wcsstr
From cppreference.com
C
Concurrency support (C11)
Null-terminated wide strings
(C95)
(C95)
(C95)
(C95)
(C95)
(C95)
(C99)
(C95)(C99)
(C99)(C95)(C99)
(C95)(C11)
(C95)(C11)
(C95)
(C95)(C95)
(C95)(C95)
(C95)
Defined in header
<wchar.h>
wchar_t *wcsstr( const wchar_t *dest, const wchar_t *src );
(1)
(since C95)
/*QWchar_t*/ *wcsstr( /*QWchar_t*/ *dest, const wchar_t *src );
(2)
(since C23)
1) Finds the first occurrence of the wide string
src in the wide string pointed to by dest. The terminating null characters are not compared.2) Type-generic function equivalent to (1). Let
T be an unqualified wide character object type.
- If
destis of type const T*, the return type is const wchar_t*. - Otherwise, if
destis of type T*, the return type is wchar_t*. - Otherwise, the behavior is undefined.
- If
[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 <stdio.h> #include <locale.h> #include <wchar.h> int main(void) { setlocale (LC_ALL, "ru_RU.UTF-8"); wchar_t str[5][64] = { L"Строка, где есть подстрока 'но'.", L"Строка, где такой подстроки нет.", L"Он здесь.", L"Здесь он.", L"Его нет." }; for (size_t i = 0; i < 5; ++i) { if (wcsstr(str[i], L"но")) { wprintf (L"%ls\n", str[i]); } } }
Output:
Строка, где есть подстрока 'но'.
[edit] References
- C11 standard (ISO/IEC 9899:2011):
- 7.29.4.5.6 The wcsstr function (p: 437)
- C99 standard (ISO/IEC 9899:1999):
- 7.24.4.5.6 The wcsstr function (p: 383)
[edit] See also
C++ documentation for wcsstr