| 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* wcschr(constwchar_t* str,wchar_t ch); | ||
wchar_t* wcschr( wchar_t* str,wchar_t ch); | ||
Finds the first occurrence of the wide characterch in the wide string pointed to bystr.
Contents |
| str | - | pointer to the null-terminated wide string to be analyzed |
| ch | - | wide character to search for |
Pointer to the found character instr, or a null pointer if no such character is found.
#include <cwchar>#include <iostream>#include <locale> int main(){constwchar_t arr[]= L"白猫 黒猫 кошки";constwchar_t* cat= std::wcschr(arr, L'猫');constwchar_t* dog= std::wcschr(arr, L'犬'); std::cout.imbue(std::locale("en_US.utf8")); if(cat)std::cout<<"The character 猫 found at position "<< cat- arr<<'\n';elsestd::cout<<"The character 猫 not found\n"; if(dog)std::cout<<"The character 犬 found at position "<< dog- arr<<'\n';elsestd::cout<<"The character 犬 not found\n";}
Output:
The character 猫 found at position 1The character 犬 not found
| 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 character (function)[edit] | |
| finds the last occurrence of a wide character in a wide string (function)[edit] | |
| finds the first location of any wide character in one wide string, in another wide string (function)[edit] | |
C documentation forwcschr | |
