how to transform decial point "3.15" to "3,15" comma?

Hello everyone, I am making a registry of real amounts,
and need trasformar fractional numbers,
so print coretamente.

there is some routine that do this?

> how to transform decial point "3.15" to "3,15" comma?
>
Hello everyone, I am making a registry of real amounts, and need trasformar fractional numbers, so print correctly. there is some routine that do this?

On Mon, 15 Sep 2014 22:47:32 +0000
Cassio Butrico via Digitalmars-d-learn
<digitalmars-d-learn@puremagic.com> wrote:

> > how to transform decial point "3.15" to "3,15" comma?
> >
> Hello everyone, I am making a registry of real amounts, and need trasformar fractional numbers, so print correctly. there is some routine that do this?
why don't do just this:

  void main () {
    import std.stdio;
    import std.string;
    import std.array;
    string s = "%s".format(3.14).replace(".", ",");
    writeln(s);
  }

but i believe that separator is locale-dependend, so maybe you should just change locale at program startup?

On Monday, 15 September 2014 at 22:45:50 UTC, Cassio Butrico wrote:
> how to transform decial point "3.15" to "3,15" comma?
>
> Hello everyone, I am making a registry of real amounts,
> and need trasformar fractional numbers,
> so print coretamente.
>
> there is some routine that do this?

Is the , (comma) the system decimal separator? if so, you can use C intero and include locale.h header (in D, the respective module) call setlocale(LC_NUMERIC, "") function and then printf("%g", 3.5) will output (if decimal separator is the comma): 3,5

I haven't tested it in D but I think D's writefln() will behave exactly same as C's printf().. but it didn't you're free to call C's printf()

On Monday, 15 September 2014 at 23:17:51 UTC, AsmMan wrote:
> On Monday, 15 September 2014 at 22:45:50 UTC, Cassio Butrico wrote:
>> how to transform decial point "3.15" to "3,15" comma?
>>
>> Hello everyone, I am making a registry of real amounts,
>> and need trasformar fractional numbers,
>> so print coretamente.
>>
>> there is some routine that do this?
>
> Is the , (comma) the system decimal separator? if so, you can use C intero and include locale.h header (in D, the respective module) call setlocale(LC_NUMERIC, "") function and then printf("%g", 3.5) will output (if decimal separator is the comma): 3,5
>
> I haven't tested it in D but I think D's writefln() will behave exactly same as C's printf().. but it didn't you're free to call C's printf()

The code is the following:

import std.stdio;
import std.c.locale;

void main()
{
	setlocale(LC_NUMERIC, "");
	writeln(3.5); // 3,5
}

You can change/see current decimal separator using (assuming
Windows) http://www.softwareok.com/?seite=faq-Win-7&faq=78

On Monday, 15 September 2014 at 23:24:13 UTC, AsmMan wrote:
> On Monday, 15 September 2014 at 23:17:51 UTC, AsmMan wrote:
>> On Monday, 15 September 2014 at 22:45:50 UTC, Cassio Butrico wrote:
>>> how to transform decial point "3.15" to "3,15" comma?
>>>
>>> Hello everyone, I am making a registry of real amounts,
>>> and need trasformar fractional numbers,
>>> so print coretamente.
>>>
>>> there is some routine that do this?
>>
>> Is the , (comma) the system decimal separator? if so, you can use C intero and include locale.h header (in D, the respective module) call setlocale(LC_NUMERIC, "") function and then printf("%g", 3.5) will output (if decimal separator is the comma): 3,5
>>
>> I haven't tested it in D but I think D's writefln() will behave exactly same as C's printf().. but it didn't you're free to call C's printf()
>
> The code is the following:
>
> import std.stdio;
> import std.c.locale;
>
> void main()
> {
> 	setlocale(LC_NUMERIC, "");
> 	writeln(3.5); // 3,5
> }
>
Okay,

Thanks everyone, that was it

On Monday, 15 September 2014 at 23:43:47 UTC, Cassio Butrico wrote:
> On Monday, 15 September 2014 at 23:24:13 UTC, AsmMan wrote:
>> On Monday, 15 September 2014 at 23:17:51 UTC, AsmMan wrote:
>>> On Monday, 15 September 2014 at 22:45:50 UTC, Cassio Butrico wrote:
>>>> how to transform decial point "3.15" to "3,15" comma?
>>>>
>>>> Hello everyone, I am making a registry of real amounts,
>>>> and need trasformar fractional numbers,
>>>> so print coretamente.
>>>>
>>>> there is some routine that do this?
>>>
>>> Is the , (comma) the system decimal separator? if so, you can use C intero and include locale.h header (in D, the respective module) call setlocale(LC_NUMERIC, "") function and then printf("%g", 3.5) will output (if decimal separator is the comma): 3,5
>>>
>>> I haven't tested it in D but I think D's writefln() will behave exactly same as C's printf().. but it didn't you're free to call C's printf()
>>
>> The code is the following:
>>
>> import std.stdio;
>> import std.c.locale;
>>
>> void main()
>> {
>> 	setlocale(LC_NUMERIC, "");
>> 	writeln(3.5); // 3,5
>> }
>>
> Okay,
>
> Thanks everyone, that was it

you're welcome! :)