[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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[8a25be9] | 12 | // Last Modified On : Thu Mar 28 17:39:53 2019 |
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| 13 | // Update Count : 307 |
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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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[53ba273] | 27 | #define IO_MSG "I/O error: " |
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[6ba0659] | 28 | |
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[5ea5b28] | 29 | void ?{}( ofstream & os, void * file, bool sepDefault, bool sepOnOff, bool nlOnOff, bool prt, const char * separator, const char * tupleSeparator ) { |
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[09687aa] | 30 | os.file = file; |
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| 31 | os.sepDefault = sepDefault; |
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| 32 | os.sepOnOff = sepOnOff; |
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[200fcb3] | 33 | os.nlOnOff = nlOnOff; |
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[5ea5b28] | 34 | os.prt = prt; |
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[09687aa] | 35 | sepSet( os, separator ); |
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| 36 | sepSetCur( os, sepGet( os ) ); |
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| 37 | sepSetTuple( os, tupleSeparator ); |
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[0583064b] | 38 | } |
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| 39 | |
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[9ebd778] | 40 | // private |
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[93c2e0a] | 41 | bool sepPrt( ofstream & os ) { setNL( os, false ); return os.sepOnOff; } |
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[09687aa] | 42 | void sepReset( ofstream & os ) { os.sepOnOff = os.sepDefault; } |
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[93c2e0a] | 43 | void sepReset( ofstream & os, bool reset ) { os.sepDefault = reset; os.sepOnOff = os.sepDefault; } |
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[09687aa] | 44 | const char * sepGetCur( ofstream & os ) { return os.sepCur; } |
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| 45 | void sepSetCur( ofstream & os, const char * sepCur ) { os.sepCur = sepCur; } |
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[93c2e0a] | 46 | bool getNL( ofstream & os ) { return os.sawNL; } |
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| 47 | void setNL( ofstream & os, bool state ) { os.sawNL = state; } |
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[200fcb3] | 48 | bool getANL( ofstream & os ) { return os.nlOnOff; } |
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[5ea5b28] | 49 | bool getPrt( ofstream & os ) { return os.prt; } |
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| 50 | void setPrt( ofstream & os, bool state ) { os.prt = state; } |
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[829c907] | 51 | |
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[9ebd778] | 52 | // public |
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[8da74119] | 53 | void ?{}( ofstream & os ) { os.file = 0; } |
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[829c907] | 54 | |
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[09687aa] | 55 | void ?{}( ofstream & os, const char * name, const char * mode ) { |
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| 56 | open( os, name, mode ); |
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| 57 | } |
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[8da74119] | 58 | void ?{}( ofstream & os, const char * name ) { |
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| 59 | open( os, name, "w" ); |
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| 60 | } |
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[09687aa] | 61 | |
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| 62 | void sepOn( ofstream & os ) { os.sepOnOff = ! getNL( os ); } |
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| 63 | void sepOff( ofstream & os ) { os.sepOnOff = false; } |
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| 64 | |
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[93c2e0a] | 65 | bool sepDisable( ofstream & os ) { |
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| 66 | bool temp = os.sepDefault; |
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[09687aa] | 67 | os.sepDefault = false; |
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[53ba273] | 68 | sepReset( os ); |
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| 69 | return temp; |
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| 70 | } // sepDisable |
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[6152c81] | 71 | |
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[93c2e0a] | 72 | bool sepEnable( ofstream & os ) { |
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| 73 | bool temp = os.sepDefault; |
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[09687aa] | 74 | os.sepDefault = true; |
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| 75 | if ( os.sepOnOff ) sepReset( os ); // start of line ? |
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[53ba273] | 76 | return temp; |
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| 77 | } // sepEnable |
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[90c3b1c] | 78 | |
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[200fcb3] | 79 | void nlOn( ofstream & os ) { os.nlOnOff = true; } |
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| 80 | void nlOff( ofstream & os ) { os.nlOnOff = false; } |
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| 81 | |
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[09687aa] | 82 | const char * sepGet( ofstream & os ) { return os.separator; } |
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| 83 | void sepSet( ofstream & os, const char * s ) { |
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[9ebd778] | 84 | assert( s ); |
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[09687aa] | 85 | strncpy( os.separator, s, sepSize - 1 ); |
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| 86 | os.separator[sepSize - 1] = '\0'; |
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[9ebd778] | 87 | } // sepSet |
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| 88 | |
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[09687aa] | 89 | const char * sepGetTuple( ofstream & os ) { return os.tupleSeparator; } |
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| 90 | void sepSetTuple( ofstream & os, const char * s ) { |
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[9ebd778] | 91 | assert( s ); |
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[09687aa] | 92 | strncpy( os.tupleSeparator, s, sepSize - 1 ); |
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| 93 | os.tupleSeparator[sepSize - 1] = '\0'; |
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[9ebd778] | 94 | } // sepSet |
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| 95 | |
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[09687aa] | 96 | int fail( ofstream & os ) { |
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[8da74119] | 97 | return os.file == 0 || ferror( (FILE *)(os.file) ); |
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[6ba0659] | 98 | } // fail |
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| 99 | |
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[09687aa] | 100 | int flush( ofstream & os ) { |
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| 101 | return fflush( (FILE *)(os.file) ); |
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[6ba0659] | 102 | } // flush |
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| 103 | |
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[09687aa] | 104 | void open( ofstream & os, const char * name, const char * mode ) { |
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[90c3b1c] | 105 | FILE *file = fopen( name, mode ); |
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[93c2e0a] | 106 | #ifdef __CFA_DEBUG__ |
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| 107 | if ( file == 0 ) { |
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[8a25be9] | 108 | abort( IO_MSG "open output file \"%s\", %s", name, strerror( errno ) ); |
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[93c2e0a] | 109 | } // if |
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| 110 | #endif // __CFA_DEBUG__ |
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[200fcb3] | 111 | (os){ file, true, false, true, false, " ", ", " }; |
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[6ba0659] | 112 | } // open |
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| 113 | |
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[8da74119] | 114 | void open( ofstream & os, const char * name ) { |
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| 115 | open( os, name, "w" ); |
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| 116 | } // open |
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| 117 | |
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[09687aa] | 118 | void close( ofstream & os ) { |
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| 119 | if ( (FILE *)(os.file) == stdout || (FILE *)(os.file) == stderr ) return; |
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[6ba0659] | 120 | |
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[09687aa] | 121 | if ( fclose( (FILE *)(os.file) ) == EOF ) { |
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[8a25be9] | 122 | abort( IO_MSG "close output %s", strerror( errno ) ); |
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[356189a] | 123 | } // if |
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[6ba0659] | 124 | } // close |
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| 125 | |
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[91d766d] | 126 | ofstream & write( ofstream & os, const char * data, size_t size ) { |
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[6ba0659] | 127 | if ( fail( os ) ) { |
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[8a25be9] | 128 | abort( "attempt write I/O on failed stream\n" ); |
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[6ba0659] | 129 | } // if |
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| 130 | |
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[09687aa] | 131 | if ( fwrite( data, 1, size, (FILE *)(os.file) ) != size ) { |
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[8a25be9] | 132 | abort( IO_MSG "write %s", strerror( errno ) ); |
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[839ccbb] | 133 | } // if |
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[86bd7c1f] | 134 | return os; |
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[839ccbb] | 135 | } // write |
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[51b7345] | 136 | |
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[09687aa] | 137 | int fmt( ofstream & os, const char format[], ... ) { |
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[5d125e4] | 138 | va_list args; |
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[829c907] | 139 | va_start( args, format ); |
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[09687aa] | 140 | int len = vfprintf( (FILE *)(os.file), format, args ); |
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[90c3b1c] | 141 | if ( len == EOF ) { |
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[09687aa] | 142 | if ( ferror( (FILE *)(os.file) ) ) { |
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[8a25be9] | 143 | abort( "invalid write\n" ); |
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[90c3b1c] | 144 | } // if |
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| 145 | } // if |
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[5d125e4] | 146 | va_end( args ); |
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[b72bad4f] | 147 | |
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[9d362a0] | 148 | setPrt( os, true ); // called in output cascade |
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[b72bad4f] | 149 | sepReset( os ); // reset separator |
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[90c3b1c] | 150 | return len; |
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[829c907] | 151 | } // fmt |
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| 152 | |
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[200fcb3] | 153 | static ofstream soutFile = { (FILE *)(&_IO_2_1_stdout_), true, false, true, false, " ", ", " }; |
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[09687aa] | 154 | ofstream & sout = soutFile; |
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[200fcb3] | 155 | static ofstream serrFile = { (FILE *)(&_IO_2_1_stderr_), true, false, true, false, " ", ", " }; |
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[09687aa] | 156 | ofstream & serr = serrFile; |
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[51b7345] | 157 | |
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[90c3b1c] | 158 | |
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[6ba0659] | 159 | //--------------------------------------- |
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[51b7345] | 160 | |
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[09687aa] | 161 | // private |
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| 162 | void ?{}( ifstream & is, void * file ) { |
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| 163 | is.file = file; |
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| 164 | } |
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| 165 | |
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| 166 | // public |
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[8da74119] | 167 | void ?{}( ifstream & is ) { is.file = 0; } |
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[51b7345] | 168 | |
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[8da74119] | 169 | void ?{}( ifstream & is, const char * name, const char * mode ) { |
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| 170 | open( is, name, mode ); |
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| 171 | } |
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[09687aa] | 172 | void ?{}( ifstream & is, const char * name ) { |
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[8da74119] | 173 | open( is, name, "r" ); |
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[09687aa] | 174 | } |
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| 175 | |
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| 176 | int fail( ifstream & is ) { |
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[8da74119] | 177 | return is.file == 0 || ferror( (FILE *)(is.file) ); |
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[6ba0659] | 178 | } // fail |
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| 179 | |
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[09687aa] | 180 | int eof( ifstream & is ) { |
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| 181 | return feof( (FILE *)(is.file) ); |
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[6ba0659] | 182 | } // eof |
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| 183 | |
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[8da74119] | 184 | void open( ifstream & is, const char * name, const char * mode ) { |
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[8a25be9] | 185 | FILE * file = fopen( name, mode ); |
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[93c2e0a] | 186 | #ifdef __CFA_DEBUG__ |
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| 187 | if ( file == 0 ) { |
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[8a25be9] | 188 | abort( IO_MSG "open input file \"%s\", %s\n", name, strerror( errno ) ); |
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[93c2e0a] | 189 | } // if |
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| 190 | #endif // __CFA_DEBUG__ |
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[09687aa] | 191 | is.file = file; |
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[90c3b1c] | 192 | } // open |
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[6ba0659] | 193 | |
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[8da74119] | 194 | void open( ifstream & is, const char * name ) { |
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| 195 | open( is, name, "r" ); |
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| 196 | } // open |
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| 197 | |
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[09687aa] | 198 | void close( ifstream & is ) { |
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| 199 | if ( (FILE *)(is.file) == stdin ) return; |
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[90c3b1c] | 200 | |
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[09687aa] | 201 | if ( fclose( (FILE *)(is.file) ) == EOF ) { |
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[8a25be9] | 202 | abort( IO_MSG "close input %s", strerror( errno ) ); |
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[356189a] | 203 | } // if |
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[90c3b1c] | 204 | } // close |
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| 205 | |
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[91d766d] | 206 | ifstream & read( ifstream & is, char * data, size_t size ) { |
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[6ba0659] | 207 | if ( fail( is ) ) { |
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[8a25be9] | 208 | abort( "attempt read I/O on failed stream\n" ); |
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[6ba0659] | 209 | } // if |
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| 210 | |
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[09687aa] | 211 | if ( fread( data, size, 1, (FILE *)(is.file) ) == 0 ) { |
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[8a25be9] | 212 | abort( IO_MSG "read %s", strerror( errno ) ); |
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[6ba0659] | 213 | } // if |
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[86bd7c1f] | 214 | return is; |
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[6ba0659] | 215 | } // read |
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[356189a] | 216 | |
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[09687aa] | 217 | ifstream &ungetc( ifstream & is, char c ) { |
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[6ba0659] | 218 | if ( fail( is ) ) { |
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[8a25be9] | 219 | abort( "attempt ungetc I/O on failed stream\n" ); |
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[6ba0659] | 220 | } // if |
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[51b7345] | 221 | |
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[09687aa] | 222 | if ( ungetc( c, (FILE *)(is.file) ) == EOF ) { |
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[8a25be9] | 223 | abort( IO_MSG "ungetc %s", strerror( errno ) ); |
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[6ba0659] | 224 | } // if |
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| 225 | return is; |
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| 226 | } // ungetc |
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[51b7345] | 227 | |
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[09687aa] | 228 | int fmt( ifstream & is, const char format[], ... ) { |
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[5d125e4] | 229 | va_list args; |
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[51b7345] | 230 | |
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[829c907] | 231 | va_start( args, format ); |
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[09687aa] | 232 | int len = vfscanf( (FILE *)(is.file), format, args ); |
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[90c3b1c] | 233 | if ( len == EOF ) { |
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[09687aa] | 234 | if ( ferror( (FILE *)(is.file) ) ) { |
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[8a25be9] | 235 | abort( "invalid read\n" ); |
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[90c3b1c] | 236 | } // if |
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| 237 | } // if |
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[5d125e4] | 238 | va_end( args ); |
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[90c3b1c] | 239 | return len; |
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[829c907] | 240 | } // fmt |
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[51b7345] | 241 | |
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| 242 | |
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[6ba0659] | 243 | static ifstream sinFile = { (FILE *)(&_IO_2_1_stdin_) }; |
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[09687aa] | 244 | ifstream & sin = sinFile; |
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[86bd7c1f] | 245 | |
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| 246 | // Local Variables: // |
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| 247 | // tab-width: 4 // |
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| 248 | // End: // |
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