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Diffstat (limited to 'mconf.h')
| -rw-r--r-- | mconf.h | 200 |
1 files changed, 200 insertions, 0 deletions
@@ -0,0 +1,200 @@ +/* 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. + */ +/* +Cephes Math Library Release 2.3: June, 1995 +Copyright 1984, 1987, 1989, 1995 by Stephen L. Moshier +*/ + + +/* Define if the `long double' type works. */ +#define HAVE_LONG_DOUBLE 1 + +/* Define as the return type of signal handlers (int or void). */ +#define RETSIGTYPE void + +/* Define if you have the ANSI C header files. */ +#define STDC_HEADERS 1 + +/* Define if your processor stores words with the most significant + byte first (like Motorola and SPARC, unlike Intel and VAX). */ +/* #undef WORDS_BIGENDIAN */ + +/* Define if floating point words are bigendian. */ +/* #undef FLOAT_WORDS_BIGENDIAN */ + +/* The number of bytes in a int. */ +#define SIZEOF_INT 4 + +/* Define if you have the <string.h> header file. */ +#define HAVE_STRING_H 1 + +/* Name of package */ +#define PACKAGE "cephes" + +/* Version number of package */ +#define VERSION "2.7" + +/* Constant definitions for math error conditions + */ +#ifndef NT +#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 */ +#endif
+ +#define EDOM 33 +#define ERANGE 34 +/* Complex numeral. */ +typedef struct + { + double r; + double i; + } cmplx; + +#ifdef HAVE_LONG_DOUBLE +/* Long double complex numeral. */ +typedef struct + { + long double r; + long double i; + } cmplxl; +#endif + + +/* Type of computer arithmetic */ + +/* PDP-11, Pro350, VAX: + */ +/* #define DEC 1 */ + +/* 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) + */ +#define UNK 1 + +/* If you define UNK, then be sure to set BIGENDIAN properly. */ +#ifdef FLOAT_WORDS_BIGENDIAN +#define BIGENDIAN 1 +#else +#define BIGENDIAN 0 +#endif +/* 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. */ +#define DENORMAL 1 + +/* Define to ask for infinity support, else undefine. */ +#define INFINITIES 1 + +/* Define to ask for support of numbers that are Not-a-Number, + else undefine. This may automatically define INFINITIES in some files. */ +#define NANS 1 + +/* 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 + +/* Get ANSI function prototypes, if you want them. */ +#if 1 +/* #ifdef __STDC__ */ +#define ANSIPROT 1 +int mtherr ( char *, int ); +#else +int mtherr(); +#endif + +/* Variable for error reporting. See mtherr.c. */ +extern int merror; |