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- /* 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 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.
- *
- * 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, the symbol UNK is defined.
- *
- * 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.
- *
- * For ANSI C compatibility, define ANSIC equal to 1. Currently
- * this affects only the atan2() function and others that use it.
- */
-
- /*
- Cephes Math Library Release 2.1: January, 1989
- Copyright 1984, 1987, 1989 by Stephen L. Moshier
- Direct inquiries to 30 Frost Street, Cambridge, MA 02140
- */
-
-
- /* 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
-
- typedef struct
- {
- double r;
- double i;
- }cmplx;
-
- /* 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 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:
- /*define UNK 1*/
-
- /* Define 1 for ANSI C atan2() function
- * See atan.c and clog.c.
- */
- #define ANSIC 0
-
-