Mega Code Archive
Write Charset To File
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/* The following code example is taken from the book
* "The C++ Standard Library - A Tutorial and Reference"
* by Nicolai M. Josuttis, Addison-Wesley, 1999
*
* (C) Copyright Nicolai M. Josuttis 1999.
* Permission to copy, use, modify, sell and distribute this software
* is granted provided this copyright notice appears in all copies.
* This software is provided "as is" without express or implied
* warranty, and with no claim as to its suitability for any purpose.
*/
#include <string> // for strings
#include <iostream> // for I/O
#include <fstream> // for file I/O
#include <iomanip> // for setw()
#include <cstdlib> // for exit()
using namespace std;
// forward declarations
void writeCharsetToFile (const string& filename);
void outputFile (const string& filename);
int main ()
{
writeCharsetToFile("charset.out");
outputFile("charset.out");
}
void writeCharsetToFile (const string& filename)
{
// open output file
ofstream file(filename.c_str());
// file opened?
if (! file) {
// NO, abort program
cerr << "can't open output file \"" << filename << "\""
<< endl;
exit(EXIT_FAILURE);
}
// write character set
for (int i=32; i<256; i++) {
file << "value: " << setw(3) << i << " "
<< "char: " << static_cast<char>(i) << endl;
}
} // closes file automatically
void outputFile (const string& filename)
{
// open input file
ifstream file(filename.c_str());
// file opened?
if (! file) {
// NO, abort program
cerr << "can't open input file \"" << filename << "\""
<< endl;
exit(EXIT_FAILURE);
}
// copy file contents to cout
char c;
while (file.get(c)) {
cout.put(c);
}
} // closes file automatically
value: 32 char:
value: 33 char: !
value: 34 char: "
value: 35 char: #
value: 36 char: $
value: 37 char: %
value: 38 char: &
value: 39 char: '
value: 40 char: (
value: 41 char: )
value: 42 char: *
value: 43 char: +
value: 44 char: ,
value: 45 char: -
value: 46 char: .
value: 47 char: /
value: 48 char: 0
value: 49 char: 1
value: 50 char: 2
value: 51 char: 3
value: 52 char: 4
value: 53 char: 5
value: 54 char: 6
value: 55 char: 7
value: 56 char: 8
value: 57 char: 9
value: 58 char: :
value: 59 char: ;
value: 60 char:
value: 63 char: ?
value: 64 char: @
value: 65 char: A
value: 66 char: B
value: 67 char: C
value: 68 char: D
value: 69 char: E
value: 70 char: F
value: 71 char: G
value: 72 char: H
value: 73 char: I
value: 74 char: J
value: 75 char: K
value: 76 char: L
value: 77 char: M
value: 78 char: N
value: 79 char: O
value: 80 char: P
value: 81 char: Q
value: 82 char: R
value: 83 char: S
value: 84 char: T
value: 85 char: U
value: 86 char: V
value: 87 char: W
value: 88 char: X
value: 89 char: Y
value: 90 char: Z
value: 91 char: [
value: 92 char: \
value: 93 char: ]
value: 94 char: ^
value: 95 char: _
value: 96 char: '
value: 97 char: a
value: 98 char: b
value: 99 char: c
value: 100 char: d
value: 101 char: e
value: 102 char: f
value: 103 char: g
value: 104 char: h
value: 105 char: i
value: 106 char: j
value: 107 char: k
value: 108 char: l
value: 109 char: m
value: 110 char: n
value: 111 char: o
value: 112 char: p
value: 113 char: q
value: 114 char: r
value: 115 char: s
value: 116 char: t
value: 117 char: u
value: 118 char: v
value: 119 char: w
value: 120 char: x
value: 121 char: y
value: 122 char: z
value: 123 char: {
value: 124 char: |
value: 125 char: }
value: 126 char: ~
value: 127 char:
value: 128 char: €
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value: 255 char: ÿ
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