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OS/2 Shareware BBS: 10 Tools
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cset21v1.zip
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IBMCPP
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INCLUDE
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FLOAT.H
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1993-09-17
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7KB
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184 lines
#pragma info( none )
#ifndef __CHKHDR__
#pragma info( none )
#endif
#pragma info( restore )
#ifndef __float_h
#define __float_h
#ifdef __cplusplus
extern "C" {
#endif
/********************************************************************/
/* <float.h> header file */
/* */
/* Licensed Materials - Property of IBM */
/* */
/* IBM C/C++ Tools Version 2.01 */
/* Copyright (C) International Business Machines Corp., 1991,1993 */
/* All rights reserved */
/* */
/* US Government Users Restricted Rights - */
/* Use, duplication, or disclosure restricted */
/* by GSA ADP Schedule Contract with IBM Corp. */
/* */
/********************************************************************/
#define FLT_ROUNDS 1 /* 0, 2 and 3 also available on 80387 */
#define FLT_RADIX 2
#define FLT_MANT_DIG 24
#define DBL_MANT_DIG 53
#define LDBL_MANT_DIG 64
#define FLT_DIG 6
#define DBL_DIG 15
#define LDBL_DIG 18
#define FLT_MIN_EXP (-125)
#define DBL_MIN_EXP (-1021)
#define LDBL_MIN_EXP (-16381)
#define FLT_MIN_10_EXP (-37)
#define DBL_MIN_10_EXP (-307)
#define LDBL_MIN_10_EXP (-4931)
#define FLT_MAX_EXP 128
#define DBL_MAX_EXP 1024
#define LDBL_MAX_EXP 16384
#define FLT_MAX_10_EXP 38
#define DBL_MAX_10_EXP 308
#define LDBL_MAX_10_EXP 4932
#define FLT_MAX 3.402823466e+38F
#define DBL_MAX 1.7976931348623158e+308
#define LDBL_MAX 1.18973149535723176502e+4932L
#define FLT_EPSILON 1.192092896e-07F
#define DBL_EPSILON 2.2204460492503131e-016
#define LDBL_EPSILON 1.08420217248550443401e-19L
#define FLT_MIN 1.175494351e-38F
#define DBL_MIN 2.2250738585072014e-308
#define LDBL_MIN 3.36210314311209350626e-4932L
#if defined(__EXTENDED__)
/* 80387 math control information */
/* User Control Word Mask and bit definitions. */
/* These definitions match the 80387 */
#define MCW_EM 0x003f /* interrupt Exception Masks */
#define EM_INVALID 0x0001 /* invalid */
#define EM_DENORMAL 0x0002 /* denormal */
#define EM_ZERODIVIDE 0x0004 /* zero divide */
#define EM_OVERFLOW 0x0008 /* overflow */
#define EM_UNDERFLOW 0x0010 /* underflow */
#define EM_INEXACT 0x0020 /* inexact (precision) */
#define MCW_IC 0x1000 /* Infinity Control */
#define IC_AFFINE 0x1000 /* affine */
#define IC_PROJECTIVE 0x0000 /* projective */
#define MCW_RC 0x0c00 /* Rounding Control */
#define RC_CHOP 0x0c00 /* chop */
#define RC_UP 0x0800 /* up */
#define RC_DOWN 0x0400 /* down */
#define RC_NEAR 0x0000 /* near */
#define MCW_PC 0x0300 /* Precision Control */
#define PC_24 0x0000 /* 24 bits */
#define PC_53 0x0200 /* 53 bits */
#define PC_64 0x0300 /* 64 bits */
/* initial Control Word value */
#define CW_DEFAULT ( RC_NEAR + PC_64 + EM_DENORMAL + EM_INEXACT )
/* user Status Word bit definitions */
#define SW_INVALID 0x0001 /* invalid */
#define SW_DENORMAL 0x0002 /* denormal */
#define SW_ZERODIVIDE 0x0004 /* zero divide */
#define SW_OVERFLOW 0x0008 /* overflow */
#define SW_UNDERFLOW 0x0010 /* underflow */
#define SW_INEXACT 0x0020 /* inexact (precision) */
#define SW_STACKFAULT 0x0040 /* stack fault (SW_INVALID also set) */
/* stack problems (SW_INVALID and SW_STACKFAULT both set) */
#define SW_STACKOVERFLOW 0x0200 /* stack overflow */
/* bit is off for stack underflow */
/* Floating point error signals and return codes */
#define FPE_INTDIV0 0x91 /* integer division by 0 */
#define FPE_INT_OFLOW 0x92 /* integer overflow */
#define FPE_BOUND 0x93 /* bounds failure */
#define FPE_INVALID 0x81
#define FPE_DENORMAL 0x82
#define FPE_ZERODIVIDE 0x83
#define FPE_OVERFLOW 0x84
#define FPE_UNDERFLOW 0x85
#define FPE_INEXACT 0x86
#define FPE_STACKOVERFLOW 0x8a
#define FPE_STACKUNDERFLOW 0x8b
#define FPE_EXPLICITGEN 0x8c /* raise( SIGFPE ); */
/* function prototypes */
unsigned int (_Optlink _clear87)( void );
unsigned int (_Optlink _control87)( unsigned int, unsigned int );
unsigned int (_Optlink _status87)( void );
void _Optlink _fpreset( void );
unsigned int _Builtin __clear87( void );
unsigned int _Builtin __control87( unsigned int, unsigned int );
unsigned int _Builtin __status87( void );
#define _clear87( ) __clear87( )
#define _control87( x, y ) __control87( (x), (y) )
#define _status87( ) __status87( )
extern const float _fposinfi;
#define _INFF _fposinfi
#define _INFINITYF _fposinfi
extern const double _infinity;
#define _INF _infinity
#define _INFINITY _infinity
extern const long double _ldposinfi;
#define _INFL _ldposinfi
#define _INFINITYL _ldposinfi
extern const float _fposqnan;
extern const double _dposqnan;
extern const long double _ldposqnan;
#define _NANF _fposqnan
#define _NAN _dposqnan
#define _NANL _ldposqnan
#endif
#ifdef __cplusplus
}
#endif
#endif
#pragma info( none )
#ifndef __CHKHDR__
#pragma info( restore )
#endif
#pragma info( restore )