table of contents
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 |