Changes in src/libcfa/fstream.c [53ba273:6ba0659]
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src/libcfa/fstream.c (modified) (8 diffs)
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src/libcfa/fstream.c
r53ba273 r6ba0659 7 7 // fstream.c -- 8 8 // 9 // Author : Peter A. Buhr9 // Author : Richard C. Bilson 10 10 // Created On : Wed May 27 17:56:53 2015 11 11 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Wed Apr 6 17:55:27201613 // Update Count : 17612 // Last Modified On : Wed Feb 17 14:03:05 2016 13 // Update Count : 76 14 14 // 15 15 … … 17 17 18 18 extern "C" { 19 #include <stdio.h> // vfprintf, vfscanf 20 #include <stdlib.h> // exit 21 #include <stdarg.h> // varargs 22 #include <string.h> // strlen 23 #include <float.h> // DBL_DIG, LDBL_DIG 24 #include <complex.h> // creal, cimag 19 #include <stdio.h> 20 #include <stdlib.h> 25 21 } 26 22 27 #define IO_MSG "I/O error: " 23 struct ofstream { 24 FILE *file; 25 }; 28 26 29 _Bool sepPrt( ofstream * os ) { return os->sepOnOff; } 30 void sepOn( ofstream * os ) { os->sepOnOff = 1; } 31 void sepOff( ofstream * os ) { os->sepOnOff = 0; } 32 void sepReset( ofstream * os ) { os->sepOnOff = os->sepDefault; } 33 void sepReset( ofstream * os, _Bool reset ) { os->sepDefault = reset; os->sepOnOff = os->sepDefault; } 34 void sepSet( ofstream * os, const char * s ) { 35 strncpy( &(os->separator[0]), s, separateSize - 1 ); 36 os->separator[separateSize - 1] = '\0'; 37 } // sepSet 38 const char * sepGet( ofstream * os ) { return &(os->separator[0]); } 39 _Bool sepDisable( ofstream *os ) { 40 _Bool temp = os->sepDefault; 41 os->sepDefault = 0; 42 sepReset( os ); 43 return temp; 44 } // sepDisable 45 _Bool sepEnable( ofstream *os ) { 46 _Bool temp = os->sepDefault; 47 os->sepDefault = 1; 48 sepReset( os ); 49 return temp; 50 } // sepEnable 27 #define IO_MSG "I/O error " 51 28 52 29 int fail( ofstream * os ) { 53 return ferror( (FILE *)(os->file));30 return ferror( os->file ); 54 31 } // fail 55 32 56 33 int flush( ofstream * os ) { 57 return fflush( (FILE *)(os->file));34 return fflush( os->file ); 58 35 } // flush 59 36 60 void open( ofstream * os, const char * name, const char * mode ) { 61 FILE *file = fopen( name, mode ); 62 if ( file == 0 ) { // do not change unless successful 63 fprintf( stderr, IO_MSG "open output file \"%s\", ", name ); 64 perror( 0 ); 37 void open( ofstream ** os, const char * name, const char * mode ) { 38 FILE *t = fopen( name, mode ); 39 if ( t == 0 ) { // do not change unless successful 40 perror( IO_MSG "open output" ); 65 41 exit( EXIT_FAILURE ); 66 42 } // if 67 os->file = file; 68 sepOff( os ); 69 sepSet( os, " " ); 43 (*os)->file = t; 70 44 } // open 71 45 72 46 void close( ofstream * os ) { 73 if ( (FILE *)(os->file) == stdout || (FILE *)(os->file)== stderr ) return;47 if ( os->file == stdout || os->file == stderr ) return; 74 48 75 if ( fclose( (FILE *)(os->file)) == EOF ) {49 if ( fclose( os->file ) == EOF ) { 76 50 perror( IO_MSG "close output" ); 77 51 } // if 78 52 } // close 79 53 80 ofstream * write( ofstream * os, const char * data, unsigned long intsize ) {54 ofstream * write( ofstream * os, const char * data, streamsize_type size ) { 81 55 if ( fail( os ) ) { 82 56 fprintf( stderr, "attempt write I/O on failed stream\n" ); … … 84 58 } // if 85 59 86 if ( fwrite( data, 1, size, (FILE *)(os->file)) != size ) {60 if ( fwrite( data, 1, size, os->file ) != size ) { 87 61 perror( IO_MSG "write" ); 88 62 exit( EXIT_FAILURE ); … … 91 65 } // write 92 66 93 int prtfmt( ofstream * os, const char fmt[], ... ) { 94 va_list args; 67 static ofstream soutFile = { (FILE *)(&_IO_2_1_stdout_) }; 68 ofstream *sout = &soutFile; 69 static ofstream serrFile = { (FILE *)(&_IO_2_1_stderr_) }; 70 ofstream *serr = &serrFile; 95 71 96 va_start( args, fmt ); 97 int len = vfprintf( (FILE *)(os->file), fmt, args ); 98 if ( len == EOF ) { 99 if ( ferror( (FILE *)(os->file) ) ) { 100 fprintf( stderr, "invalid write\n" ); 72 //--------------------------------------- 73 74 struct ifstream { 75 FILE *file; 76 }; 77 78 int fail( ifstream * is ) { 79 return ferror( is->file ); 80 } // fail 81 82 int eof( ifstream * is ) { 83 return feof( is->file ); 84 } // eof 85 86 ifstream * get( ifstream * is, int * data ) { 87 if ( fscanf( is->file, "%d", data ) == EOF ) { 88 if ( ferror( is->file ) ) { 89 fprintf( stderr, "invalid int read\n" ); 101 90 exit( EXIT_FAILURE ); 102 91 } // if 103 92 } // if 104 va_end( args ); 105 return len; 106 } // prtfmt 93 return is; 94 } // read 107 95 108 109 static ofstream soutFile = { (FILE *)(&_IO_2_1_stdout_), 1, 0, { ' ', '\0' } }; 110 ofstream *sout = &soutFile; 111 static ofstream serrFile = { (FILE *)(&_IO_2_1_stderr_), 1, 0, { ' ', '\0' } }; 112 ofstream *serr = &serrFile; 113 114 115 //--------------------------------------- 116 117 118 int fail( ifstream * is ) { 119 return ferror( (FILE *)(is->file) ); 120 } // fail 121 122 int eof( ifstream * is ) { 123 return feof( (FILE *)(is->file) ); 124 } // eof 125 126 void open( ifstream * is, const char * name, const char * mode ) { 127 FILE *t = fopen( name, mode ); 128 if ( t == 0 ) { // do not change unless successful 129 fprintf( stderr, IO_MSG "open input file \"%s\", ", name ); 130 perror( 0 ); 131 exit( EXIT_FAILURE ); 132 } // if 133 is->file = t; 134 } // open 135 136 void close( ifstream * is ) { 137 if ( (FILE *)(is->file) == stdin ) return; 138 139 if ( fclose( (FILE *)(is->file) ) == EOF ) { 140 perror( IO_MSG "close input" ); 141 } // if 142 } // close 143 144 ifstream * read( ifstream * is, char * data, unsigned long int size ) { 96 ifstream * read( ifstream * is, char * data, streamsize_type size ) { 145 97 if ( fail( is ) ) { 146 98 fprintf( stderr, "attempt read I/O on failed stream\n" ); … … 148 100 } // if 149 101 150 if ( fread( data, size, 1, (FILE *)(is->file)) == 0 ) {102 if ( fread( data, size, 1, is->file ) == 0 ) { 151 103 perror( IO_MSG "read" ); 152 104 exit( EXIT_FAILURE ); … … 161 113 } // if 162 114 163 if ( ungetc( c, (FILE *)(is->file)) == EOF ) {115 if ( ungetc( c, is->file ) == EOF ) { 164 116 perror( IO_MSG "ungetc" ); 165 117 exit( EXIT_FAILURE ); … … 168 120 } // ungetc 169 121 170 int scanfmt( ifstream * is, const char fmt[], ... ) { 171 va_list args; 122 void open( ifstream ** is, const char * name, const char * mode ) { 123 FILE *t = fopen( name, mode ); 124 if ( t == 0 ) { // do not change unless successful 125 perror( IO_MSG "open input" ); 126 exit( EXIT_FAILURE ); 127 } // if 128 (*is)->file = t; 129 } // open 172 130 173 va_start( args, fmt ); 174 int len = vfscanf( (FILE *)(is->file), fmt, args ); 175 if ( len == EOF ) { 176 if ( ferror( (FILE *)(is->file) ) ) { 177 fprintf( stderr, "invalid read\n" ); 178 exit( EXIT_FAILURE ); 179 } // if 180 } // if 181 va_end( args ); 182 return len; 183 } // prtfmt 131 void close( ifstream * is ) { 132 if ( is->file == stdin ) return; 184 133 134 if ( fclose( is->file ) == EOF ) { 135 perror( IO_MSG "close input" ); 136 } // if 137 } // close 185 138 186 139 static ifstream sinFile = { (FILE *)(&_IO_2_1_stdin_) }; … … 189 142 // Local Variables: // 190 143 // tab-width: 4 // 144 // compile-command: "cfa fstream.c" // 191 145 // End: //
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