std::skipws, std::noskipws

 

C++

Linguaggio

Concetti

Libreria di Utilità

Stringhe

Contenitori

Algoritmi

Iteratori

Libreria matematca

Input/output

Localizzazione

Espressioni regolari(C++11)

Operazioni atomicche(C++11)

Multithreading(C++11)

 

Ingresso / libreria di output

I / O manipolatori

C-style I / O

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

basic_streambuf

basic_filebuf

basic_stringbuf

strstreambuf (deprecato)

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

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

ios_base

basic_ios

basic_istream

basic_ostream

basic_iostream

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

basic_ifstream

basic_ofstream

basic_fstream

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

basic_istringstream

basic_ostringstream

basic_stringstream

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

istrstream (deprecato)

ostrstream (deprecato)

strstream (deprecato)

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

streamoff

streamsize

fpos

Errore categoria interfaccia Original: Error category interface The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

iostream_category (C++11)

io_errc (C++11)

 

Ingresso / uscita manipolatori

Virgola mobile formattazione Original: Floating-point formatting The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
showpoint noshowpoint setprecision	fixed scientific hexfloat defaultfloat (C++11) (C++11)
Formattazione Integer Original: Integer formatting The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
setbase showbase noshowbase	dec hex oct
Formattazione Boolean Original: Boolean formatting The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
boolalpha noboolalpha
Larghezza del campo e il controllo di riempimento Original: Field width and fill control The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
setfill setw	internal left right
Di formattazione Original: Other formatting The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
showpos noshowpos	uppercase nouppercase
Elaborazione degli spazi vuoti Original: Whitespace processing The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ws ends	skipws noskipws
Uscita di lavaggio Original: Output flushing The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
flush endl	unitbuf nounitbuf
Flag di stato manipolazione Original: Status flags manipulation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
resetiosflags	setiosflags
Tempo e denaro I / O Original: Time and money I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
get_money (C++11) get_time (C++11)	put_money (C++11) put_time (C++11)

 

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.

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.

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.

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.

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.

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.

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

resetiosflags	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)
setiosflags	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)