[RESOLVED] int to ASCII..

How would I go about converting an integer to it's equivalent ASCII value?

itoa() in stdlib.h ?

If you just want to convert a single digit (0-9), do this

char character=(char)(digit+48);

Does that return the string representation of a number (ie "65"), or for a value like 65 return the equivalent ASCII character, "A"?

All characters are represented as numbers in a computer -

char can be treated as a number (unsigned: 1-255) (signed -127 -127)or whatever the ASCII designation for the char is. Internally it is still a number.

Code:

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char s;
for(s=65;s<91;s++) printf(" %c \n",s);

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And you can convert any integer that is <255 to char. Many character functions like getc() actually use integers. Not char.
char and int are interchangeable for a lot of functions.

Quote:

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Originally posted by xuralarux
Does that return the string representation of a number (ie "65"), or for a value like 65 return the equivalent ASCII character, "A"?

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I think someone else had shown this piece of code here before.:D

cout<<(int)('A')<<endl;//65

cout<<(char)(65)<<endl;//'A' character

[edit]Forget what I said here. I was tired.[/edit]

For a long number, it's sprintf (_itoa is an MS extension).

Quote:

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Originally posted by transcendental
I think someone else had shown this piece of code here before.:D

cout<<(int)('A')<<endl;//65

cout<<(char)(65)<<endl;//'A' character

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Ok, so really as long as you can get an int, you can just use a (char) cast to get the equivalent ASCII character... And here I was getting the idea that doing number <-> ASCII stuff was easier in VB! Now that I'm kinda getting the hang of C++, I don't think I wanna go back to Micro$haft stuff! Well, mebbe if a juicy position as a SQL DB admin popped up, but other than that... :rolleyes: :D

Quote:

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Originally posted by CornedBee
BTW it's not + 48 but either + 0x48 or + 65 or (best) + 'A'.

For a long number, it's sprintf (_itoa is an MS extension).

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BTW it's not + 48 but either + 0x41 or + 65 or (best) + 'A'.

Anyway I'm really referring to 48. 48 is the ascii no for '0' since the thread title is 'int to ASCII'.

Oh yeah, stupid me.


It was 2 AM...

Thanks for the help all, got the program done.