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Rev | Author | Line No. | Line |
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4680 | right-hear | 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_ */> |