std::skipws, std::noskipws
Da cppreference.com.
 |
Questa pagina è stata tradotta in modo automatico dalla versione in ineglese della wiki usando Google Translate.
La traduzione potrebbe contenere errori e termini strani. Muovi il puntatore sopra al testo per vedere la versione originale. Puoi aiutarci a correggere gli gli errori. Per ulteriori istruzioni clicca qui. |
<metanoindex/>
<tbody> </tbody>| Elemento definito nell'header <ios>
|
||
std::ios_base& skipws( std::ios_base& str ); |
(1) | |
std::ios_base& noskipws( std::ios_base& str ); |
(2) | |
Attiva o disattiva il salto di spazi bianchi da parte delle funzioni di input formattati (attivata per impostazione predefinita). Non ha alcun effetto sulla produzione.
Original:
Enables or disables skipping of leading whitespace by the formatted input functions (enabled by default). Has no effect on output.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
1)
consente la bandiera
skipws nel str flusso come se chiamando str.setf(std::ios_base::skipws)Original:
enables the
skipws flag in the stream str as if by calling str.setf(std::ios_base::skipws)The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
2)
disabilita la bandiera
skipws nel str flusso come se chiamando str.unsetf(std::ios_base::skipws)Original:
disables the
skipws flag in the stream str as if by calling str.unsetf(std::ios_base::skipws)The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Il salto spazio viene eseguita dal costruttore di std::basic_istream::sentry, che legge e scarta i personaggi classificati come spazi bianchi dalla sfaccettatura std::ctype del locale intrisa del torrente.
Original:
The whitespace skipping is performed by the constructor of std::basic_istream::sentry, which reads and discards the characters classified as whitespace by the std::ctype facet of the stream's imbued locale.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Si tratta di un manipolatore di I / O, può essere chiamato con espressioni quali
out << std::noskipws per qualsiasi out di std::basic_ostream tipo o con un'espressione come in >> std::noskipws per qualsiasi in di std::basic_istream tipo.Original:
This is an I/O manipulator, it may be called with an expression such as
out << std::noskipws for any out of type std::basic_ostream or with an expression such as in >> std::noskipws for any in of type std::basic_istream.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Parametri
| str | - | riferimento al flusso di I / O
Original: reference to I/O stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Valore di ritorno
str (riferimento al flusso dopo la manipolazione)Original:
str (reference to the stream after manipulation)The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Esempio
#include <iostream>
#include <sstream>
int main()
{
char c1, c2, c3;
std::istringstream("a b c") >> c1 >> c2 >> c3;
std::cout << "Default behavior: c1 = " << c1 << " c2 = " << c2 << " c3 = " << c3 << '\n';
std::istringstream("a b c") >> std::noskipws >> c1 >> c2 >> c3;
std::cout << "noskipws behavior: c1 = " << c1 << " c2 = " << c2 << " c3 = " << c3 << '\n';
}
Output:
Default behavior: c1 = a c2 = b c3 = c
noskipws behavior: c1 = a c2 = c3 = b
Vedi anche
cancella le bandiere ios_base specificati Original: clears the specified ios_base flags The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione) | |
imposta i flag ios_base specificati Original: sets the specified ios_base flags The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione) |