[fpc-devel] Unicode and UTF8String
fpc at mfriebe.de
Mon Dec 1 13:54:22 CET 2008
Florian Klaempfl wrote:
> Felipe Monteiro de Carvalho schrieb:
>> On Mon, Dec 1, 2008 at 10:13 AM, Florian Klaempfl
>> <florian at freepascal.org> wrote:
>>> No, it will be RTLString which type depends on the OS.
>> Ok, so code would be something like this:
>> OSString: RTLString;
>> MyString: UTF8String;
>> OSString := SomeRTLRoutine;
>> MyString := OSString;
> Why would you do this and not
> MyString := SomeRTLRoutine;
If I understand that right, this may cause some overhead, that in
some(few) cases is not needed.
If I write an application using stringtype "X" (WideString for
example), then in the above "MyString" would be WideString.
The in/ouput for SomeRTLRoutine are RtlString, they are OS depended. If
I compile for a OS using "UTF8" then that means for each and every call,
it needs a string conversation.
Of course I understand, *if* some RTLFunction calls the OS, then the
string must be converted. But if I simply want to extract the drive
letter, or trim the path, and get the file name, without actually
accessing the file or OS? Should it be possible to skip converting?
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