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std::wcslen

De cppreference.com
< cpp‎ | string‎ | wide

 
 
Strings biblioteca
Terminadas en nulo
Original:
Null-terminated strings
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Cadenas de bytes
Multibyte cuerdas
Cadenas anchas
Clases
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Classes
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basic_string
char_traits
 
Terminadas en nulo de ancho
Funciones
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Functions
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De manipulación de caracteres
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Character manipulation
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Las conversiones a formatos numéricos
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Conversions to numeric formats
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Cadena de manipulación
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String manipulation
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Matriz de manipulación
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Array manipulation
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wmemcpy
wmemmove
wmemcmp
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Defined in header <cwchar>
std::size_t wcslen( const wchar_t *str );
Devuelve la longitud de una cadena de ancho, que es el número de caracteres que no son nulos de ancho que preceden al carácter nulo de terminación de ancho .
Original:
Returns the length of a wide string, that is the number of non-null wide characters that precede the terminating null wide character.
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Contenido

[editar] Parámetros

str -
puntero a la cadena gama terminada en nulo que se examinará
Original:
pointer to the null-terminated wide string to be examined
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[editar] Valor de retorno

La longitud de la cadena de ancho terminada en nulo str .
Original:
The length of the null-terminated wide string str.
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[editar] Ejemplo

#include <iostream>
#include <cwchar>
int main()
{
    const wchar_t* str = L"Hello, world!";
    std::wcout << "The length of L\"" << str << "\" is " << std::wcslen(str) << '\n';
}

Output:

The length of L"Hello, world!" is 13

[editar] Ver también

C documentation for wcslen