convert int to char

[John Carroll]

Does anyone have a function or procedure for converting integers to
character strings?

Thank you,
John

[Keith Thompson]

Chris Croughton <ch***@keristor .net> writes:

On Mon, 11 Apr 2005 19:17:45 +0200, Emmanuel Delahaye
<em***@YOURBRAn oos.fr> wrote:

Neil Kurzman wrote on 11/04/05 :

itoa() exists, I assume it is non-standard??
If it not standard, it doesn't exist :-)

That's one of the stupid attitudes which encourages people to label
comp.lang.c as a bunch of ego-wankers.

I agree that the attitude can go a bit too far sometimes. For
example, it's absurd to assert that the open() and close() functions
don't exist. They do exist as part of the POSIX standard (and a
non-POSIX program is free to define functions, or other entities, with
the same names). But the POSIX-specific functions are off-topic here
in comp.lang.c.
Of course itoa() exists on many systems and in many program sources. It
simply isn't On Topic for this newsgroup, and can't be used portably.

Does it really? I just checked several systems I have access to; none
of them define an itoa() function.

--
Keith Thompson (The_Other_Keit h) ks***@mib.org <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this.

[CBFalconer]

Christopher Benson-Manica wrote:

Chris Croughton <ch***@keristor .net> spoke thus:

Of course itoa() exists on many systems and in many program
sources. It simply isn't On Topic for this newsgroup, and can't
be used portably.

But can it be written portably? That's a valid question here.

I'll answer that as soon as you define exactly what it does. I put
up a valid implementation yesterday or so, didn't you like it? I
believe it reliably converted an 'i' to an 'a', and was completely
portable.

--
"If you want to post a followup via groups.google.c om, don't use
the broken "Reply" link at the bottom of the article. Click on
"show options" at the top of the article, then click on the
"Reply" at the bottom of the article headers." - Keith Thompson

[Christopher Benson-Manica]

CBFalconer <cb********@yah oo.com> spoke thus:

I'll answer that as soon as you define exactly what it does. I put
up a valid implementation yesterday or so, didn't you like it? I
believe it reliably converted an 'i' to an 'a', and was completely
portable.

Sorry for implying otherwise...

--
Christopher Benson-Manica | I *should* know what I'm talking about - if I
ataru(at)cybers pace.org | don't, I need to know. Flames welcome.

[Chris Croughton]

On Mon, 11 Apr 2005 21:28:08 GMT, Keith Thompson
<ks***@mib.or g> wrote:

I agree that the attitude can go a bit too far sometimes. For
example, it's absurd to assert that the open() and close() functions
don't exist. They do exist as part of the POSIX standard (and a
non-POSIX program is free to define functions, or other entities, with
the same names). But the POSIX-specific functions are off-topic here
in comp.lang.c.

Yes, exactly. It's one thing to say "Those functions are off-topic
here, because they aren't part of Standard C, try somewhere like
comp.unix.progr ammer", and a different one to say a blanket "it doesn't
exist". The latter will just get the OP's response "Yes it does!".

Of course itoa() exists on many systems and in many program sources. It
simply isn't On Topic for this newsgroup, and can't be used portably.

Does it really? I just checked several systems I have access to; none
of them define an itoa() function.

Borland defines it for Win32, and says under 'portability' that it's a
Win32 function. I remember it being on DOS as well. I've also seen it
re-implemented in code for *ix software, so it 'exists' on those systems
even if not in a system library.

Chris C

[Emmanuel Delahaye]

Chris Croughton wrote on 11/04/05 :

On Mon, 11 Apr 2005 19:17:45 +0200, Emmanuel Delahaye
<em***@YOURBRAn oos.fr> wrote:

Neil Kurzman wrote on 11/04/05 :

itoa() exists, I assume it is non-standard??

If it not standard, it doesn't exist :-)

That's one of the stupid attitudes which encourages people to label
comp.lang.c as a bunch of ego-wankers.

A serious lack of humour... Get a life...

--
Emmanuel
The C-FAQ: http://www.eskimo.com/~scs/C-faq/faq.html
The C-library: http://www.dinkumware.com/refxc.html

..sig under repair

[Kenny McCormack]

In article <mn************ ***********@YOU RBRAnoos.fr>,
Emmanuel Delahaye <em***@YOURBRAn oos.fr> wrote:

Chris Croughton wrote on 11/04/05 :

On Mon, 11 Apr 2005 19:17:45 +0200, Emmanuel Delahaye
<em***@YOURBRAn oos.fr> wrote:

Neil Kurzman wrote on 11/04/05 :
itoa() exists, I assume it is non-standard??

If it not standard, it doesn't exist :-)

That's one of the stupid attitudes which encourages people to label
comp.lang.c as a bunch of ego-wankers.

A serious lack of humour... Get a life...

But that *is* clc.

A sense of humor is OT here. And, as with most OT posts, the regulars will
generally be more than willing to supply names of other newsgroups where
what you seek is on topic. For example, I suggest: alt.folklore.ur ban.

[Robert Maas, see http://tinyurl.com/uh3t]

> From: "John Carroll" <or*******@yaho o.com>

Does anyone have a function or procedure for converting integers to
character strings?

Your question is hopelessly vague. There are all sorts of mappings from
integers to character strings. Here are just a few (with quote marks
omitted):

Arabic numerals:
Decimal: 42
Octal: 52
Hexadecimal: 2A
Binary: 101010
Unary with stop bit: 111111111111111 111111111111111 1111111111110
Tally:
Original: IIIII IIIII IIIII IIIII IIIII IIIII IIIII IIIII II
Old: <http://www.rawbw.com/~rem/AsciiArt/TallyOldAA.txt>
New: <http://www.rawbw.com/~rem/AsciiArt/TallyNewAA.txt>
Roman numerals:
Old: XXXXII
New: XLII
Cardinal:
English: forty-two
German: zwei und vierzig (Note: AltaVista Babelfish gets this wrong!)
French: quarante deux
Spanish: cuarenta dos
Portuguese: quarenta dois
Ordinal:
English: forty-second
French: quarante seconde
Spanish: cuarenta segundos
Portuguese: quarenta segundos
German: (Babelfish says vierzig zweites, but I don't believe it's correct.)
Traditional base 12:
English: three dozen and six
French: trois douzaines et six
German: drei Dutzend und sechs
Spanish: tres docenas y seises
Traditional by Abraham Lincoln:
English: two score and two

So do you want a single function capable of all those conversions, or what?

Oh, you just want a single character? That's not possible because the
range of integers is larger than the range allowed for a single
character, whether a single byte (US-ASCII or Latin-1) or double byte
(subset of UniCode). If you restrict the range of integers to what
will fit in a single byte, then you have your choice of Latin-1 or
several other system-dependent codes. If you restrict the range of
integers to what will fit in 7 bits, you have your choice of US-ASCII
or EBCDIC. (C provides support only for US-ASCII, via a "cast".) If you
restrict the range of integers to 0 thru 35, you have extended
IBM-hexadecimal: 0123...9ABCDE.. .XYZ. If you restrict the range to only
0 thru 15, C provides support via sprintf(&ch, "%x", intval).

[Anonymous 7843]

In article <RE************ ***@Yahoo.Com>,
Robert Maas, see http://tinyurl.com/uh3t <re*****@Yahoo. Com> wrote:

From: "John Carroll" <or*******@yaho o.com>
Does anyone have a function or procedure for converting integers to
character strings?

Your question is hopelessly vague. There are all sorts of mappings from
integers to character strings. Here are just a few ...

and the void would be calling
--
7842++

[SM Ryan]

re*****@Yahoo.C om (Robert Maas, see http://tinyurl.com/uh3t) wrote:
# > From: "John Carroll" <or*******@yaho o.com>
# > Does anyone have a function or procedure for converting integers to
# > character strings?

char b[sizeof(int)*CHA R_BIT/3+1];
sprintf(b,"%d", int_value);

The formatted integer is in b.

--
SM Ryan http://www.rawbw.com/~wyrmwif/
GERBILS
GERBILS
GERBILS

[Walter Roberson]

In article <RE************ ***@Yahoo.Com>,
Robert Maas, see http://tinyurl.com/uh3t <re*****@Yahoo. Com> wrote:

Your question is hopelessly vague. There are all sorts of mappings from
integers to character strings. Here are just a few Traditional base 12:
English: three dozen and six

It seems to me that more traditional would be
"three and a half dozen"

--
History is a pile of debris -- Laurie Anderson