117 lines
3.6 KiB
C
117 lines
3.6 KiB
C
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
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#ifndef __dj_include_float_h_
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#define __dj_include_float_h_
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern float __dj_float_epsilon;
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extern float __dj_float_max;
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extern float __dj_float_min;
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#define FLT_DIG 6
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#define FLT_EPSILON __dj_float_epsilon
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#define FLT_MANT_DIG 24
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#define FLT_MAX __dj_float_max
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#define FLT_MAX_10_EXP 38
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#define FLT_MAX_EXP 128
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#define FLT_MIN __dj_float_min
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#define FLT_MIN_10_EXP (-37)
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#define FLT_MIN_EXP (-125)
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#define FLT_RADIX 2
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#define FLT_ROUNDS 1
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extern double __dj_double_epsilon;
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extern double __dj_double_max;
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extern double __dj_double_min;
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#define DBL_DIG 15
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#define DBL_EPSILON __dj_double_epsilon
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#define DBL_MANT_DIG 53
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#define DBL_MAX __dj_double_max
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#define DBL_MAX_10_EXP 308
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#define DBL_MAX_EXP 1024
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#define DBL_MIN __dj_double_min
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#define DBL_MIN_10_EXP (-307)
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#define DBL_MIN_EXP (-1021)
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extern long double __dj_long_double_epsilon;
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extern long double __dj_long_double_max;
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extern long double __dj_long_double_min;
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#define LDBL_DIG 18
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#define LDBL_EPSILON __dj_long_double_epsilon
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#define LDBL_MANT_DIG 64
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#define LDBL_MAX __dj_long_double_max
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#define LDBL_MAX_10_EXP 4932
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#define LDBL_MAX_EXP 16384
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#define LDBL_MIN __dj_long_double_min
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#define LDBL_MIN_10_EXP (-4931)
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#define LDBL_MIN_EXP (-16381)
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#ifndef __dj_ENFORCE_ANSI_FREESTANDING
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#ifndef __STRICT_ANSI__
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#ifndef _POSIX_SOURCE
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/* These indicate the results of the last operation */
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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 /* Division by zero */
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#define SW_OVERFLOW 0x0008 /* Overflow */
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#define SW_UNDERFLOW 0x0010 /* Underflow (computational) */
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#define SW_INEXACT 0x0020 /* Precision (computational) */
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#define SW_STACKFAULT 0x0040 /* Stack Fault (over/under flow) */
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#define SW_ERRORSUMMARY 0x0080 /* Error summary */
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#define SW_COND 0x4700 /* Condition Code */
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#define SW_C0 0x0100 /* Condition 0 bit */
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#define SW_C1 0x0200 /* Condition 1 bit (also 0=stack underflow, 1=stack overflow) */
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#define SW_C2 0x0400 /* Condition 2 bit */
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#define SW_C3 0x4000 /* Condition 3 bit */
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#define SW_TOP 0x3800 /* Top of stack */
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#define SW_TOP_SHIFT 11 /* Shift to move TOS to LSB */
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#define SW_BUSY 0x8000 /* FPU busy */
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#define MCW_EM 0x003f /* Exception masks (0=fault, 1=handle) */
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#define EM_INVALID 0x0001 /* Invalid operation */
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#define EM_DENORMAL 0x0002 /* Denormalized operand */
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#define EM_ZERODIVIDE 0x0004 /* Division by zero */
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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 /* Precision */
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#define MCW_PC 0x0300 /* precision control */
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#define PC_24 0x0000 /* 24 bits (single precision) */
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#define PC_53 0x0200 /* 53 bits (double precision) */
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#define PC_64 0x0300 /* 64 bits (extended precision) */
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#define MCW_RC 0x0c00 /* Rounding control */
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#define RC_NEAR 0x0000 /* Round to nearest or even */
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#define RC_DOWN 0x0400 /* Round towards -Inf */
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#define RC_UP 0x0800 /* Round towards +Inf */
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#define RC_CHOP 0x0c00 /* Truncate towards zero */
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#define MCW_IC 0x1000 /* obsolete; i486 is always affine */
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#define IC_AFFINE 0x1000 /* -Inf < +Inf */
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#define IC_PROJECTIVE 0x0000 /* -Inf == +Inf */
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unsigned int _clear87(void);
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unsigned int _control87(unsigned int newcw, unsigned int mask);
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void _fpreset(void);
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unsigned int _status87(void);
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#endif /* !_POSIX_SOURCE */
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#endif /* !__STRICT_ANSI__ */
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#endif /* !__dj_ENFORCE_ANSI_FREESTANDING */
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#ifndef __dj_ENFORCE_FUNCTION_CALLS
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#endif /* !__dj_ENFORCE_FUNCTION_CALLS */
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#ifdef __cplusplus
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}
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#endif
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#endif /* !__dj_include_float_h_ */
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