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Views: 6863 | Replies: 11
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Join Date: Sep 2004
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Newbie Poster
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:
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.~
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:
# include <iostream.h>
# include <conio.h>
main()
{
int i, j, ip, ipp;
float k, l;
char zeichen;
for (i=1;i<=254;i++)
{
zeichen=i;
cout<<"\n"<<i<<" - "<<zeichen;
j=1;
for (j=1;j<=25;j++)
{
k=1.0*i/20;
l=1.0*j;
if (k==l)
{
ip=i+1;
ipp=i+20;
if (i<=240) cout<<"\n\n(Press any key --> "<<ip<<" to "<<ipp<<" )";
getch();
clrscr();
};
}
}
getch();
}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.~
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Join Date: Apr 2004
Posts: 3,449
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Skip 26. Or better yet, skip printing everything non-printable.
#include <stdio.h>
#include <ctype.h>
int main(void)
{
int i;
for ( i = 0; i < 256; ++i )
{
putchar(isprint(i) ? i : '.');
putchar(i % 16 == 15 ? '\n' : ' ');
}
return 0;
}
/* my output
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
! " # $ % & ' ( ) * + , - . /
0 1 2 3 4 5 6 7 8 9 : ; < = > ?
@ 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 [ \ ] ^ _
` 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 { | } ~ .
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
*/
Last edited by Dave Sinkula : Sep 24th, 2004 at 5:45 pm. Reason: Added code.
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Newbie Poster
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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 &&...
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[Oops. I see your reply beat my edit.]
I'd use isprint.
I'd use isprint.
#include <stdio.h>
#include <ctype.h>
int main(void)
{
int i;
for ( i = 0; i < 128; ++i )
{
putchar(isprint(i) ? i : '.');
putchar(i % 32 == 31 ? '\n' : ' ');
}
return 0;
}
/* my output
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ?
@ 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 [ \ ] ^ _
` 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 { | } ~ .
*/ •
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Join Date: Sep 2004
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Newbie Poster
I see, thanks again.
But seeing this...
The output under Win32 is like:
And so on, so...
Aint I able to display the 255 ones of those under Dos?
But seeing this...
The output under Win32 is like:
1 - ☺ 2 - ☻ 3 - ♥ 4 - ♦ 5 - ♣ 6 - ♠ 7 - 8 - 9 - 10 - 11 - ♂ 12 - ♀ 13 - 14 - ♫ 15 - ☼ 16 - ► 17 - ◄ 18 - ↕ 19 - ‼ 20 - ¶ 21 - §
Aint I able to display the 255 ones of those under Dos?
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Join Date: Sep 2004
Location: Overflow State
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C Programmer
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.
int ispunct(int c);
» This function returns nonzero if c is any of the following or other implementation-defined punctuation character:
Hope this helps,
- Stack Overflow
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
» 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 126Hope this helps,
- Stack Overflow
Last edited by Stack Overflow : Sep 24th, 2004 at 7:15 pm. Reason: More detailed information
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Newbie Poster
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).
See the attachments, I just want the fourth attachment (Dos, page2) to be like the second one (W32, page2).
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Originally Posted by Anu
See the attachments, I just want the fourth attachment (Dos, page2) to be like the second one (W32, page2).
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Newbie Poster
That was all I actually wanted to know. Thanks once again. ^^
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Join Date: Sep 2004
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Newbie Poster
Just wanted to say, I just skipped all non-printables using an int array and it works just as it's supposed to.
Might be getting annoying by the time, saying it in every post, but thanks again. Nice board you got here, I -as a very beginner- learned a lot of useful stuff by just reading some threads. -which also saved you e.g. another "void main <--> int main ?" thread- :mrgreen:
Might be getting annoying by the time, saying it in every post, but thanks again. Nice board you got here, I -as a very beginner- learned a lot of useful stuff by just reading some threads. -which also saved you e.g. another "void main <--> int main ?" thread- :mrgreen:
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