ASCII character with ASCII value 0 and 32

Hello friends,

I am new to programming. I just wish to know what are the characters represented by ASCII values 0 and 32.

In ASCII list which I dowloaded from internet it is written that ASCII character represented by value 0 is null character.

But when I checked it by printing the character ( making a C program), it seems to be space. But character represented by value 32 also seems to be space character.

Please clear my doubt.

Thanks a lot.
bye n take care.

> it seems to be space

I wouldn't rely on that. The reason ascii works to some extent is because the entire set can be represented by a byte, and zero bytes is meaningless in that context. Trying to print null and getting a space is purely a coincidence or an implementation detail. You could "print" zero bytes and put whatever on the screen really, like one of those box characters. Trying to print null bytes in shell programs usually wind up doing nothing but adding zero bytes to some sort of stream, and that don't show up at all in the programs that you use day to day.

http://www.asciitable.com/

Print out an ascii table with this code and it'll show all the ascii characters and their
values on stdout

Code:

---

#include <stdio.h>
#include <ctype.h>

int main(void)
{
    unsigned int i;
   
    /* print an ascii table */
    for (i = 0; i < 256; i++) {
          if (isascii(i))
              printf("&#37;d =%c, ", i, i);
          else
              printf("%d =., ", i);

            /* print 10 values on each line */
            if ((i % 10) == 0)
              printf("\n");
    }

    return 0;
}

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Quote:

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Originally Posted by hitesh_best

But when I checked it by printing the character ( making a C program), it seems to be space. But character represented by value 32 also seems to be space character.

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It isn't a space -- it is just "nothingness." This happens to LOOK like a space.