69 lines
2.1 KiB
C++
69 lines
2.1 KiB
C++
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/* float.h
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Defines implementation specific macros for dealing with
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floating point.
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Copyright (c) Borland International 1987
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All Rights Reserved.
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*/
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#if __STDC__
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#define _Cdecl
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#else
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#define _Cdecl cdecl
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#endif
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#define FLT_RADIX 2
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#define FLT_ROUNDS 1
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#define FLT_GUARD 1
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#define FLT_NORMALIZE 1
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#define DBL_MAX_EXP +308
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#define FLT_MAX_EXP +38
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#define LDBL_MAX_EXP +308
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#define DBL_MIN_EXP -308
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#define FLT_MIN_EXP -38
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#define LDBL_MIN_EXP -308
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#define DBL_DIG 14
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#define FLT_DIG 6
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#define LDBL_DIG 14
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unsigned int _Cdecl _control87(unsigned int new, unsigned int mask);
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unsigned int _Cdecl _clear87(void);
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void _Cdecl _fpreset(void);
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unsigned int _Cdecl _status87(void);
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/* 8087/80287 Status Word format */
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#define SW_INVALID 0x0001 /* Invalid operation */
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#define SW_DENORMAL 0x0002 /* Denormalized operand */
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#define SW_ZERODIVIDE 0x0004 /* Zero divide */
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#define SW_OVERFLOW 0x0008 /* Overflow */
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#define SW_UNDERFLOW 0x0010 /* Underflow */
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#define SW_INEXACT 0x0020 /* Precision (Inexact result) */
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/* 8087/80287 Control Word format */
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#define MCW_EM 0x003f /* interrupt Exception Masks */
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#define EM_INVALID 0x0001 /* invalid */
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#define EM_DENORMAL 0x0002 /* denormal */
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#define EM_ZERODIVIDE 0x0004 /* zero divide */
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#define EM_OVERFLOW 0x0008 /* overflow */
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#define EM_UNDERFLOW 0x0010 /* underflow */
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#define EM_INEXACT 0x0020 /* inexact (precision) */
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#define MCW_IC 0x1000 /* Infinity Control */
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#define IC_AFFINE 0x1000 /* affine */
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#define IC_PROJECTIVE 0x0000 /* projective */
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#define MCW_RC 0x0c00 /* Rounding Control */
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#define RC_CHOP 0x0c00 /* chop */
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#define RC_UP 0x0800 /* up */
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#define RC_DOWN 0x0400 /* down */
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#define RC_NEAR 0x0000 /* near */
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#define MCW_PC 0x0300 /* Precision Control */
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#define PC_24 0x0000 /* 24 bits */
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#define PC_53 0x0200 /* 53 bits */
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#define PC_64 0x0300 /* 64 bits */
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#define CW_DEFAULT (RC_NEAR+PC_64+EM_DENORMAL+EM_UNDERFLOW+EM_INEXACT)
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