C RSS C RSS

Prog to list ASCII codes (beginners' stuff)

Reply
1 2

•
•
Join Date: Sep 2004
Posts: 11
Reputation: Anu is an unknown quantity at this point 
Solved Threads: 0
Anu Anu is offline Offline
Newbie Poster

Prog to list ASCII codes (beginners' stuff)

 
1
  #1
Sep 24th, 2004
Hi,

I just started a program containing every single prog we have done for school so far and added some private stuff.
Searching through my older files I found a prog which lists all Integers between 1 and 255 and their respective ASCII char, so I decided to include it into my 'collection'.

The problem is that 'twas a Win32 executable and we're working under DOS. Well actually this wouldn't be much of a problem, but the script seems no to work under DOS.

Well, first of here's the script:
C Syntax (Toggle Plain Text) 
  1.   	# include <iostream.h>
  2.    # include <conio.h>
  3.  
  4.    main()
  5.    {
  6.       int i, j, ip, ipp;
  7.       float k, l;
  8.       char zeichen;
  9.       for (i=1;i<=254;i++)
  10.       {
  11.           zeichen=i;
  12.           cout<<"\n"<<i<<" - "<<zeichen;
  13.           j=1;
  14.           for (j=1;j<=25;j++)
  15.           {
  16.                k=1.0*i/20;
  17.                l=1.0*j;
  18.                if (k==l)
  19.                {
  20.                     ip=i+1;
  21.                     ipp=i+20;
  22.                     if (i<=240) cout<<"\n\n(Press any key -->  "<<ip<<" to "<<ipp<<" )";
  23.                     getch();
  24.                     clrscr();
  25.                };
  26.            }
  27.         }
  28.         getch();
  29.    }

As I stated, no problems under Win32, but under DOS it stops at 26 and after pressing a key again the screen gets cleared again and stays black.

So my question is..is there any way to get something like this running under DOS?

I tried a simple "cin>>intvar; charvar=intvar; cout<<charvar;" aswell, but any value above 25 simply results in nothing being put out.

Well, thanks in advance.~
Reply With Quote Quick reply to this message  
•
•
Join Date: Apr 2004
Posts: 4,309
Reputation: Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future 
Solved Threads: 228
Team Colleague
Dave Sinkula's Avatar
Dave Sinkula Dave Sinkula is offline Offline
long time no c

Re: Prog to list ASCII codes (beginners' stuff)

 
0
  #2
Sep 24th, 2004
Skip 26. Or better yet, skip printing everything non-printable.
C Syntax (Toggle Plain Text) 
  1.  #include <stdio.h>
  2.  #include <ctype.h>
  3.  
  4.  int main(void)
  5.  {
  6.     int i;
  7.     for ( i = 0; i < 256; ++i )
  8.     {
  9.  	  putchar(isprint(i) ? i : '.');
  10.  	  putchar(i % 16 == 15 ? '\n' : ' ');
  11.     }
  12.     return 0;
  13.  }
  14.  
  15.  /* my output
  16.  . . . . . . . . . . . . . . . .
  17.  . . . . . . . . . . . . . . . .
  18.    ! " # $ % & ' ( ) * + , - . /
  19.  0 1 2 3 4 5 6 7 8 9 : ; < = > ?
  20.  @ A B C D E F G H I J K L M N O
  21.  P Q R S T U V W X Y Z [ \ ] ^ _
  22.  ` a b c d e f g h i j k l m n o
  23.  p q r s t u v w x y z { | } ~ .
  24.  . . . . . . . . . . . . . . . .
  25.  . . . . . . . . . . . . . . . .
  26.  . . . . . . . . . . . . . . . .
  27.  . . . . . . . . . . . . . . . .
  28.  . . . . . . . . . . . . . . . .
  29.  . . . . . . . . . . . . . . . .
  30.  . . . . . . . . . . . . . . . .
  31.  . . . . . . . . . . . . . . . .
  32.  */
Last edited by Dave Sinkula; Sep 24th, 2004 at 6:45 pm. Reason: Added code.
"One of the methods used by statists to destroy capitalism consists in establishing controls that tie a given industry hand and foot, making it unable to solve its problems, then declaring that freedom has failed and stronger controls are necessary." --Ayn Rand
Reply With Quote Quick reply to this message  
•
•
Join Date: Sep 2004
Posts: 11
Reputation: Anu is an unknown quantity at this point 
Solved Threads: 0
Anu Anu is offline Offline
Newbie Poster

Re: Prog to list ASCII codes (beginners' stuff)

 
0
  #3
Sep 24th, 2004
•
•
•
•
Originally Posted by Dave Sinkula
Skip 26. Or better yet, skip printing everything non-printable.
Wow, thanks for the fast reply.

Well, but how to skip them most easily?

The first and more or less only thing that comes into my mind is like:

if ( i != 26 && i != anotherone && i != yetanotherone &&...
Reply With Quote Quick reply to this message  
•
•
Join Date: Apr 2004
Posts: 4,309
Reputation: Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future 
Solved Threads: 228
Team Colleague
Dave Sinkula's Avatar
Dave Sinkula Dave Sinkula is offline Offline
long time no c

Re: Prog to list ASCII codes (beginners' stuff)

 
0
  #4
Sep 24th, 2004
[Oops. I see your reply beat my edit.]

I'd use isprint.

C Syntax (Toggle Plain Text) 
  1. #include <stdio.h>
  2.  #include <ctype.h>
  3.  
  4.  int main(void)
  5.  {
  6.     int i;
  7.     for ( i = 0; i < 128; ++i )
  8.     {
  9.  	  putchar(isprint(i) ? i : '.');
  10.  	  putchar(i % 32 == 31 ? '\n' : ' ');
  11.     }
  12.     return 0;
  13.  }
  14.  
  15.  /* my output
  16.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  17.    ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ?
  18.  @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _
  19.  ` a b c d e f g h i j k l m n o p q r s t u v w x y z { | } ~ .
  20.  */
"One of the methods used by statists to destroy capitalism consists in establishing controls that tie a given industry hand and foot, making it unable to solve its problems, then declaring that freedom has failed and stronger controls are necessary." --Ayn Rand
Reply With Quote Quick reply to this message  
•
•
Join Date: Sep 2004
Posts: 11
Reputation: Anu is an unknown quantity at this point 
Solved Threads: 0
Anu Anu is offline Offline
Newbie Poster

Re: Prog to list ASCII codes (beginners' stuff)

 
0
  #5
Sep 24th, 2004
I see, thanks again.

But seeing this...

The output under Win32 is like:
C Syntax (Toggle Plain Text) 
  1. 1   - ☺ 
  2. 2   - ☻ 
  3. 3   - ♥ 
  4. 4   - ♦
  5. 5   - ♣
  6. 6   - ♠
  7. 7   -
  8. 8   -
  9. 9   -
  10. 10  -
  11. 11  - ♂
  12. 12  - ♀
  13. 13  - 
  14. 14  - ♫
  15. 15  - ☼ 
  16. 16  - ► 
  17. 17  - ◄ 
  18. 18  - ↕
  19. 19  - ‼
  20. 20  - ¶
  21. 21  - §
And so on, so...

Aint I able to display the 255 ones of those under Dos?
Reply With Quote Quick reply to this message  
•
•
Join Date: Sep 2004
Posts: 185
Reputation: Stack Overflow is an unknown quantity at this point 
Solved Threads: 4
Stack Overflow's Avatar
Stack Overflow Stack Overflow is offline Offline
C Programmer

Re: Prog to list ASCII codes (beginners' stuff)

 
0
  #6
Sep 24th, 2004
Check out http://www.asciitable.com/

The full list of ASCII characters are there. The function isprint() knows which of the characters are printable. isprint() returns a nonzero value if the input is a printable character, including the space character (0x20 – 0x7E). The other characters are either extended, or do other features which aren't print friendly.

More information on isprint()
isprint() is included in the ctype library, ctype.h:

int isprint(int c);
» This function returns nonzero if c is a space or a character for which either isalnum() or ispunct() returns nonzero.

int isalnum(int c);
» This function returns nonzero if c is any of or other locale-specific alphabetic character.
According to AsciiTable.com
Characters	ASCII
a thru z	97 thru 122
A thru Z	65 thru 90
0 thru 9	48 thru 57
int ispunct(int c);
» This function returns nonzero if c is any of the following or other implementation-defined punctuation character:
According to AsciiTable.com
Characters			ASCII
! " # $ % & ' ( ) * + , - . /	33 thru 47
: ; < = > ? @			58 thru 64
[ \ ] ^ _ '			91 thru 96
{ | } ~				123 thru 126

Hope this helps,
- Stack Overflow
Last edited by Stack Overflow; Sep 24th, 2004 at 8:15 pm. Reason: More detailed information
Following the rules will ensure you get a prompt answer to your question. If posting code, please include BB [code][/code] tags. Your question may have been asked before, try the search facility.

IRC
Channel: irc.daniweb.com
Room: #c, #shell
Reply With Quote Quick reply to this message  
•
•
Join Date: Sep 2004
Posts: 11
Reputation: Anu is an unknown quantity at this point 
Solved Threads: 0
Anu Anu is offline Offline
Newbie Poster

Re: Prog to list ASCII codes (beginners' stuff)

 
0
  #7
Sep 24th, 2004
Thanks, might be quite of use, though probably not directly in what I'm thinking of.

See the attachments, I just want the fourth attachment (Dos, page2) to be like the second one (W32, page2).
Attached Images
File Type: jpg w32a.JPG (8.5 KB, 4 views)
File Type: jpg w32b.JPG (10.2 KB, 5 views)
File Type: jpg dosa.JPG (10.7 KB, 5 views)
File Type: jpg dosb.JPG (4.3 KB, 5 views)
Reply With Quote Quick reply to this message  
•
•
Join Date: Apr 2004
Posts: 4,309
Reputation: Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future 
Solved Threads: 228
Team Colleague
Dave Sinkula's Avatar
Dave Sinkula Dave Sinkula is offline Offline
long time no c

Re: Prog to list ASCII codes (beginners' stuff)

 
0
  #8
Sep 24th, 2004
•
•
•
•
Originally Posted by Stack Overflow
Check out http://www.asciitable.com/

The full list of ASCII characters are there. The function isprint() knows which of the characters are printable. isprint() returns a nonzero value if the input is a printable character, including the space character (0x20 – 0x7E). The other characters are either extended, or do other features which aren't print friendly.

More information on isprint()
isprint() is included in the ctype library, ctype.h:

int isprint(int c);
» This function returns nonzero if c is a space or a character for which either isalnum() or ispunct() returns nonzero.

int isalnum(int c);
» This function returns nonzero if c is any of or other locale-specific alphabetic character.
According to AsciiTable.com
 Characters	ASCII
 a thru z	97 thru 122
 A thru Z	65 thru 90
 0 thru 9	48 thru 57
int ispunct(int c);
» This function returns nonzero if c is any of the following or other implementation-defined punctuation character:
According to AsciiTable.com
 Characters			ASCII
 ! " # $ % & ' ( ) * + , - . /	33 thru 47
 : ; < = > ? @			58 thru 64
 [ \ ] ^ _ '			91 thru 96
 { | } ~				123 thru 126

Hope this helps,
- Stack Overflow
The greater utility of functions like ispunct and isalnum are that they also work with other character sets, some of which, for example, do not necessarily have a contiguous alphabet or such. They are designed to work regardless of the particular implementation.
"One of the methods used by statists to destroy capitalism consists in establishing controls that tie a given industry hand and foot, making it unable to solve its problems, then declaring that freedom has failed and stronger controls are necessary." --Ayn Rand
Reply With Quote Quick reply to this message  
•
•
Join Date: Apr 2004
Posts: 4,309
Reputation: Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future Dave Sinkula has a brilliant future 
Solved Threads: 228
Team Colleague
Dave Sinkula's Avatar
Dave Sinkula Dave Sinkula is offline Offline
long time no c

Re: Prog to list ASCII codes (beginners' stuff)

 
0
  #9
Sep 24th, 2004
•
•
•
•
Originally Posted by Anu
See the attachments, I just want the fourth attachment (Dos, page2) to be like the second one (W32, page2).
DOS has a particular issue with the value 26. Apparently it is an end-of-file marker. So on a DOS system, it will not work the way you'd like. Thus my recommendation to skip it.
"One of the methods used by statists to destroy capitalism consists in establishing controls that tie a given industry hand and foot, making it unable to solve its problems, then declaring that freedom has failed and stronger controls are necessary." --Ayn Rand
Reply With Quote Quick reply to this message  
•
•
Join Date: Sep 2004
Posts: 11
Reputation: Anu is an unknown quantity at this point 
Solved Threads: 0
Anu Anu is offline Offline
Newbie Poster

Re: Prog to list ASCII codes (beginners' stuff)

 
0
  #10
Sep 25th, 2004
That was all I actually wanted to know. Thanks once again. ^^
Reply With Quote Quick reply to this message  
Reply
1 2

Quick Reply to Thread
This thread is more than three months old.
Perhaps start a new thread instead?
•
•
•
•
•
•
•
•
Message:
•
•
•
•



Other Threads in the C Forum
Thread Tools Search this Thread



* adobe ansi api array asterisks binarysearch calculate centimeter changingto char character cm convert copyimagefile cprogramme creafecopyofanytypeoffileinc createcopyoffile csyntax database directory feet fflush fgets file fork forloop frequency function givemetehcodez grade graphics gtkgcurlcompiling gtkwinlinux hacking highest histogram i/o inches infiniteloop input intmain() iso kernel keyboard km linked linkedlist linux linuxsegmentationfault list locate looping loopinsideloop. lowest match microsoft mqqueue mysql number oddnumber odf open opendocumentformat owf pattern pdf performance posix probleminc process program programming radix recv recvblocked repetition research reversing scanf scheduling segmentationfault send sequential socket socketprograming stack standard string systemcall threads turboc unix user variable voidmain() wab whythiscodecausesegmentationfault windows.h windowsapi
About Us | Contact Us | Advertise | DaniWeb | Acceptable Use Policy | RSS Feed

©2003 - 2009 DaniWeb® LLC