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std::wcsrchr(3) C++ Standard Libary std::wcsrchr(3)

NAME

std::wcsrchr - std::wcsrchr

Synopsis


Defined in header <cwchar>
const wchar_t* wcsrchr( const wchar_t* str, wchar_t ch );
wchar_t* wcsrchr( wchar_t* str, wchar_t ch );


Finds the last occurrence of the wide character ch in the wide string pointed to by
str.

Parameters


str - pointer to the null-terminated wide string to be analyzed
ch - wide character to search for

Return value


Pointer to the found character in str, or a null pointer if no such character is
found.

Example

// Run this code


#include <iostream>
#include <cwchar>
#include <locale>


int main()
{
const wchar_t arr[] = L"白猫 黒猫 кошки";
const wchar_t* cat = std::wcsrchr(arr, L'猫');
const wchar_t* dog = std::wcsrchr(arr, L'犬');


std::cout.imbue(std::locale("en_US.utf8"));


if(cat)
std::cout << "The character 猫 found at position " << cat - arr << '\n';
else
std::cout << "The character 猫 not found\n";


if(dog)
std::cout << "The character 犬 found at position " << dog - arr << '\n';
else
std::cout << "The character 犬 not found\n";
}

Output:


The character 猫 found at position 4
The character 犬 not found

See also


wcschr finds the first occurrence of a wide character in a wide string
(function)
strrchr finds the last occurrence of a character
(function)
rfind find the last occurrence of a substring
(public member function of std::basic_string<CharT,Traits,Allocator>)

2022.07.31 http://cppreference.com