/*							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, 1995Copyright 1984, 1987, 1989, 1995 by Stephen L. Moshier*//* 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: *//* #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. */#define BIGENDIAN 0/* 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. */#ifdef __STDC__#define ANSIPROT#include "protos.h"#elseint mtherr();#endif/* Variable for error reporting.  See mtherr.c.  */extern int merror;