Sweden-Number/include/msvcrt/float.h

94 lines
2.7 KiB
C

/*
* Floating point arithmetic.
*
* Derived from the mingw header written by Colin Peters.
* Modified for Wine use by Hans Leidekker.
* This file is in the public domain.
*/
#ifndef __WINE_FLOAT_H
#define __WINE_FLOAT_H
#ifndef __WINE_USE_MSVCRT
#define __WINE_USE_MSVCRT
#endif
#ifndef MSVCRT
# ifdef USE_MSVCRT_PREFIX
# define MSVCRT(x) MSVCRT_##x
# else
# define MSVCRT(x) x
# endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* _controlfp masks and bitflags - x86 only so far */
#ifdef __i386__
/* Control word masks for unMask */
#define _MCW_EM 0x0008001F /* Error masks */
#define _MCW_IC 0x00040000 /* Infinity */
#define _MCW_RC 0x00000300 /* Rounding */
#define _MCW_PC 0x00030000 /* Precision */
/* Control word values for unNew (use with related unMask above) */
#define _EM_INVALID 0x00000010
#define _EM_DENORMAL 0x00080000
#define _EM_ZERODIVIDE 0x00000008
#define _EM_OVERFLOW 0x00000004
#define _EM_UNDERFLOW 0x00000002
#define _EM_INEXACT 0x00000001
#define _IC_AFFINE 0x00040000
#define _IC_PROJECTIVE 0x00000000
#define _RC_CHOP 0x00000300
#define _RC_UP 0x00000200
#define _RC_DOWN 0x00000100
#define _RC_NEAR 0x00000000
#define _PC_24 0x00020000
#define _PC_53 0x00010000
#define _PC_64 0x00000000
#endif
/* _statusfp bit flags */
#define _SW_INEXACT 0x00000001 /* inexact (precision) */
#define _SW_UNDERFLOW 0x00000002 /* underflow */
#define _SW_OVERFLOW 0x00000004 /* overflow */
#define _SW_ZERODIVIDE 0x00000008 /* zero divide */
#define _SW_INVALID 0x00000010 /* invalid */
#define _SW_UNEMULATED 0x00000040 /* unemulated instruction */
#define _SW_SQRTNEG 0x00000080 /* square root of a neg number */
#define _SW_STACKOVERFLOW 0x00000200 /* FP stack overflow */
#define _SW_STACKUNDERFLOW 0x00000400 /* FP stack underflow */
#define _SW_DENORMAL 0x00080000 /* denormal status bit */
/* fpclass constants */
#define _FPCLASS_SNAN 0x0001 /* Signaling "Not a Number" */
#define _FPCLASS_QNAN 0x0002 /* Quiet "Not a Number" */
#define _FPCLASS_NINF 0x0004 /* Negative Infinity */
#define _FPCLASS_NN 0x0008 /* Negative Normal */
#define _FPCLASS_ND 0x0010 /* Negative Denormal */
#define _FPCLASS_NZ 0x0020 /* Negative Zero */
#define _FPCLASS_PZ 0x0040 /* Positive Zero */
#define _FPCLASS_PD 0x0080 /* Positive Denormal */
#define _FPCLASS_PN 0x0100 /* Positive Normal */
#define _FPCLASS_PINF 0x0200 /* Positive Infinity */
double _copysign (double, double);
double _chgsign (double);
double _scalb(double, long);
double _logb(double);
double _nextafter(double, double);
int _finite(double);
int _isnan(double);
int _fpclass(double);
#ifdef __cplusplus
}
#endif
#endif /* __WINE_FLOAT_H */