converting numerical values to irrlicht strings

[rogerdv]

How can i convert any numerical value to an irrlicht useable string and maybe concatenate it to another string?

[Gorgon Zola]

hi

string manipulation is kind of strange if you're comming from basic or java.

check out sprintf and swprintf documentation for char strings and wchar strings....

cheers
tom

[rogerdv]

Yes, i was using something like that, but I got weird results and crashes when try to concatenate strings. i was wondering if irrlicht strings implement some kind of conversion for this.

[Gorgon Zola]

not that i know.

where you must take care is that you can only concatenate wchar strings with wchar strings and char strings with char strings. otherwise you'll get alot of strange symbols printed out.

this should work:

wchar_t myWString=L"Hi";
float myFloat=6.23f;
wchar_t buf[255];
swprintf(buf,"%f", myFloat); // buf == L"6.23"

swprintf(buf,"%f %s",myFloat,myWString);// buf == L"6.23 Hi"

swprintf(buf,"%f %s",3.14,L"Hello"); // buf == L"3.14 Hello"


cheers
tom

[R00mpel]

To convert numerical values into strings, you can also use _itoa, _itow, _ecvt, _fcvt and some other functions. See documentation for further information...

[rogerdv]

not that i know.

where you must take care is that you can only concatenate wchar strings with wchar strings and char strings with char strings. otherwise you'll get alot of strange symbols printed out.

this should work:

wchar_t myWString=L"Hi";
float myFloat=6.23f;
wchar_t buf[255];
swprintf(buf,"%f", myFloat); // buf == L"6.23"

swprintf(buf,"%f %s",myFloat,myWString);// buf == L"6.23 Hi"

swprintf(buf,"%f %s",3.14,L"Hello"); // buf == L"3.14 Hello"

Well, doesnt works. After some trial and error and man, got this:
wchar_t buf[255];
swprintf(buf, 30,L"%s %i", L"Strength ",20); // Strength
statsn->setText(buf);

But this only displays "S 20" instead of "Strength 20"

[Gorgon Zola]

Yes, right,
I thought I might be missing something in that swprintf function call

anyway this works in my app:

swprintf(tmp, 1024, L"%s (fps:%d, primitives:%d)",L"TestApp", fps, primitives);

I don't really see why your code doesn't work seems ok to me.

[rogerdv]

It works!
Thanks a lot.

[warui]

To convert numerical values into strings, you can also use _itoa, _itow, _ecvt, _fcvt and some other functions. See documentation for further information...

Most of them are not statndard C / C++ functions and might not be included in all implamentations. And AFAIR they are only wrappers for sprintf() or similar function.

[schick]

you might want to have a look at boost. http://www.boost.org there are some lexical cast libraries.