integer to characters

[Alan]

I want to change a 3 digits integer to characters, how can i do that?

the 3 digits integer maybe 123, 23 or 3
I want to change the integer to "123", " 23" or " 3"

thx

[Karl Heinz Buchegger]

Alan wrote:

I want to change a 3 digits integer to characters, how can i do that?

the 3 digits integer maybe 123, 23 or 3
I want to change the integer to "123", " 23" or " 3"

You don't want to change anything.
You want to convert an integer into its textual representation.

char Buffer[20];
int Number = 123;
sprintf( Buffer, "%d", Number );

Also: When posting to alt.comp.lang.l earn.c-c++ always
indicate which language you need a solution for. There
we discuss C and C++. The C++ solution would be completely
different.

--
Karl Heinz Buchegger
kb******@gascad .at

[Rick]

Alan wrote:

I want to change a 3 digits integer to characters, how can i do that?

the 3 digits integer maybe 123, 23 or 3
I want to change the integer to "123", " 23" or " 3"

thx

char arr[4];
int val = 123;

arr[0] = '0' + val/100;
arr[1] = '0' + (val%100)/10;
arr[2] = '0' + val%10;
arr[3] = '\0';

printf("%s", arr);
Rick

[Alan]

"Karl Heinz Buchegger" <kb******@gasca d.at> ???
news:3F******** *******@gascad. at ???...

Alan wrote:

I want to change a 3 digits integer to characters, how can i do that?

the 3 digits integer maybe 123, 23 or 3
I want to change the integer to "123", " 23" or " 3"

You don't want to change anything.
You want to convert an integer into its textual representation.

char Buffer[20];
int Number = 123;
sprintf( Buffer, "%d", Number );

Is there any function same as sprintf() but write to file?
because I can't find a function called "fsprintf() "
thx

Also: When posting to alt.comp.lang.l earn.c-c++ always
indicate which language you need a solution for. There
we discuss C and C++. The C++ solution would be completely
different.

sorry, next time I will do so

[Karl Heinz Buchegger]

Alan wrote:

"Karl Heinz Buchegger" <kb******@gasca d.at> ???
news:3F******** *******@gascad. at ???...

Alan wrote:

I want to change a 3 digits integer to characters, how can i do that?

the 3 digits integer maybe 123, 23 or 3
I want to change the integer to "123", " 23" or " 3"

You don't want to change anything.
You want to convert an integer into its textual representation.

char Buffer[20];
int Number = 123;
sprintf( Buffer, "%d", Number );

Is there any function same as sprintf() but write to file?
because I can't find a function called "fsprintf() "
thx

What for?
Either fprintf() does what you need
or you first print to a character buffer and then
write that character buffer to the file.

In any case: there is no need for fsprintf

--
Karl Heinz Buchegger
kb******@gascad .at

[Robert W Hand]

On Wed, 22 Oct 2003 19:12:21 +1000, Rick <rrquick@nosp am-com> wrote:

Alan wrote:

I want to change a 3 digits integer to characters, how can i do that?

the 3 digits integer maybe 123, 23 or 3
I want to change the integer to "123", " 23" or " 3"

thx

char arr[4];
int val = 123;

arr[0] = '0' + val/100;
arr[1] = '0' + (val%100)/10;
arr[2] = '0' + val%10;
arr[3] = '\0';

printf("%s", arr);

What is the plan if the three-digit integer is negative?

Best wishes,

Bob

[Stefan Höhne]

Hi,
"Rick" <rrquick@nosp am-com> wrote in message
news:3f******** @clarion.carno. net.au...

Alan wrote:

I want to change a 3 digits integer to characters, how can i do that?

the 3 digits integer maybe 123, 23 or 3
I want to change the integer to "123", " 23" or " 3"

thx

char arr[4];
int val = 123;

arr[0] = '0' + val/100;
arr[1] = '0' + (val%100)/10;
arr[2] = '0' + val%10;
arr[3] = '\0';

printf("%s", arr);

this fails the OPs spec.

Why not use the standard library for things it was
made for?

Regards,
Stefan.

[Alan]

"Stefan Höhne" <do************ ********@127.0. 0.1> ¦b¶l¥ó
news:bn******** **@news1.wdf.sa p-ag.de ¤¤¼¶¼g...

Hi,

"Rick" <rrquick@nosp am-com> wrote in message
news:3f******** @clarion.carno. net.au...

Alan wrote:

I want to change a 3 digits integer to characters, how can i do that?

the 3 digits integer maybe 123, 23 or 3
I want to change the integer to "123", " 23" or " 3"

thx
char arr[4];
int val = 123;

arr[0] = '0' + val/100;
arr[1] = '0' + (val%100)/10;
arr[2] = '0' + val%10;
arr[3] = '\0';

printf("%s", arr);

this fails the OPs spec.

I don't understand, in what situation will it fail ?

Why not use the standard library for things it was
made for?

what is the standard library and how to do that ?
thx

[Stefan Höhne]

Hi,

"Alan" <al************ *@hotmail.com> wrote in message
news:bn******** **@news.hgc.com .hk...

"Stefan Höhne" <do************ ********@127.0. 0.1> ¦b¶l¥ó
news:bn******** **@news1.wdf.sa p-ag.de ¤¤¼¶¼g...

Hi,

"Rick" <rrquick@nosp am-com> wrote in message
news:3f******** @clarion.carno. net.au...

Alan wrote:

> I want to change a 3 digits integer to characters, how can i do that? >
> the 3 digits integer maybe 123, 23 or 3
> I want to change the integer to "123", " 23" or " 3"
>
> thx

char arr[4];
int val = 123;

arr[0] = '0' + val/100;
arr[1] = '0' + (val%100)/10;
arr[2] = '0' + val%10;
arr[3] = '\0';

printf("%s", arr);

this fails the OPs spec.

I don't understand, in what situation will it fail ?

for val=3. This solution would compute "003", the OP
(=you) explicitely wanted " 3". Of course this is easily
adopted, but needs extra logic.

Why not use the standard library for things it was
made for?

what is the standard library and how to do that ?
thx

The standard library consists of all those basic
functionality you use everyday: malloc(), printf(),
rand(), sin(), is_alpha(), ...

In this case, sprintf() would be the tool to use, as
Karl suggested.

HTH,
Stefan.

[Jirka Klaue]

Stefan Höhne wrote:
....

The standard library consists of all those basic
functionality you use everyday: malloc(), printf(),
rand(), sin(), is_alpha(), ...

I never heard of or used is_alpha().
Well, I never used isalpha as well. :-)

Jirka