std::strxfrm

 

C++

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Strings biblioteca

Terminadas en nulo Original: Null-terminated strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Cadenas de bytes

Multibyte cuerdas

Cadenas anchas

Clases Original: Classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string

char_traits

 

Terminadas en nulo de bytes

Funciones Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
De manipulación de caracteres Original: Character manipulation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
isalnum isalpha islower isupper isdigit isxdigit isblank (C++11)	iscntrl isgraph isspace isprint ispunct tolower toupper
Las conversiones a formatos numéricos Original: Conversions to numeric formats The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
atof atoi atol atoll strtol strtoll	strtoul strtoull strtof strtod strtold
Cadena de manipulación Original: String manipulation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
strcpy
strncpy
strcat
strncat
strxfrm
Cadena examen Original: String examination The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
strlen strcmp strncmp strcoll strchr strrchr	strspn strcspn strpbrk strstr strtok
Memoria manipulación Original: Memory manipulation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
memchr
memcmp
memset
memcpy
memmove
Varios Original: Miscellaneous The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
strerror

 

Defined in header <cstring>
std::size_t strxfrm( const char* dest, const char* src, std::size_t count );

Transforma la cadena de bytes de terminación nula apuntado por src en la forma de implantación definido de tal manera que comparar dos cadenas transformadas con std::strcmp da el mismo resultado que la comparación de las cadenas originales con std::strcoll, en la actual configuración regional C .

Original:

Transforms the null-terminated byte string pointed to by src into the implementation-defined form such that comparing two transformed strings with std::strcmp gives the same result as comparing the original strings with std::strcoll, in the current C locale.

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Los caracteres count primero de la cadena transformada se escriben en destino, incluyendo el carácter nulo de terminación, y la longitud de la cadena completa transformada se devuelve, excluido el carácter nulo de terminación .

Original:

The first count characters of the transformed string are written to destination, including the terminating null character, and the length of the full transformed string is returned, excluding the terminating null character.

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Si count es ​0​, entonces dest se le permite ser un puntero nulo .

Original:

If count is ​0​, then dest is allowed to be a null pointer.

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Notas

La longitud correcta del búfer que puede recibir toda la cadena transformada es 1+std::strxfrm(NULL, src, 0)

Original:

The correct length of the buffer that can receive the entire transformed string is 1+std::strxfrm(NULL, src, 0)

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Parámetros

dest	-	puntero al primer elemento de la matriz donde se realizará la cadena transformada escrito Original: pointer to the first element of the array where the transformed string will be written The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
src	-	puntero al primer carácter de una cadena de bytes terminada en cero para transformar Original: pointer to the first character of a null-terminated byte string to transform The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
count	-	número máximo de caracteres que se pueden escribir Original: maximum number of characters to be written The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valor de retorno

La longitud de la cadena transformada, no incluyendo el carácter de terminación en nulo .

Original:

The length of the transformed string, not including the terminating null-character.

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Ejemplo

#include <iostream>
#include <iomanip>
#include <cstring>
 
int main()
{
    std::setlocale(LC_COLLATE, "cs_CZ.iso88592");
 
    std::string in1 = "hrnec";
    std::string out1(1+std::strxfrm(nullptr, in1.c_str(), 0), ' ');
    std::string in2 = "chrt";
    std::string out2(1+std::strxfrm(nullptr, in2.c_str(), 0), ' ');
 
    std::strxfrm(&out1[0], in1.c_str(), out1.size());
    std::strxfrm(&out2[0], in2.c_str(), out2.size());
 
    std::cout << "In the Czech locale: ";
    if(out1 < out2)
         std::cout << in1 << " before " << in2 << '\n';
    else
         std::cout << in2 << " before " << in1 << '\n';
 
    std::cout << "In lexicographical comparison: ";
    if(in1 < in2)
         std::cout << in1 << " before " << in2 << '\n';
    else
         std::cout << in2 << " before " << in1 << '\n';
 
}

Output:

In the Czech locale: hrnec before chrt
In lexicographical comparison: chrt before hrnec

Ver también

wcsxfrm	transformar una cadena de ancho para que wcscmp produciría el mismo resultado que wcscoll Original: transform a wide string so that wcscmp would produce the same result as wcscoll The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)
do_transform [virtual]	transforma una cadena para que intercalación puede ser sustituido por comparación Original: transforms a string so that collation can be replaced by comparison The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (virtuales protegidos of std::collate miembro de función)
strcoll	compara dos cadenas de acuerdo a la localización actual Original: compares two strings in accordance to the current locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función)
C documentation for strxfrm