/* 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 */ #ifndef CEPHES_MCONF_H #define CEPHES_MCONF_H #include <math.h> #ifdef _WIN32 # include "winconfig.h" #else # include "config.h" #endif /* Name of package */ #define PROB_PACKAGE "cephes" /* Version number of package */ #define VERSION "2.7" /* math error conditions */ enum { CEPHES_DOMAIN = 1, /* argument domain error */ CEPHES_SING, /* argument singularity */ CEPHES_OVERFLOW, /* overflow range error */ CEPHES_UNDERFLOW, /* underflow range error */ CEPHES_TLOSS, /* total loss of precision */ CEPHES_PLOSS, /* partial loss of precision */ CEPHES_UNKNOWN /* unspecified error */ }; /* complex number */ typedef struct { double r; double i; } cmplx; #define CMPLX #ifdef HAVE_LONG_DOUBLE /* Long double complex number */ typedef struct { long double r; long double i; } cmplxl; #endif /* Type of computer arithmetic */ /* 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 #ifndef isnan # define isnan(x) ((x) != (x)) #endif #ifndef isfinite # define isfinite(x) (!isnan(x) && !isinf(x)) #endif /* Define to support tiny denormal numbers, else undefine. */ #undef DENORMAL /* Define to distinguish between -0.0 and +0.0 */ #define MINUSZERO /* Mechanism for error reporting. See mtherr.c. */ int mtherr (char *, int); int mtherr_with_arg (char *, int, double); /* includes shared private functions */ #include "cephes.h" #endif /* CEPHES_MCONF_H */

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