[86bd7c1f] | 1 | // |
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo |
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| 3 | // |
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| 4 | // The contents of this file are covered under the licence agreement in the |
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| 5 | // file "LICENCE" distributed with Cforall. |
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| 6 | // |
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[356189a] | 7 | // fstream.c -- |
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[86bd7c1f] | 8 | // |
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[90c3b1c] | 9 | // Author : Peter A. Buhr |
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[86bd7c1f] | 10 | // Created On : Wed May 27 17:56:53 2015 |
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[5d125e4] | 11 | // Last Modified By : Peter A. Buhr |
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[4cae032] | 12 | // Last Modified On : Fri Nov 29 06:56:46 2019 |
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| 13 | // Update Count : 355 |
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[86bd7c1f] | 14 | // |
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| 15 | |
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[58b6d1b] | 16 | #include "fstream.hfa" |
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[51b7345] | 17 | |
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[90c3b1c] | 18 | #include <stdio.h> // vfprintf, vfscanf |
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| 19 | #include <stdlib.h> // exit |
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| 20 | #include <stdarg.h> // varargs |
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| 21 | #include <string.h> // strlen |
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| 22 | #include <float.h> // DBL_DIG, LDBL_DIG |
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| 23 | #include <complex.h> // creal, cimag |
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[91c389a] | 24 | #include <assert.h> |
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[8a25be9] | 25 | #include <errno.h> // errno |
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[51b7345] | 26 | |
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[65240bb] | 27 | |
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| 28 | //*********************************** ofstream *********************************** |
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| 29 | |
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| 30 | |
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[53ba273] | 31 | #define IO_MSG "I/O error: " |
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[6ba0659] | 32 | |
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[5cb2b8c] | 33 | void ?{}( ofstream & os, void * file ) { |
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[09687aa] | 34 | os.file = file; |
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[5cb2b8c] | 35 | os.sepDefault = true; |
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| 36 | os.sepOnOff = false; |
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| 37 | os.nlOnOff = true; |
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| 38 | os.prt = false; |
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[0efb269] | 39 | os.sawNL = false; |
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[5cb2b8c] | 40 | sepSet( os, " " ); |
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[09687aa] | 41 | sepSetCur( os, sepGet( os ) ); |
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[5cb2b8c] | 42 | sepSetTuple( os, ", " ); |
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[65240bb] | 43 | } // ?{} |
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[0583064b] | 44 | |
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[9ebd778] | 45 | // private |
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[93c2e0a] | 46 | bool sepPrt( ofstream & os ) { setNL( os, false ); return os.sepOnOff; } |
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[09687aa] | 47 | void sepReset( ofstream & os ) { os.sepOnOff = os.sepDefault; } |
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[93c2e0a] | 48 | void sepReset( ofstream & os, bool reset ) { os.sepDefault = reset; os.sepOnOff = os.sepDefault; } |
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[09687aa] | 49 | const char * sepGetCur( ofstream & os ) { return os.sepCur; } |
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| 50 | void sepSetCur( ofstream & os, const char * sepCur ) { os.sepCur = sepCur; } |
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[93c2e0a] | 51 | bool getNL( ofstream & os ) { return os.sawNL; } |
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| 52 | void setNL( ofstream & os, bool state ) { os.sawNL = state; } |
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[200fcb3] | 53 | bool getANL( ofstream & os ) { return os.nlOnOff; } |
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[5ea5b28] | 54 | bool getPrt( ofstream & os ) { return os.prt; } |
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| 55 | void setPrt( ofstream & os, bool state ) { os.prt = state; } |
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[829c907] | 56 | |
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[9ebd778] | 57 | // public |
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[8da74119] | 58 | void ?{}( ofstream & os ) { os.file = 0; } |
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[829c907] | 59 | |
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[09687aa] | 60 | void ?{}( ofstream & os, const char * name, const char * mode ) { |
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| 61 | open( os, name, mode ); |
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[65240bb] | 62 | } // ?{} |
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| 63 | |
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[8da74119] | 64 | void ?{}( ofstream & os, const char * name ) { |
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| 65 | open( os, name, "w" ); |
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[65240bb] | 66 | } // ?{} |
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[09687aa] | 67 | |
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[4cae032] | 68 | void ^?{}( ofstream & os ) { |
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| 69 | close( os ); |
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| 70 | } // ^?{} |
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| 71 | |
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[09687aa] | 72 | void sepOn( ofstream & os ) { os.sepOnOff = ! getNL( os ); } |
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| 73 | void sepOff( ofstream & os ) { os.sepOnOff = false; } |
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| 74 | |
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[93c2e0a] | 75 | bool sepDisable( ofstream & os ) { |
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| 76 | bool temp = os.sepDefault; |
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[09687aa] | 77 | os.sepDefault = false; |
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[53ba273] | 78 | sepReset( os ); |
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| 79 | return temp; |
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| 80 | } // sepDisable |
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[6152c81] | 81 | |
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[93c2e0a] | 82 | bool sepEnable( ofstream & os ) { |
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| 83 | bool temp = os.sepDefault; |
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[09687aa] | 84 | os.sepDefault = true; |
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| 85 | if ( os.sepOnOff ) sepReset( os ); // start of line ? |
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[53ba273] | 86 | return temp; |
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| 87 | } // sepEnable |
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[90c3b1c] | 88 | |
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[200fcb3] | 89 | void nlOn( ofstream & os ) { os.nlOnOff = true; } |
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| 90 | void nlOff( ofstream & os ) { os.nlOnOff = false; } |
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| 91 | |
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[09687aa] | 92 | const char * sepGet( ofstream & os ) { return os.separator; } |
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| 93 | void sepSet( ofstream & os, const char * s ) { |
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[9ebd778] | 94 | assert( s ); |
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[09687aa] | 95 | strncpy( os.separator, s, sepSize - 1 ); |
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| 96 | os.separator[sepSize - 1] = '\0'; |
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[9ebd778] | 97 | } // sepSet |
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| 98 | |
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[09687aa] | 99 | const char * sepGetTuple( ofstream & os ) { return os.tupleSeparator; } |
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| 100 | void sepSetTuple( ofstream & os, const char * s ) { |
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[9ebd778] | 101 | assert( s ); |
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[09687aa] | 102 | strncpy( os.tupleSeparator, s, sepSize - 1 ); |
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| 103 | os.tupleSeparator[sepSize - 1] = '\0'; |
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[9ebd778] | 104 | } // sepSet |
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| 105 | |
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[65240bb] | 106 | void ends( ofstream & os ) { |
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| 107 | if ( getANL( os ) ) nl( os ); |
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| 108 | else setPrt( os, false ); // turn off |
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| 109 | if ( &os == &exit ) exit( EXIT_FAILURE ); |
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| 110 | if ( &os == &abort ) abort(); |
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| 111 | } // ends |
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| 112 | |
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[09687aa] | 113 | int fail( ofstream & os ) { |
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[8da74119] | 114 | return os.file == 0 || ferror( (FILE *)(os.file) ); |
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[6ba0659] | 115 | } // fail |
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| 116 | |
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[09687aa] | 117 | int flush( ofstream & os ) { |
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| 118 | return fflush( (FILE *)(os.file) ); |
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[6ba0659] | 119 | } // flush |
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| 120 | |
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[09687aa] | 121 | void open( ofstream & os, const char * name, const char * mode ) { |
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[5cb2b8c] | 122 | FILE * file = fopen( name, mode ); |
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[93c2e0a] | 123 | #ifdef __CFA_DEBUG__ |
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| 124 | if ( file == 0 ) { |
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[ff2a33e] | 125 | abort | IO_MSG "open output file \"" | name | "\"" | nl | strerror( errno ); |
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[93c2e0a] | 126 | } // if |
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| 127 | #endif // __CFA_DEBUG__ |
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[5cb2b8c] | 128 | (os){ file }; |
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[6ba0659] | 129 | } // open |
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| 130 | |
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[8da74119] | 131 | void open( ofstream & os, const char * name ) { |
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| 132 | open( os, name, "w" ); |
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| 133 | } // open |
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| 134 | |
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[09687aa] | 135 | void close( ofstream & os ) { |
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| 136 | if ( (FILE *)(os.file) == stdout || (FILE *)(os.file) == stderr ) return; |
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[6ba0659] | 137 | |
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[09687aa] | 138 | if ( fclose( (FILE *)(os.file) ) == EOF ) { |
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[ff2a33e] | 139 | abort | IO_MSG "close output" | nl | strerror( errno ); |
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[356189a] | 140 | } // if |
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[6ba0659] | 141 | } // close |
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| 142 | |
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[91d766d] | 143 | ofstream & write( ofstream & os, const char * data, size_t size ) { |
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[6ba0659] | 144 | if ( fail( os ) ) { |
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[ff2a33e] | 145 | abort | IO_MSG "attempt write I/O on failed stream"; |
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[6ba0659] | 146 | } // if |
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| 147 | |
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[09687aa] | 148 | if ( fwrite( data, 1, size, (FILE *)(os.file) ) != size ) { |
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[ff2a33e] | 149 | abort | IO_MSG "write" | nl | strerror( errno ); |
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[839ccbb] | 150 | } // if |
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[86bd7c1f] | 151 | return os; |
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[839ccbb] | 152 | } // write |
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[51b7345] | 153 | |
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[09687aa] | 154 | int fmt( ofstream & os, const char format[], ... ) { |
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[5d125e4] | 155 | va_list args; |
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[829c907] | 156 | va_start( args, format ); |
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[09687aa] | 157 | int len = vfprintf( (FILE *)(os.file), format, args ); |
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[90c3b1c] | 158 | if ( len == EOF ) { |
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[09687aa] | 159 | if ( ferror( (FILE *)(os.file) ) ) { |
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[ff2a33e] | 160 | abort | IO_MSG "invalid write"; |
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[90c3b1c] | 161 | } // if |
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| 162 | } // if |
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[5d125e4] | 163 | va_end( args ); |
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[b72bad4f] | 164 | |
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[9d362a0] | 165 | setPrt( os, true ); // called in output cascade |
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[b72bad4f] | 166 | sepReset( os ); // reset separator |
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[90c3b1c] | 167 | return len; |
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[829c907] | 168 | } // fmt |
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| 169 | |
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[fd8f88f] | 170 | static ofstream soutFile = { (FILE *)stdout }; |
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[a87d40b] | 171 | ofstream & sout = soutFile, & stdout = soutFile; |
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[fd8f88f] | 172 | static ofstream serrFile = { (FILE *)stderr }; |
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[a87d40b] | 173 | ofstream & serr = serrFile, & stderr = serrFile; |
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[51b7345] | 174 | |
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[fd8f88f] | 175 | static ofstream exitFile = { (FILE *)stdout }; |
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[65240bb] | 176 | ofstream & exit = exitFile; |
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[fd8f88f] | 177 | static ofstream abortFile = { (FILE *)stderr }; |
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[65240bb] | 178 | ofstream & abort = abortFile; |
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[5cb2b8c] | 179 | |
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[90c3b1c] | 180 | |
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[65240bb] | 181 | //*********************************** ifstream *********************************** |
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| 182 | |
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[51b7345] | 183 | |
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[09687aa] | 184 | // private |
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| 185 | void ?{}( ifstream & is, void * file ) { |
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| 186 | is.file = file; |
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[0efb269] | 187 | is.nlOnOff = false; |
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[65240bb] | 188 | } // ?{} |
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[09687aa] | 189 | |
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| 190 | // public |
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[8da74119] | 191 | void ?{}( ifstream & is ) { is.file = 0; } |
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[51b7345] | 192 | |
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[8da74119] | 193 | void ?{}( ifstream & is, const char * name, const char * mode ) { |
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| 194 | open( is, name, mode ); |
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[65240bb] | 195 | } // ?{} |
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| 196 | |
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[09687aa] | 197 | void ?{}( ifstream & is, const char * name ) { |
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[8da74119] | 198 | open( is, name, "r" ); |
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[65240bb] | 199 | } // ?{} |
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[09687aa] | 200 | |
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[4cae032] | 201 | void ^?{}( ifstream & is ) { |
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| 202 | close( is ); |
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| 203 | } // ^?{} |
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| 204 | |
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[0efb269] | 205 | void nlOn( ifstream & os ) { os.nlOnOff = true; } |
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| 206 | void nlOff( ifstream & os ) { os.nlOnOff = false; } |
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| 207 | bool getANL( ifstream & os ) { return os.nlOnOff; } |
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| 208 | |
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[09687aa] | 209 | int fail( ifstream & is ) { |
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[8da74119] | 210 | return is.file == 0 || ferror( (FILE *)(is.file) ); |
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[6ba0659] | 211 | } // fail |
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| 212 | |
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[09687aa] | 213 | int eof( ifstream & is ) { |
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| 214 | return feof( (FILE *)(is.file) ); |
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[6ba0659] | 215 | } // eof |
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| 216 | |
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[8da74119] | 217 | void open( ifstream & is, const char * name, const char * mode ) { |
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[8a25be9] | 218 | FILE * file = fopen( name, mode ); |
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[93c2e0a] | 219 | #ifdef __CFA_DEBUG__ |
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| 220 | if ( file == 0 ) { |
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[ff2a33e] | 221 | abort | IO_MSG "open input file \"" | name | "\"" | nl | strerror( errno ); |
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[93c2e0a] | 222 | } // if |
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| 223 | #endif // __CFA_DEBUG__ |
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[09687aa] | 224 | is.file = file; |
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[90c3b1c] | 225 | } // open |
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[6ba0659] | 226 | |
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[8da74119] | 227 | void open( ifstream & is, const char * name ) { |
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| 228 | open( is, name, "r" ); |
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| 229 | } // open |
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| 230 | |
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[09687aa] | 231 | void close( ifstream & is ) { |
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| 232 | if ( (FILE *)(is.file) == stdin ) return; |
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[90c3b1c] | 233 | |
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[09687aa] | 234 | if ( fclose( (FILE *)(is.file) ) == EOF ) { |
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[ff2a33e] | 235 | abort | IO_MSG "close input" | nl | strerror( errno ); |
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[356189a] | 236 | } // if |
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[90c3b1c] | 237 | } // close |
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| 238 | |
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[91d766d] | 239 | ifstream & read( ifstream & is, char * data, size_t size ) { |
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[6ba0659] | 240 | if ( fail( is ) ) { |
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[ff2a33e] | 241 | abort | IO_MSG "attempt read I/O on failed stream"; |
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[6ba0659] | 242 | } // if |
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| 243 | |
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[09687aa] | 244 | if ( fread( data, size, 1, (FILE *)(is.file) ) == 0 ) { |
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[ff2a33e] | 245 | abort | IO_MSG "read" | nl | strerror( errno ); |
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[6ba0659] | 246 | } // if |
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[86bd7c1f] | 247 | return is; |
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[6ba0659] | 248 | } // read |
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[356189a] | 249 | |
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[09687aa] | 250 | ifstream &ungetc( ifstream & is, char c ) { |
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[6ba0659] | 251 | if ( fail( is ) ) { |
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[ff2a33e] | 252 | abort | IO_MSG "attempt ungetc I/O on failed stream"; |
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[6ba0659] | 253 | } // if |
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[51b7345] | 254 | |
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[09687aa] | 255 | if ( ungetc( c, (FILE *)(is.file) ) == EOF ) { |
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[ff2a33e] | 256 | abort | IO_MSG "ungetc" | nl | strerror( errno ); |
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[6ba0659] | 257 | } // if |
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| 258 | return is; |
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| 259 | } // ungetc |
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[51b7345] | 260 | |
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[09687aa] | 261 | int fmt( ifstream & is, const char format[], ... ) { |
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[5d125e4] | 262 | va_list args; |
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[51b7345] | 263 | |
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[829c907] | 264 | va_start( args, format ); |
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[09687aa] | 265 | int len = vfscanf( (FILE *)(is.file), format, args ); |
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[90c3b1c] | 266 | if ( len == EOF ) { |
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[09687aa] | 267 | if ( ferror( (FILE *)(is.file) ) ) { |
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[ff2a33e] | 268 | abort | IO_MSG "invalid read"; |
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[90c3b1c] | 269 | } // if |
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| 270 | } // if |
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[5d125e4] | 271 | va_end( args ); |
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[90c3b1c] | 272 | return len; |
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[829c907] | 273 | } // fmt |
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[51b7345] | 274 | |
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[fd8f88f] | 275 | static ifstream sinFile = { (FILE *)stdin }; |
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[a87d40b] | 276 | ifstream & sin = sinFile, & stdin = sinFile; |
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[86bd7c1f] | 277 | |
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| 278 | // Local Variables: // |
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| 279 | // tab-width: 4 // |
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| 280 | // End: // |
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