| Localization library | |||||||||||||||||||||||||
| Regular expressions library(C++11) | |||||||||||||||||||||||||
| Formatting library(C++20) | |||||||||||||||||||||||||
| Null-terminated sequence utilities | |||||||||||||||||||||||||
| Byte strings | |||||||||||||||||||||||||
| Multibyte strings | |||||||||||||||||||||||||
| Wide strings | |||||||||||||||||||||||||
| Primitive numeric conversions | |||||||||||||||||||||||||
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| Text encoding identifications | |||||||||||||||||||||||||
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| Functions | ||||||||||||||||||||||||||
| Character classification | ||||||||||||||||||||||||||
| Character manipulation | ||||||||||||||||||||||||||
| Conversions to numeric formats | ||||||||||||||||||||||||||
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| String manipulation | ||||||||||||||||||||||||||
| String examination | ||||||||||||||||||||||||||
| Array manipulation | ||||||||||||||||||||||||||
Defined in header <cwchar> | ||
constwchar_t* wcsstr(constwchar_t* dest,constwchar_t* src); | ||
wchar_t* wcsstr( wchar_t* dest,constwchar_t* src); | ||
Finds the first occurrence of the wide stringsrc in the wide string pointed to bydest. The terminating null characters are not compared.
Contents |
| dest | - | pointer to the null-terminated wide string to examine |
| src | - | pointer to the null-terminated wide string to search for |
Pointer to the first character of the found substring indest, or a null pointer if no such substring is found. Ifsrc points to an empty string,dest is returned.
#include <clocale>#include <cwchar>#include <iostream> int main(){wchar_tconst* origin= L"アルファ, ベータ, ガンマ, アルファ, ベータ, ガンマ.";wchar_tconst* target= L"ベータ";wchar_tconst* result= origin; std::setlocale(LC_ALL,"en_US.utf8");std::wcout<< L"Substring to find:\""<< target<< L"\"\n"<< L"String to search:\""<< origin<< L"\"\n\n"; for(;(result= std::wcsstr(result, target))!= nullptr;++result)std::wcout<< L"Found:\""<< result<< L"\"\n";}
Possible output:
Substring to find: "ベータ"String to search: "アルファ, ベータ, ガンマ, アルファ, ベータ, ガンマ." Found: "ベータ, ガンマ, アルファ, ベータ, ガンマ."Found: "ベータ, ガンマ."
| finds the first occurrence of the given substring (public member function of std::basic_string<CharT,Traits,Allocator>)[edit] | |
| finds the first occurrence of a substring of characters (function)[edit] | |
| 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] | |
C documentation forwcsstr | |
