Funny looking part of constructor (at least for me as being greenhorn)

[BAriel]

Hello dear forum participants,
I keep on seeing things like
CComVariant(L"The Halden plant as ordered by Fibrotech"
being bloody beginner I am wondering what does capital L stand for ?
Is it some qualifier/hint ?
In positive case: For whom ?
In negative case: What is it then ?
Does some comprehensive list of such "qualifiers/hints" exist ?
In positive case : Where ?

What is the main idea behind these "qualifiers/hints" ?

Yours sincerely
Ariel Burbaickij

 

[JOLESEN]

CComVariant has a constructor with one argument : LPCOLESTR

LPCOLSTR is a pointer to a WCHAR (wchar_t).

wchar_t can contain UNICODE characters

'L' prefix to a string means the compiler will generate a wchar string (UNICODE).

Thus everything makes sense .... ok ?
/JOlesen

 

[BAriel]

'L' prefix to a string means the compiler will generate a wchar string (UNICODE).
Where do you know it from ?
Could you point me to some list of possible prefixes
and their meaning ?

Yours sincerely
Ariel Burbaickij

 

[JOLESEN]

From the compiler documentation :

'C++ Character constants'
(Search for character constants).

I do not wonder if you somehow feel lost/confused. When it comes to COM documentation, I feel that it is scattered 'all over the place'
A good thing is to search/browse the include-files installed with the compiler/SDK.
/JOlesen