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 C2664: 'std::basic_string<_Elem,_Traits,_Ax>::basic_string(const std::basic_string<_Elem,_Traits,_Ax> &)' : cannot convert parameter 1 from 'const char [8]' to 'const std::basic_string<_Elem,_Traits,_Ax> &' D:...\TestModule1.cpp 28 1 TestModule1 After searching the web I read that I should define it as: std::wstring st = L"SomeText"; // Notice the "L"

I have programmed some code but there is some problem. In this codes i am trying to convert string to wstring. But this string have "█" characters. This character have 219 ascii code. This conversion getting error. In my code: string strs= "█and█something else"; wstring wstr(strs.begin(),strs.end()); After debugging, I am getting result like this ?and?something else How do I correct this problem? Thanks... Kerrek SB The C-library solution for converting between the system's narrow and wide encoding use the mbsrtowcs and wcsrtombs functions from the <cwchar> header. I've spelt this out in this

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 normal characters (which is how utf-8 works). I'd like to create this utf-8 string from wstring representation for library I use in my code. Does anybody know how to do it? I already tried this: locale mylocale("cs_CZ.utf-8"); mbstate_t mystate; wstring mywstring = L"čřžýáí"; const codecvt<wchar_t,char,mbstate_t>& myfacet = use_facet<codecvt<wchar_t

How can I read a Unicode (UTF-8) file into wstring (s) on the Windows platform? With C++11 support, you can use std::codecvt_utf8 facet which encapsulates conversion between a UTF-8 encoded byte string and UCS2 or UCS4 character string and which can be used to read and write UTF-8 files, both text and binary. In order to use facet you usually create locale object that encapsulates culture-specific information as a set of facets that collectively define a specific localized environment. Once you have a locale object, you can imbue your stream buffer with it: #include <sstream> #include <fstream

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 various answers and most suggest using Boost which is not an option in my case. Additionally, I need to support std::wstring / wchar_t . Any ideas? Kirill V. Lyadvinsky You could use std::search with a custom predicate. #include <locale> #include <iostream> #include <algorithm> using namespace std; // templated version of my_equal so it could work