Write Charset To File : char « Data Types

Write Charset To File : char « Data Types « C++ Tutorial

1.	Language Basics
2.	Data Types
3.	Operators statements
4.	Array
5.	Development
6.	Exceptions
7.	Function
8.	Structure
9.	Class
10.	Operator Overloading
11.	Pointer
12.	File Stream
13.	template
14.	STL Introduction
15.	string
16.	vector
17.	list
18.	bitset
19.	set multiset
20.	valarray
21.	queue stack
22.	deque
23.	map multimap
24.	STL Algorithms Modifying sequence operations
25.	STL Algorithms Non modifying sequence operations
26.	STL Algorithms Binary search
27.	STL Algorithms Sorting
28.	STL Algorithms Merge
29.	STL Algorithms Min Max
30.	STL Algorithms Iterator
31.	STL Algorithms Heap
32.	STL Algorithms Helper

C / ANSI-C

C Tutorial

C++

Visual C++ .NET

C++ Tutorial » Data Types » char

2.19.2.Write Charset To File

/* 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:  61   char:  =
value:  62   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:  �
value: 129   char:
value: 130   char:
value: 131   char:
value: 132   char:
value: 133   char:
value: 134   char:
value: 135   char:
value: 136   char:
value: 137   char:
value: 138   char:
value: 139   char:
value: 140   char:
value: 141   char:
value: 142   char:
value: 143   char:
value: 144   char:
value: 145   char:
value: 146   char:
value: 147   char:
value: 148   char:
value: 149   char:
value: 150   char:
value: 151   char:
value: 152   char:
value: 153   char:
value: 154   char:
value: 155   char:
value: 156   char:
value: 157   char:
value: 158   char:
value: 159   char:
value: 160   char:
value: 161   char:
value: 162   char:
value: 163   char:
value: 164   char:
value: 165   char:
value: 166   char:
value: 167   char:
value: 168   char:
value: 169   char:
value: 170   char:
value: 171   char:
value: 172   char:
value: 173   char:
value: 174   char:
value: 175   char:
value: 176   char:
value: 177   char:
value: 178   char:
value: 179   char:
value: 180   char:
value: 181   char:
value: 182   char:
value: 183   char:
value: 184   char:
value: 185   char:
value: 186   char:
value: 187   char:
value: 188   char:
value: 189   char:
value: 190   char:
value: 191   char:
value: 192   char:
value: 193   char:
value: 194   char:
value: 195   char:
value: 196   char:
value: 197   char:
value: 198   char:
value: 199   char:
value: 200   char:
value: 201   char:
value: 202   char:
value: 203   char:
value: 204   char:
value: 205   char:
value: 206   char:
value: 207   char:
value: 208   char:
value: 209   char:
value: 210   char:
value: 211   char:
value: 212   char:
value: 213   char:
value: 214   char:
value: 215   char:
value: 216   char:
value: 217   char:
value: 218   char:
value: 219   char:
value: 220   char:
value: 221   char:
value: 222   char:
value: 223   char:
value: 224   char:
value: 225   char:
value: 226   char:
value: 227   char:
value: 228   char:
value: 229   char:
value: 230   char:
value: 231   char:
value: 232   char:
value: 233   char:
value: 234   char:
value: 235   char:
value: 236   char:
value: 237   char:
value: 238   char:
value: 239   char:
value: 240   char:
value: 241   char:
value: 242   char:
value: 243   char:
value: 244   char:
value: 245   char:
value: 246   char:
value: 247   char:
value: 248   char:
value: 249   char:
value: 250   char:
value: 251   char:
value: 252   char:
value: 253   char:
value: 254   char:
value: 255   char:  �

2.19.char
	2.19.1.	char and unsigned char
	2.19.2.	Write Charset To File
	2.19.3.	DO while loop: use char type variable to control
	2.19.4.	Using a nested if with char type

www.java2java.com | Contact Us

All other trademarks are property of their respective owners.