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wcsstr

From cppreference.com
< c‎ | string‎ | wide
Defined in header <wchar.h>
wchar_t* wcsstr( const wchar_t* dest, const wchar_t* src );
(since C95)

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

#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

(C95)
finds the first occurrence of a wide character in a wide string
(function) [edit]
finds the last occurrence of a wide character in a wide string
(function) [edit]