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mbrtowc

De cppreference.com
< c‎ | string‎ | multibyte

 
 
 
Terminadas en nulo de varios bytes
Ancho / multibyte conversiones
Original:
Wide/multibyte conversions
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mbsinit
Tipos
Original:
Types
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mbstate_t
 
Defined in header <wchar.h>
size_t mbrtowc( wchar_t* pwc, const char* s, size_t n, mbstate_t* ps );
Convierte un carácter multibyte angosto a un carácter ancho .
Original:
Converts a narrow multibyte character to a wide character.
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Si s no es un puntero nulo, inspecciona en la mayoría de los bytes n de la cadena de caracteres de varios bytes, comenzando con el byte apuntado por s para determinar el número de bytes necesarios para completar el siguiente carácter multibyte (incluyendo cualquiera de las secuencias de desplazamiento). Si la función determina que el siguiente carácter multibyte en s es completa y válida, convierte al carácter ancho correspondiente y lo almacena en *pwc (si pwc no es nulo) .
Original:
If s is not a null pointer, inspects at most n bytes of the multibyte character string, beginning with the byte pointed to by s to determine the number of bytes necessary to complete the next multibyte character (including any shift sequences). If the function determines that the next multibyte character in s is complete and valid, converts it to the corresponding wide character and stores it in *pwc (if pwc is not null).
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Si s es un puntero nulo, los valores de n y pwc son ignorados y la llamada es equivalente a mbrtowc(NULL, "", 1, ps) .
Original:
If s is a null pointer, the values of n and pwc are ignored and call is equivalent to mbrtowc(NULL, "", 1, ps).
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Si el carácter amplio producido es el carácter nulo, el estado de conversión almacenados en *ps es el estado inicial de cambios .
Original:
If the wide character produced is the null character, the conversion state stored in *ps is the initial shift state.
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Contenido

[editar] Parámetros

pwc -
puntero a la ubicación donde se realizará el carácter ancho resultante escrito
Original:
pointer to the location where the resulting wide character will be written
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s -
puntero a la cadena de caracteres multibyte utiliza como entrada
Original:
pointer to the multibyte character string used as input
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n -
limitar el número de bytes en s que puede ser examinado
Original:
limit on the number of bytes in s that can be examined
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ps -
puntero al estado de conversión utilizado en la interpretación de la cadena multibyte
Original:
pointer to the conversion state used when interpreting the multibyte string
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[editar] Valor de retorno

El primero de los siguientes que corresponda:
Original:
The first of the following that applies:
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  • 0 Si el carácter de s (y se almacena en pwc si no nulo) fue el carácter nulo
    Original:
    0 if the character converted from s (and stored in pwc if non-null) was the null character
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  • el número de bytes de [1...n] el carácter multibyte convertidos con éxito desde s
    Original:
    the number of bytes [1...n] of the multibyte character successfully converted from s
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  • (size_t)-2 si los bytes n próximos constituir un incompleto, pero hasta ahora vigente, el carácter multibyte. Nada está escrito a *pwc .
    Original:
    (size_t)-2 if the next n bytes constitute an incomplete, but so far valid, multibyte character. Nothing is written to *pwc.
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  • (size_t)-1 si se produce error de codificación. No se escribe nada *pwc, la EILSEQ valor se almacena en errno y el valor de *ps se deja sin especificar .
    Original:
    (size_t)-1 if encoding error occurs. Nothing is written to *pwc, the value EILSEQ is stored in errno and the value of *ps is left unspecified.
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[editar] Ejemplo

[editar] Ver también

convierte el carácter multibyte al lado de caracteres anchos
Original:
converts the next multibyte character to wide character
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(función) [edit]
convierte una carácter ancho a su representación multibyte, estado dado
Original:
converts a wide character to its multibyte representation, given state
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(función) [edit]
C++ documentation for mbrtowc