Re: Working with strings in c++
"Paul" <Paul@discussions.microsoft.com> wrote in message
news:AD715E93-B224-4621-AEB1-A80B050CAC07@microsoft.com...
Hi. I'm a C++ newbie. I need to split the following variable into
substrings,
preferrably into variables of the same type (CString). How do I do this in
Visual C++?
const CString& myStr = "val1;val2;val3";
This is a rather strange piece of code. Courtesy of the presence of the &,
myStr is a reference to a CString rather than a CString object. You then
assign a string literal, "val1;val2;val3", to it. One might wonder if this
will work and, if so, why.
It does work because, under the hood, the compiler creates an unnamed
temporary CString object, which it initialises with "val1;val2;val3" using
the CString constructor. The CString reference, myStr, is then bound to this
unnamed temporary, which makes it not-so-temporary.
This is *not* code that a C++ newbie should be using. Drop the & and just
declare
const CString myStr = "val1;val2;val3";
Better yet, make it
const CString myStr("val1;val2;val3");
This declares a CString object called myStr and initialises it with
"val1;val2;val3".
To split the string up into substrings, you need to call the member function
Tokenize. This is documented in the MSDN library.
--
John Carson