std::mbsinit
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Definido no cabeçalho <cwchar> | ||
int mbsinit(conststd::mbstate_t* ps); | ||
Se
ps não é um ponteiro nulo, a função mbsinit determina se o objeto pontiagudo para std::mbstate_t descreve o estado de conversão inicial. Original:
If
ps is not a null pointer, the mbsinit function determines whether the pointed-to std::mbstate_t object describes the initial conversion state. The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Índice |
[editar]Notas
Embora um zero inicializado std::mbstate_t sempre representa o estado inicial de conversão, pode haver outros valores de std::mbstate_t que também representam o estado inicial de conversão.
Original:
Although a zero-initialized std::mbstate_t always represents the initial conversion state, there may be other values of std::mbstate_t that also represent the initial conversion state.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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[editar]Parâmetros
| ps | - | pointer to the std::mbstate_t object to examine |
[editar]Valor de retorno
0 se
ps não é um ponteiro nulo e não reporesent o estado de conversão inicial, valor diferente de zero caso contrário.Original:
0 if
ps is not a null pointer and does not reporesent the initial conversion state, nonzero value otherwise.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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[editar]Exemplo
#include <clocale>#include <string>#include <iostream>#include <cwchar> int main(){// allow mbrlen() to work with UTF-8 multibyte encodingstd::setlocale(LC_ALL, "en_US.utf8");// UTF-8 narrow multibyte encodingstd::string str = u8"水";// or u8"\u6c34" or "\xe6\xb0\xb4"std::mbstate_t mb =std::mbstate_t();(void)std::mbrlen(&str[0], 1, &mb);if(!std::mbsinit(&mb)){std::cout<<"After processing the first 1 byte of "<< str <<" the conversion state is not initial\n";} (void)std::mbrlen(&str[1], str.size()-1, &mb);if(std::mbsinit(&mb)){std::cout<<"After processing the remaining 2 bytes of "<< str <<", the conversion state is initial conversion state\n";}}
Saída:
After processing the first 1 byte of 水 the conversion state is not initial After processing the remaining 2 bytes of 水, the conversion state is initial conversion state
[editar]Veja também
informação de conversão de estado necessário para repetir seqüências de caracteres multibyte Original: conversion state information necessary to iterate multibyte character strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (classe) | |
Documentação C para mbsinit | |
