111
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1 /* Header file to the Fortran front-end and runtime library
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2 Copyright (C) 2007-2017 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it under
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7 the terms of the GNU General Public License as published by the Free
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8 Software Foundation; either version 3, or (at your option) any later
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9 version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with GCC; see the file COPYING3. If not see
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18 <http://www.gnu.org/licenses/>. */
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19
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20
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21 /* Flags to specify which standard/extension contains a feature.
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22 Note that no features were obsoleted nor deleted in F2003.
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23 Please remember to keep those definitions in sync with
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24 gfortran.texi. */
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25 /* For now, use F2015 = GFC_STD_GNU. */
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26 #define GFC_STD_F2015 (1<<5) /* PLACEHOLDER for Fortran 2015. */
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27 #define GFC_STD_F2008_TS (1<<9) /* POST-F2008 technical reports. */
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28 #define GFC_STD_F2008_OBS (1<<8) /* Obsolescent in F2008. */
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29 #define GFC_STD_F2008 (1<<7) /* New in F2008. */
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30 #define GFC_STD_LEGACY (1<<6) /* Backward compatibility. */
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31 #define GFC_STD_GNU (1<<5) /* GNU Fortran extension. */
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32 #define GFC_STD_F2003 (1<<4) /* New in F2003. */
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33 #define GFC_STD_F95 (1<<3) /* New in F95. */
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34 #define GFC_STD_F95_DEL (1<<2) /* Deleted in F95. */
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35 #define GFC_STD_F95_OBS (1<<1) /* Obsolescent in F95. */
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36 #define GFC_STD_F77 (1<<0) /* Included in F77, but not deleted or
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37 obsolescent in later standards. */
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38
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39
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40 /* Bitmasks for the various FPE that can be enabled. These need to be straight integers
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41 e.g., 8 instead of (1<<3), because they will be included in Fortran source. */
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42 #define GFC_FPE_INVALID 1
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43 #define GFC_FPE_DENORMAL 2
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44 #define GFC_FPE_ZERO 4
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45 #define GFC_FPE_OVERFLOW 8
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46 #define GFC_FPE_UNDERFLOW 16
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47 #define GFC_FPE_INEXACT 32
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48
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49 /* Defines for floating-point rounding modes. */
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50 #define GFC_FPE_DOWNWARD 1
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51 #define GFC_FPE_TONEAREST 2
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52 #define GFC_FPE_TOWARDZERO 3
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53 #define GFC_FPE_UPWARD 4
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54
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55 /* Size of the buffer required to store FPU state for any target.
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56 In particular, this has to be larger than fenv_t on all glibc targets.
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57 Currently, the winner is x86_64 with 32 bytes. */
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58 #define GFC_FPE_STATE_BUFFER_SIZE 32
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59
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60 /* Bitmasks for the various runtime checks that can be enabled. */
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61 #define GFC_RTCHECK_BOUNDS (1<<0)
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62 #define GFC_RTCHECK_ARRAY_TEMPS (1<<1)
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63 #define GFC_RTCHECK_RECURSION (1<<2)
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64 #define GFC_RTCHECK_DO (1<<3)
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65 #define GFC_RTCHECK_POINTER (1<<4)
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66 #define GFC_RTCHECK_MEM (1<<5)
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67 #define GFC_RTCHECK_ALL (GFC_RTCHECK_BOUNDS | GFC_RTCHECK_ARRAY_TEMPS \
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68 | GFC_RTCHECK_RECURSION | GFC_RTCHECK_DO \
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69 | GFC_RTCHECK_POINTER | GFC_RTCHECK_MEM)
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70
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71 /* Special unit numbers used to convey certain conditions. Numbers -4
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72 thru -9 available. NEWUNIT values start at -10. */
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73 #define GFC_INTERNAL_UNIT -1 /* KIND=1 Internal Unit. */
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74 #define GFC_INTERNAL_UNIT4 -2 /* KIND=4 Internal Unit. */
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75 #define GFC_INVALID_UNIT -3
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76
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77 /* Possible values for the CONVERT I/O specifier. */
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78 /* Keep in sync with GFC_FLAG_CONVERT_* in gcc/flags.h. */
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79 typedef enum
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80 {
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81 GFC_CONVERT_NONE = -1,
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82 GFC_CONVERT_NATIVE = 0,
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83 GFC_CONVERT_SWAP,
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84 GFC_CONVERT_BIG,
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85 GFC_CONVERT_LITTLE
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86 }
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87 unit_convert;
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88
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89
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90 /* Runtime errors. */
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91 typedef enum
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92 {
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93 LIBERROR_FIRST = -3, /* Marker for the first error. */
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94 LIBERROR_EOR = -2, /* End of record, must be negative. */
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95 LIBERROR_END = -1, /* End of file, must be negative. */
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96 LIBERROR_OK = 0, /* Indicates success, must be zero. */
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97 LIBERROR_OS = 5000, /* OS error, more info in errno. */
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98 LIBERROR_OPTION_CONFLICT,
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99 LIBERROR_BAD_OPTION,
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100 LIBERROR_MISSING_OPTION,
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101 LIBERROR_ALREADY_OPEN,
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102 LIBERROR_BAD_UNIT,
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103 LIBERROR_FORMAT,
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104 LIBERROR_BAD_ACTION,
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105 LIBERROR_ENDFILE,
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106 LIBERROR_BAD_US,
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107 LIBERROR_READ_VALUE,
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108 LIBERROR_READ_OVERFLOW,
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109 LIBERROR_INTERNAL,
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110 LIBERROR_INTERNAL_UNIT,
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111 LIBERROR_ALLOCATION,
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112 LIBERROR_DIRECT_EOR,
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113 LIBERROR_SHORT_RECORD,
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114 LIBERROR_CORRUPT_FILE,
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115 LIBERROR_INQUIRE_INTERNAL_UNIT, /* Must be different from STAT_STOPPED_IMAGE. */
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116 LIBERROR_LAST /* Not a real error, the last error # + 1. */
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117 }
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118 libgfortran_error_codes;
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119
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120 /* Must kept in sync with libgfortran/caf/libcaf.h. */
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121 typedef enum
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122 {
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123 GFC_STAT_UNLOCKED = 0,
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124 GFC_STAT_LOCKED,
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125 GFC_STAT_LOCKED_OTHER_IMAGE,
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126 GFC_STAT_STOPPED_IMAGE = 6000, /* See LIBERROR_INQUIRE_INTERNAL_UNIT above. */
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127 GFC_STAT_FAILED_IMAGE = 6001
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128 }
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129 libgfortran_stat_codes;
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130
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131 typedef enum
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132 {
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133 GFC_CAF_ATOMIC_ADD = 1,
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134 GFC_CAF_ATOMIC_AND,
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135 GFC_CAF_ATOMIC_OR,
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136 GFC_CAF_ATOMIC_XOR
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137 } libcaf_atomic_codes;
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138
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139
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140 /* For CO_REDUCE. */
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141 #define GFC_CAF_BYREF (1<<0)
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142 #define GFC_CAF_HIDDENLEN (1<<1)
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143 #define GFC_CAF_ARG_VALUE (1<<2)
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144 #define GFC_CAF_ARG_DESC (1<<3)
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145
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146
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147 /* Default unit number for preconnected standard input and output. */
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148 #define GFC_STDIN_UNIT_NUMBER 5
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149 #define GFC_STDOUT_UNIT_NUMBER 6
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150 #define GFC_STDERR_UNIT_NUMBER 0
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151
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152
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153 /* FIXME: Increase to 15 for Fortran 2008. Also needs changes to
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154 GFC_DTYPE_RANK_MASK. See PR 36825. */
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155 #define GFC_MAX_DIMENSIONS 7
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156
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157 #define GFC_DTYPE_RANK_MASK 0x07
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158 #define GFC_DTYPE_TYPE_SHIFT 3
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159 #define GFC_DTYPE_TYPE_MASK 0x38
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160 #define GFC_DTYPE_SIZE_SHIFT 6
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161
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162 /* Basic types. BT_VOID is used by ISO C Binding so funcs like c_f_pointer
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163 can take any arg with the pointer attribute as a param. These are also
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164 used in the run-time library for IO. */
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165 typedef enum
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166 { BT_UNKNOWN = 0, BT_INTEGER, BT_LOGICAL, BT_REAL, BT_COMPLEX,
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167 BT_DERIVED, BT_CHARACTER, BT_CLASS, BT_PROCEDURE, BT_HOLLERITH, BT_VOID,
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168 BT_ASSUMED, BT_UNION
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169 }
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170 bt;
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