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Questions tagged [wstring]

C++ standard library class to hold strings with wide characters. Behaves differently on Windows vs. Linux.

C++ standard library class to hold strings with wide characters. On Linux, it holds 4-byte characters; while on Windows, it holds 2-byte characters.

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std::wstring VS std::string

I am not able to understand the differences between std::string and std::wstring. I know wstring supports wide characters such as Unicode characters. I have got the following questions: When should I use std::wstring over std::string? Can…
Appu
269
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How to convert wstring into string?

The question is how to convert wstring to string? I have next example : #include #include int main() { std::wstring ws = L"Hello"; std::string s( ws.begin(), ws.end() ); //std::cout <<"std::string = …
BЈовић
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C++ Convert string (or char*) to wstring (or wchar_t*)

string s = "おはよう"; wstring ws = FUNCTION(s, ws); How would i assign the contents of s to ws? Searched google and used some techniques but they can't assign the exact content. The content is distorted.
Samir
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Case insensitive std::string.find()

I am using std::string's find() method to test if a string is a substring of another. Now I need case insensitive version of the same thing. For string comparison I can always turn to stricmp() but there doesn't seem to be a stristr(). I have found…
wpfwannabe
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What's "wrong" with C++ wchar_t and wstrings? What are some alternatives to wide characters?

I have seen a lot of people in the C++ community(particularly ##c++ on freenode) resent the use of wstrings and wchar_t, and their use in the windows api. What is exactly "wrong" with wchar_t and wstring, and if I want to support…
Ken Li
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How to initialize and print a std::wstring?

I had the code: std::string st = "SomeText"; ... std::cout << st; and that worked fine. But now my team wants to move to wstring. So I tried: std::wstring st = "SomeText"; ... std::cout << st; but this gave me a compilation error: Error 1 error…
Roee Gavirel
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Read Unicode UTF-8 file into wstring

How can I read a Unicode (UTF-8) file into wstring(s) on the Windows platform?
Abdelwahed
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Convert wstring to string encoded in UTF-8

I need to convert between wstring and string. I figured out, that using codecvt facet should do the trick, but it doesn't seem to work for utf-8 locale. My idea is, that when I read utf-8 encoded file to chars, one utf-8 character is read into two…
Trakhan
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How to portably write std::wstring to file?

I have a wstring declared as such: // random wstring std::wstring str = L"abcàdëefŸg€hhhhhhhµa"; The literal would be UTF-8 encoded, because my source file is. [EDIT: According to Mark Ransom this is not necessarily the case, the compiler will…
user1481860
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4 answers

How to convert std::wstring to LPCTSTR in C++?

I have Windows registry key value in wstring format. Now I want to pass it to this code (first argument - path to javaw.exe): std::wstring somePath(L"....\\bin\\javaw.exe"); if (!CreateProcess("C:\\Program Files\\Java\\jre7\\bin\\javaw.exe",…
Ernestas Gruodis
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How can I get the byte size of std::wstring?

I am using std::wstring as my Unicode style string. Now I want to get the byte size of a wstring. If I use size() method of wstring, I just get the total number of chars in my wstring. But the byte should be size() * 2. Is there an official way…
Hooch
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Best way to convert std::wstring to QString

I'm currently working on a larger project, where the "logic" is implemented in standard C++ with all strings being handled with std::wstring and the UI part is implemented using Qt and thus necessarily QString (Bonus question: is this true?). What…
mort
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Confused about C++'s std::wstring, UTF-16, UTF-8 and displaying strings in a windows GUI

I'm working on a english only C++ program for Windows where we were told "always use std::wstring", but it seems like nobody on the team really has much of an understanding beyond that. I already read the question titled "std::wstring VS…
Dave
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What is the optimal multiplatform way of dealing with Unicode strings under C++?

I know that there are already several questions on StackOverflow about std::string versus std::wstring or similar but none of them proposed a full solution. In order to obtain a good answer I should define the requirements: multiplatform usage,…
sorin
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Check if std::wstring is null or empty

How to check if an std::wstring is null or empty?
subs
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