std::wcsstr
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Null-terminated wide strings
(C++11)
(C++11)(C++11)
Defined in header
<cwchar>
const wchar_t* wcsstr( const wchar_t* dest, const wchar_t* src );
wchar_t* wcsstr( wchar_t* dest, const wchar_t* src );
Finds the first occurrence of the wide string src in the wide string pointed to by dest. The terminating null characters are not compared.
Contents
[edit] Parameters
dest
-
pointer to the null-terminated wide string to examine
src
-
pointer to the null-terminated wide string to search for
[edit] Return value
Pointer to the first character of the found substring in dest, or a null pointer if no such substring is found. If src points to an empty string, dest is returned.
[edit] Example
Run this code
#include <clocale> #include <cwchar> #include <iostream> int main() { wchar_t const* origin = L"アルファ, ベータ, ガンマ, アルファ, ベータ, ガンマ."; wchar_t const* target = L"ベータ"; wchar_t const* result = origin; std::setlocale (LC_ALL, "en_US.utf8"); std::wcout << L"Substring to find: \"" << target << L"\"\n" << L"String to search: \"" << origin << L"\"\n\n"; for (; (result = std::wcsstr(result, target)) != nullptr; ++result) std::wcout << L"Found: \"" << result << L"\"\n"; }
Possible output:
Substring to find: "ベータ" String to search: "アルファ, ベータ, ガンマ, アルファ, ベータ, ガンマ." Found: "ベータ, ガンマ, アルファ, ベータ, ガンマ." Found: "ベータ, ガンマ."
[edit] See also
finds the first occurrence of the given substring
(public member function of
(public member function of
std::basic_string<CharT,Traits,Allocator>) [edit]
C documentation for wcsstr