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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1882 | clevermous | 1 | /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */ |
| 2 | #ifndef __dj_include_float_h_ |
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| 3 | #define __dj_include_float_h_ |
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| 4 | |||
| 5 | #ifdef __cplusplus |
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| 6 | extern "C" { |
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| 7 | #endif |
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| 8 | |||
| 9 | extern float __dj_float_epsilon; |
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| 10 | extern float __dj_float_max; |
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| 11 | extern float __dj_float_min; |
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| 12 | |||
| 13 | #define FLT_DIG 6 |
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| 14 | #define FLT_EPSILON __dj_float_epsilon |
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| 15 | #define FLT_MANT_DIG 24 |
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| 16 | #define FLT_MAX __dj_float_max |
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| 17 | #define FLT_MAX_10_EXP 38 |
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| 18 | #define FLT_MAX_EXP 128 |
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| 19 | #define FLT_MIN __dj_float_min |
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| 20 | #define FLT_MIN_10_EXP (-37) |
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| 21 | #define FLT_MIN_EXP (-125) |
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| 22 | #define FLT_RADIX 2 |
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| 23 | #define FLT_ROUNDS 1 |
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| 24 | |||
| 25 | extern double __dj_double_epsilon; |
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| 26 | extern double __dj_double_max; |
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| 27 | extern double __dj_double_min; |
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| 28 | |||
| 29 | #define DBL_DIG 15 |
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| 30 | #define DBL_EPSILON __dj_double_epsilon |
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| 31 | #define DBL_MANT_DIG 53 |
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| 32 | #define DBL_MAX __dj_double_max |
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| 33 | #define DBL_MAX_10_EXP 308 |
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| 34 | #define DBL_MAX_EXP 1024 |
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| 35 | #define DBL_MIN __dj_double_min |
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| 36 | #define DBL_MIN_10_EXP (-307) |
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| 37 | #define DBL_MIN_EXP (-1021) |
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| 38 | |||
| 39 | extern long double __dj_long_double_epsilon; |
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| 40 | extern long double __dj_long_double_max; |
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| 41 | extern long double __dj_long_double_min; |
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| 42 | |||
| 43 | #define LDBL_DIG 18 |
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| 44 | #define LDBL_EPSILON __dj_long_double_epsilon |
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| 45 | #define LDBL_MANT_DIG 64 |
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| 46 | #define LDBL_MAX __dj_long_double_max |
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| 47 | #define LDBL_MAX_10_EXP 4932 |
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| 48 | #define LDBL_MAX_EXP 16384 |
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| 49 | #define LDBL_MIN __dj_long_double_min |
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| 50 | #define LDBL_MIN_10_EXP (-4931) |
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| 51 | #define LDBL_MIN_EXP (-16381) |
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| 52 | |||
| 53 | #ifndef __dj_ENFORCE_ANSI_FREESTANDING |
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| 54 | |||
| 55 | #ifndef __STRICT_ANSI__ |
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| 56 | |||
| 57 | #ifndef _POSIX_SOURCE |
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| 58 | |||
| 59 | /* These indicate the results of the last operation */ |
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| 60 | #define SW_INVALID 0x0001 /* Invalid operation */ |
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| 61 | #define SW_DENORMAL 0x0002 /* Denormalized operand */ |
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| 62 | #define SW_ZERODIVIDE 0x0004 /* Division by zero */ |
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| 63 | #define SW_OVERFLOW 0x0008 /* Overflow */ |
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| 64 | #define SW_UNDERFLOW 0x0010 /* Underflow (computational) */ |
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| 65 | #define SW_INEXACT 0x0020 /* Precision (computational) */ |
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| 66 | #define SW_STACKFAULT 0x0040 /* Stack Fault (over/under flow) */ |
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| 67 | #define SW_ERRORSUMMARY 0x0080 /* Error summary */ |
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| 68 | #define SW_COND 0x4700 /* Condition Code */ |
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| 69 | #define SW_C0 0x0100 /* Condition 0 bit */ |
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| 70 | #define SW_C1 0x0200 /* Condition 1 bit (also 0=stack underflow, 1=stack overflow) */ |
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| 71 | #define SW_C2 0x0400 /* Condition 2 bit */ |
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| 72 | #define SW_C3 0x4000 /* Condition 3 bit */ |
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| 73 | #define SW_TOP 0x3800 /* Top of stack */ |
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| 74 | #define SW_TOP_SHIFT 11 /* Shift to move TOS to LSB */ |
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| 75 | #define SW_BUSY 0x8000 /* FPU busy */ |
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| 76 | |||
| 77 | #define MCW_EM 0x003f /* Exception masks (0=fault, 1=handle) */ |
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| 78 | #define EM_INVALID 0x0001 /* Invalid operation */ |
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| 79 | #define EM_DENORMAL 0x0002 /* Denormalized operand */ |
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| 80 | #define EM_ZERODIVIDE 0x0004 /* Division by zero */ |
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| 81 | #define EM_OVERFLOW 0x0008 /* Overflow */ |
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| 82 | #define EM_UNDERFLOW 0x0010 /* Underflow */ |
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| 83 | #define EM_INEXACT 0x0020 /* Precision */ |
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| 84 | |||
| 85 | #define MCW_PC 0x0300 /* precision control */ |
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| 86 | #define PC_24 0x0000 /* 24 bits (single precision) */ |
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| 87 | #define PC_53 0x0200 /* 53 bits (double precision) */ |
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| 88 | #define PC_64 0x0300 /* 64 bits (extended precision) */ |
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| 89 | |||
| 90 | #define MCW_RC 0x0c00 /* Rounding control */ |
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| 91 | #define RC_NEAR 0x0000 /* Round to nearest or even */ |
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| 92 | #define RC_DOWN 0x0400 /* Round towards -Inf */ |
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| 93 | #define RC_UP 0x0800 /* Round towards +Inf */ |
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| 94 | #define RC_CHOP 0x0c00 /* Truncate towards zero */ |
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| 95 | |||
| 96 | #define MCW_IC 0x1000 /* obsolete; i486 is always affine */ |
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| 97 | #define IC_AFFINE 0x1000 /* -Inf < +Inf */ |
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| 98 | #define IC_PROJECTIVE 0x0000 /* -Inf == +Inf */ |
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| 99 | |||
| 100 | unsigned int _clear87(void); |
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| 101 | unsigned int _control87(unsigned int newcw, unsigned int mask); |
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| 102 | void _fpreset(void); |
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| 103 | unsigned int _status87(void); |
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| 104 | |||
| 105 | #endif /* !_POSIX_SOURCE */ |
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| 106 | #endif /* !__STRICT_ANSI__ */ |
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| 107 | #endif /* !__dj_ENFORCE_ANSI_FREESTANDING */ |
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| 108 | |||
| 109 | #ifndef __dj_ENFORCE_FUNCTION_CALLS |
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| 110 | #endif /* !__dj_ENFORCE_FUNCTION_CALLS */ |
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| 111 | |||
| 112 | #ifdef __cplusplus |
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| 113 | } |
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| 114 | #endif |
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| 115 | |||
| 116 | #endif /* !__dj_include_float_h_ */ |