)[1] = (unsigned short)c, a++)
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#endif
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/* #define P DBL_MANT_DIG */
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/* Ten_pmax = floor(P*log(2)/log(5)) */
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/* Bletch = (highest power of 2 < DBL_MAX_10_EXP) / 16 */
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/* Quick_max = floor((P-1)*log(FLT_RADIX)/log(10) - 1) */
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/* Int_max = floor(P*log(FLT_RADIX)/log(10) - 1) */
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#ifdef IEEE_Arith
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#define Exp_shift 20
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#define Exp_shift1 20
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#define Exp_msk1 0x100000
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#define Exp_msk11 0x100000
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#define Exp_mask 0x7ff00000
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#define P 53
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#define Bias 1023
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#define Emin (-1022)
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#define Exp_1 0x3ff00000
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#define Exp_11 0x3ff00000
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#define Ebits 11
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#define Frac_mask 0xfffff
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#define Frac_mask1 0xfffff
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#define Ten_pmax 22
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#define Bletch 0x10
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#define Bndry_mask 0xfffff
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#define Bndry_mask1 0xfffff
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#define LSB 1
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#define Sign_bit 0x80000000
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#define Log2P 1
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#define Tiny0 0
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#define Tiny1 1
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#define Quick_max 14
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#define Int_max 14
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#ifndef Flt_Rounds
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#ifdef FLT_ROUNDS
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#define Flt_Rounds FLT_ROUNDS
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#else
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#define Flt_Rounds 1
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#endif
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#endif /*Flt_Rounds*/
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#else /* ifndef IEEE_Arith */
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#undef Sudden_Underflow
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#define Sudden_Underflow
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#ifdef IBM
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#undef Flt_Rounds
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#define Flt_Rounds 0
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#define Exp_shift 24
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#define Exp_shift1 24
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#define Exp_msk1 0x1000000
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#define Exp_msk11 0x1000000
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#define Exp_mask 0x7f000000
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#define P 14
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#define Bias 65
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#define Exp_1 0x41000000
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#define Exp_11 0x41000000
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#define Ebits 8 /* exponent has 7 bits, but 8 is the right value in b2d */
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#define Frac_mask 0xffffff
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#define Frac_mask1 0xffffff
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#define Bletch 4
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#define Ten_pmax 22
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#define Bndry_mask 0xefffff
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#define Bndry_mask1 0xffffff
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#define LSB 1
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#define Sign_bit 0x80000000
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#define Log2P 4
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#define Tiny0 0x100000
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#define Tiny1 0
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#define Quick_max 14
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#define Int_max 15
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#else /* VAX */
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#undef Flt_Rounds
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#define Flt_Rounds 1
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#define Exp_shift 23
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#define Exp_shift1 7
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#define Exp_msk1 0x80
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#define Exp_msk11 0x800000
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#define Exp_mask 0x7f80
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#define P 56
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#define Bias 129
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#define Exp_1 0x40800000
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#define Exp_11 0x4080
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#define Ebits 8
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#define Frac_mask 0x7fffff
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#define Frac_mask1 0xffff007f
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#define Ten_pmax 24
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#define Bletch 2
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#define Bndry_mask 0xffff007f
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#define Bndry_mask1 0xffff007f
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#define LSB 0x10000
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#define Sign_bit 0x8000
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#define Log2P 1
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#define Tiny0 0x80
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#define Tiny1 0
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#define Quick_max 15
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#define Int_max 15
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#endif /* IBM, VAX */
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#endif /* IEEE_Arith */
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#ifndef IEEE_Arith
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#define ROUND_BIASED
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#endif
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#ifdef RND_PRODQUOT
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#define rounded_product(a,b) a = rnd_prod(a, b)
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#define rounded_quotient(a,b) a = rnd_quot(a, b)
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#ifdef KR_headers
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extern double rnd_prod(), rnd_quot();
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#else
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extern double rnd_prod(double, double), rnd_quot(double, double);
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#endif
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#else
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#define rounded_product(a,b) a *= b
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#define rounded_quotient(a,b) a /= b
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#endif
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#define Big0 (Frac_mask1 | Exp_msk1*(DBL_MAX_EXP+Bias-1))
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#define Big1 0xffffffff
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#undef Pack_16
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#ifndef Pack_32
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#define Pack_32
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#endif
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#ifdef NO_LONG_LONG
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#undef ULLong
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#ifdef Just_16
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#undef Pack_32
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#define Pack_16
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/* When Pack_32 is not defined, we store 16 bits per 32-bit Long.
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* This makes some inner loops simpler and sometimes saves work
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* during multiplications, but it often seems to make things slightly
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* slower. Hence the default is now to store 32 bits per Long.
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*/
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#endif
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#else /* long long available */
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#ifndef Llong
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#define Llong long long
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#endif
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#ifndef ULLong
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#define ULLong unsigned Llong
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#endif
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#endif /* NO_LONG_LONG */
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#ifdef Pack_32
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#define ULbits 32
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#define kshift 5
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#define kmask 31
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#define ALL_ON 0xffffffff
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#else
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#define ULbits 16
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#define kshift 4
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#define kmask 15
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#define ALL_ON 0xffff
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#endif
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#define MULTIPLE_THREADS
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extern pthread_mutex_t __gdtoa_locks[2];
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#define ACQUIRE_DTOA_LOCK(n) do { \
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if (__isthreaded) \
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_pthread_mutex_lock(&__gdtoa_locks[n]); \
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} while(0)
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#define FREE_DTOA_LOCK(n) do { \
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if (__isthreaded) \
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|
_pthread_mutex_unlock(&__gdtoa_locks[n]); \
|
|
} while(0)
|
|
|
|
#define Kmax 15
|
|
|
|
struct
|
|
Bigint {
|
|
struct Bigint *next;
|
|
int k, maxwds, sign, wds;
|
|
ULong x[1];
|
|
};
|
|
|
|
typedef struct Bigint Bigint;
|
|
|
|
#ifdef NO_STRING_H
|
|
#ifdef DECLARE_SIZE_T
|
|
typedef unsigned int size_t;
|
|
#endif
|
|
extern void memcpy_D2A ANSI((void*, const void*, size_t));
|
|
#define Bcopy(x,y) memcpy_D2A(&x->sign,&y->sign,y->wds*sizeof(ULong) + 2*sizeof(int))
|
|
#else /* !NO_STRING_H */
|
|
#define Bcopy(x,y) memcpy(&x->sign,&y->sign,y->wds*sizeof(ULong) + 2*sizeof(int))
|
|
#endif /* NO_STRING_H */
|
|
|
|
/*
|
|
* Paranoia: Protect exported symbols, including ones in files we don't
|
|
* compile right now. The standard strtof and strtod survive.
|
|
*/
|
|
#define dtoa __dtoa
|
|
#define gdtoa __gdtoa
|
|
#define freedtoa __freedtoa
|
|
#define strtodg __strtodg
|
|
#define g_ddfmt __g_ddfmt
|
|
#define g_dfmt __g_dfmt
|
|
#define g_ffmt __g_ffmt
|
|
#define g_Qfmt __g_Qfmt
|
|
#define g_xfmt __g_xfmt
|
|
#define g_xLfmt __g_xLfmt
|
|
#define strtoId __strtoId
|
|
#define strtoIdd __strtoIdd
|
|
#define strtoIf __strtoIf
|
|
#define strtoIQ __strtoIQ
|
|
#define strtoIx __strtoIx
|
|
#define strtoIxL __strtoIxL
|
|
#define strtord __strtord
|
|
#define strtordd __strtordd
|
|
#define strtorf __strtorf
|
|
#define strtorQ __strtorQ
|
|
#define strtorx __strtorx
|
|
#define strtorxL __strtorxL
|
|
#define strtodI __strtodI
|
|
#define strtopd __strtopd
|
|
#define strtopdd __strtopdd
|
|
#define strtopf __strtopf
|
|
#define strtopQ __strtopQ
|
|
#define strtopx __strtopx
|
|
#define strtopxL __strtopxL
|
|
|
|
/* Protect gdtoa-internal symbols */
|
|
#define Balloc __Balloc_D2A
|
|
#define Bfree __Bfree_D2A
|
|
#define ULtoQ __ULtoQ_D2A
|
|
#define ULtof __ULtof_D2A
|
|
#define ULtod __ULtod_D2A
|
|
#define ULtodd __ULtodd_D2A
|
|
#define ULtox __ULtox_D2A
|
|
#define ULtoxL __ULtoxL_D2A
|
|
#define any_on __any_on_D2A
|
|
#define b2d __b2d_D2A
|
|
#define bigtens __bigtens_D2A
|
|
#define cmp __cmp_D2A
|
|
#define copybits __copybits_D2A
|
|
#define d2b __d2b_D2A
|
|
#define decrement __decrement_D2A
|
|
#define diff __diff_D2A
|
|
#define dtoa_result __dtoa_result_D2A
|
|
#define g__fmt __g__fmt_D2A
|
|
#define gethex __gethex_D2A
|
|
#define hexdig __hexdig_D2A
|
|
#define hexdig_init_D2A __hexdig_init_D2A
|
|
#define hexnan __hexnan_D2A
|
|
#define hi0bits __hi0bits_D2A
|
|
#define i2b __i2b_D2A
|
|
#define increment __increment_D2A
|
|
#define lo0bits __lo0bits_D2A
|
|
#define lshift __lshift_D2A
|
|
#define match __match_D2A
|
|
#define mult __mult_D2A
|
|
#define multadd __multadd_D2A
|
|
#define nrv_alloc __nrv_alloc_D2A
|
|
#define pow5mult __pow5mult_D2A
|
|
#define quorem __quorem_D2A
|
|
#define ratio __ratio_D2A
|
|
#define rshift __rshift_D2A
|
|
#define rv_alloc __rv_alloc_D2A
|
|
#define s2b __s2b_D2A
|
|
#define set_ones __set_ones_D2A
|
|
#define strcp __strcp_D2A
|
|
#define strcp_D2A __strcp_D2A
|
|
#define strtoIg __strtoIg_D2A
|
|
#define sum __sum_D2A
|
|
#define tens __tens_D2A
|
|
#define tinytens __tinytens_D2A
|
|
#define tinytens __tinytens_D2A
|
|
#define trailz __trailz_D2A
|
|
#define ulp __ulp_D2A
|
|
|
|
extern char *dtoa_result;
|
|
extern CONST double bigtens[], tens[], tinytens[];
|
|
extern unsigned char hexdig[];
|
|
|
|
extern Bigint *Balloc ANSI((int));
|
|
extern void Bfree ANSI((Bigint*));
|
|
extern void ULtof ANSI((ULong*, ULong*, Long, int));
|
|
extern void ULtod ANSI((ULong*, ULong*, Long, int));
|
|
extern void ULtodd ANSI((ULong*, ULong*, Long, int));
|
|
extern void ULtoQ ANSI((ULong*, ULong*, Long, int));
|
|
extern void ULtox ANSI((UShort*, ULong*, Long, int));
|
|
extern void ULtoxL ANSI((ULong*, ULong*, Long, int));
|
|
extern ULong any_on ANSI((Bigint*, int));
|
|
extern double b2d ANSI((Bigint*, int*));
|
|
extern int cmp ANSI((Bigint*, Bigint*));
|
|
extern void copybits ANSI((ULong*, int, Bigint*));
|
|
extern Bigint *d2b ANSI((double, int*, int*));
|
|
extern int decrement ANSI((Bigint*));
|
|
extern Bigint *diff ANSI((Bigint*, Bigint*));
|
|
extern char *dtoa ANSI((double d, int mode, int ndigits,
|
|
int *decpt, int *sign, char **rve));
|
|
extern void freedtoa ANSI((char*));
|
|
extern char *gdtoa ANSI((FPI *fpi, int be, ULong *bits, int *kindp,
|
|
int mode, int ndigits, int *decpt, char **rve));
|
|
extern char *g__fmt ANSI((char*, char*, char*, int, ULong));
|
|
extern int gethex ANSI((CONST char**, FPI*, Long*, Bigint**, int));
|
|
extern void hexdig_init_D2A(Void);
|
|
extern int hexnan ANSI((CONST char**, FPI*, ULong*));
|
|
extern int hi0bits ANSI((ULong));
|
|
extern Bigint *i2b ANSI((int));
|
|
extern Bigint *increment ANSI((Bigint*));
|
|
extern int lo0bits ANSI((ULong*));
|
|
extern Bigint *lshift ANSI((Bigint*, int));
|
|
extern int match ANSI((CONST char**, char*));
|
|
extern Bigint *mult ANSI((Bigint*, Bigint*));
|
|
extern Bigint *multadd ANSI((Bigint*, int, int));
|
|
extern char *nrv_alloc ANSI((char*, char **, int));
|
|
extern Bigint *pow5mult ANSI((Bigint*, int));
|
|
extern int quorem ANSI((Bigint*, Bigint*));
|
|
extern double ratio ANSI((Bigint*, Bigint*));
|
|
extern void rshift ANSI((Bigint*, int));
|
|
extern char *rv_alloc ANSI((int));
|
|
extern Bigint *s2b ANSI((CONST char*, int, int, ULong));
|
|
extern Bigint *set_ones ANSI((Bigint*, int));
|
|
extern char *strcp ANSI((char*, const char*));
|
|
extern int strtodg ANSI((CONST char*, char**, FPI*, Long*, ULong*));
|
|
|
|
extern int strtoId ANSI((CONST char *, char **, double *, double *));
|
|
extern int strtoIdd ANSI((CONST char *, char **, double *, double *));
|
|
extern int strtoIf ANSI((CONST char *, char **, float *, float *));
|
|
extern int strtoIg ANSI((CONST char*, char**, FPI*, Long*, Bigint**, int*));
|
|
extern int strtoIQ ANSI((CONST char *, char **, void *, void *));
|
|
extern int strtoIx ANSI((CONST char *, char **, void *, void *));
|
|
extern int strtoIxL ANSI((CONST char *, char **, void *, void *));
|
|
extern double strtod ANSI((const char *s00, char **se));
|
|
extern int strtopQ ANSI((CONST char *, char **, Void *));
|
|
extern int strtopf ANSI((CONST char *, char **, float *));
|
|
extern int strtopd ANSI((CONST char *, char **, double *));
|
|
extern int strtopdd ANSI((CONST char *, char **, double *));
|
|
extern int strtopx ANSI((CONST char *, char **, Void *));
|
|
extern int strtopxL ANSI((CONST char *, char **, Void *));
|
|
extern int strtord ANSI((CONST char *, char **, int, double *));
|
|
extern int strtordd ANSI((CONST char *, char **, int, double *));
|
|
extern int strtorf ANSI((CONST char *, char **, int, float *));
|
|
extern int strtorQ ANSI((CONST char *, char **, int, void *));
|
|
extern int strtorx ANSI((CONST char *, char **, int, void *));
|
|
extern int strtorxL ANSI((CONST char *, char **, int, void *));
|
|
extern Bigint *sum ANSI((Bigint*, Bigint*));
|
|
extern int trailz ANSI((Bigint*));
|
|
extern double ulp ANSI((double));
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
#ifdef IEEE_Arith
|
|
#ifdef IEEE_MC68k
|
|
#define _0 0
|
|
#define _1 1
|
|
#else
|
|
#define _0 1
|
|
#define _1 0
|
|
#endif
|
|
#else
|
|
#undef INFNAN_CHECK
|
|
#endif
|
|
|
|
#ifdef INFNAN_CHECK
|
|
|
|
#ifndef NAN_WORD0
|
|
#define NAN_WORD0 0x7ff80000
|
|
#endif
|
|
|
|
#ifndef NAN_WORD1
|
|
#define NAN_WORD1 0
|
|
#endif
|
|
#endif /* INFNAN_CHECK */
|
|
|
|
#undef SI
|
|
#ifdef Sudden_Underflow
|
|
#define SI 1
|
|
#else
|
|
#define SI 0
|
|
#endif
|
|
|
|
#endif /* GDTOAIMP_H_INCLUDED */
|