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Diffstat (limited to 'regress/lib/libc/cephes/mconf.h')
| -rw-r--r-- | regress/lib/libc/cephes/mconf.h | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/regress/lib/libc/cephes/mconf.h b/regress/lib/libc/cephes/mconf.h new file mode 100644 index 00000000000..a92bd3ab643 --- /dev/null +++ b/regress/lib/libc/cephes/mconf.h @@ -0,0 +1,187 @@ +/* $OpenBSD: mconf.h,v 1.1 2011/07/02 18:11:01 martynas Exp $ */ + +/* + * Copyright (c) 2008 Stephen L. Moshier <steve@moshier.net> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* mconf.h + * + * Common include file for math routines + * + * + * + * SYNOPSIS: + * + * #include "mconf.h" + * + * + * + * DESCRIPTION: + * + * This file contains definitions for error codes that are + * passed to the common error handling routine mtherr() + * (which see). + * + * The file also includes a conditional assembly definition + * for the type of computer arithmetic (IEEE, DEC, Motorola + * IEEE, or UNKnown). + * + * For Digital Equipment PDP-11 and VAX computers, certain + * IBM systems, and others that use numbers with a 56-bit + * significand, the symbol DEC should be defined. In this + * mode, most floating point constants are given as arrays + * of octal integers to eliminate decimal to binary conversion + * errors that might be introduced by the compiler. + * + * For little-endian computers, such as IBM PC, that follow the + * IEEE Standard for Binary Floating Point Arithmetic (ANSI/IEEE + * Std 754-1985), the symbol IBMPC should be defined. These + * numbers have 53-bit significands. In this mode, constants + * are provided as arrays of hexadecimal 16 bit integers. + * + * Big-endian IEEE format is denoted MIEEE. On some RISC + * systems such as Sun SPARC, double precision constants + * must be stored on 8-byte address boundaries. Since integer + * arrays may be aligned differently, the MIEEE configuration + * may fail on such machines. + * + * To accommodate other types of computer arithmetic, all + * constants are also provided in a normal decimal radix + * which one can hope are correctly converted to a suitable + * format by the available C language compiler. To invoke + * this mode, define the symbol UNK. + * + * An important difference among these modes is a predefined + * set of machine arithmetic constants for each. The numbers + * MACHEP (the machine roundoff error), MAXNUM (largest number + * represented), and several other parameters are preset by + * the configuration symbol. Check the file const.c to + * ensure that these values are correct for your computer. + * + * Configurations NANS, INFINITIES, MINUSZERO, and DENORMAL + * may fail on many systems. Verify that they are supposed + * to work on your computer. + */ + +#include <sys/types.h> +#include <sys/endian.h> + +/* Constant definitions for math error conditions + */ + +#define DOMAIN 1 /* argument domain error */ +#define SING 2 /* argument singularity */ +#define OVERFLOW 3 /* overflow range error */ +#define UNDERFLOW 4 /* underflow range error */ +#define TLOSS 5 /* total loss of precision */ +#define PLOSS 6 /* partial loss of precision */ + +#define EDOM 33 +#define ERANGE 34 + +/* Complex numeral. */ +typedef struct + { + double r; + double i; + } cmplx; + +/* Long double complex numeral. */ +typedef struct + { + double r; + double i; + } cmplxl; + +/* Type of computer arithmetic */ + +/* PDP-11, Pro350, VAX: + */ +#ifdef __vax__ +#define DEC 1 +#endif /* __vax__ */ + +/* Intel IEEE, low order words come first: + */ +/* #define IBMPC 1 */ + +/* Motorola IEEE, high order words come first + * (Sun 680x0 workstation): + */ +/* #define MIEEE 1 */ + +/* UNKnown arithmetic, invokes coefficients given in + * normal decimal format. Beware of range boundary + * problems (MACHEP, MAXLOG, etc. in const.c) and + * roundoff problems in pow.c: + * (Sun SPARCstation) + */ +#ifndef __vax__ +#define UNK 1 +#endif /* !__vax__ */ + +/* If you define UNK, then be sure to set BIGENDIAN properly. */ +#if BYTE_ORDER == BIG_ENDIAN +#define BIGENDIAN 1 +#endif /* BYTE_ORDER == BIG_ENDIAN */ + +/* Define this `volatile' if your compiler thinks + * that floating point arithmetic obeys the associative + * and distributive laws. It will defeat some optimizations + * (but probably not enough of them). + * + * #define VOLATILE volatile + */ +#define VOLATILE + +/* For 12-byte long doubles on an i386, pad a 16-bit short 0 + * to the end of real constants initialized by integer arrays. + * + * #define XPD 0, + * + * Otherwise, the type is 10 bytes long and XPD should be + * defined blank (e.g., Microsoft C). + * + * #define XPD + */ +#define XPD 0, + +/* Define to support tiny denormal numbers, else undefine. */ +#ifndef __vax__ +#define DENORMAL 1 +#endif /* !__vax__ */ + +/* Define to ask for infinity support, else undefine. */ +#ifndef __vax__ +#define INFINITIES 1 +#endif /* !__vax__ */ + +/* Define to ask for support of numbers that are Not-a-Number, + else undefine. This may automatically define INFINITIES in some files. */ +#ifndef __vax__ +#define NANS 1 +#endif /* !__vax__ */ + +/* Define to distinguish between -0.0 and +0.0. */ +#define MINUSZERO 1 + +/* Define 1 for ANSI C atan2() function + See atan.c and clog.c. */ +#define ANSIC 1 + +int mtherr(); + +/* Variable for error reporting. See mtherr.c. */ +extern int merror; |