wcsstr
From cppreference.com
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Defined in header
<wchar.h>
|
||
|
wchar_t
*
wcsstr
(
const
wchar_t
*
dest,
const
wchar_t
*
src
)
;
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(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
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 a null pointer if no such substring is found. If
src
points to an empty string,
dest
is returned.
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'.
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)
See also
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(C95)
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finds the first occurrence of a wide character in a wide string
(function) |
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(C95)
|
finds the last occurrence of a wide character in a wide string
(function) |
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C++ documentation
for
wcsstr
|
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