std::wcsstr

C++

Language

Headers

Freestanding and hosted implementations

Named requirements

Language support library

Concepts library (C++20)

Diagnostics library

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

Strings library

Null-terminated strings

Byte strings

Multibyte strings

Wide strings

Classes

basic_string

basic_string_view (C++17)

char_traits

Null-terminated wide strings

Functions
Character manipulation
iswalnum iswalpha iswlower iswupper iswdigit iswxdigit iswblank (C++11) wctype iswctype	iswcntrl iswgraph iswspace iswprint iswpunct towlower towupper wctrans towctrans
Conversions to numeric formats
wcstolwcstoll (C++11) wcstoulwcstoull (C++11)	wcstofwcstodwcstold (C++11)(C++11) wcstoimaxwcstouimax (C++11)(C++11)
String manipulation
wcslen wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp	wcsxfrm wcschr wcsrchr wcspbrk wcsspn wcscspn wcsstr wcstok
Array manipulation
wmemcpy
wmemmove
wmemcmp
wmemchr
wmemset

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.

Parameters

dest	-	pointer to the null-terminated wide string to examine
src	-	pointer to the null-terminated wide string to search for

Return value

Pointer to the first character of the found substring in dest, or NULL if no such substring is found. If src points to an empty string, dest is returned.

See also

find	find characters in the string (public member function of std::basic_string)
strstr	finds the first occurrence of a substring of characters (function)
wcschr	finds the first occurrence of a wide character in a wide string (function)
wcsrchr	finds the last occurrence of a wide character in a wide string (function)