Hi.

I compile whole project with -FcUTF8, but sometimes should be useful to define string constant with CP_NONE to prevent conversions.

Example:

DefaultSystemCodePage:=1250
variable s contains text with cp=1250
s := s + '#'; //conversion because '#' has cp=65001

Is possible to define '#' without cp?
Or is possible to do fast string concatenation without conversion?

Thanks
Petr

Am 14.12.2017 09:37 schrieb "Petr Kristan" :

Hi.

I compile whole project with -FcUTF8, but sometimes should be useful to define string constant with CP_NONE to prevent conversions.

Example:

DefaultSystemCodePage:=1250
variable s contains text with cp=1250
s := s + '#'; //conversion because '#' has cp=65001

Is possible to define '#' without cp?
Or is possible to do fast string concatenation without conversion?

A concatenation is done without conversion if all strings have the same code page. You can enforce the code page using SetCodePage() which has a parameter to not convert the string to that code page. You can retrieve the code page using StringCodePage().

See also:
https://www.freepascal.org/docs-html/rtl/system/setcodepage.html https://www.freepascal.org/docs-html/rtl/system/stringcodepage.html

Regards,
Sven