Namespace
Varianti

std::ios_base::precision

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< cpp‎ | io‎ | ios base

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C++
 
Ingresso / libreria di output
I / O manipolatori
C-style I / O
Buffer
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Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(deprecato)
Streams
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Streams
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Astrazioni
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Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
File I / O
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File I/O
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basic_ifstream
basic_ofstream
basic_fstream
String I / O
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String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Array I / O
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Array I/O
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istrstream(deprecato)
ostrstream(deprecato)
strstream(deprecato)
Tipi
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Types
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streamoff
streamsize
fpos
Errore categoria interfaccia
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Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
std::ios_base
Membri funzioni
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Member functions
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ios_base::ios_base
ios_base::~ios_base
Formattazione
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Formatting
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ios_base::flags
ios_base::setf
ios_base::unsetf
ios_base::precision
ios_base::width
Versioni locali
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Locales
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ios_base::imbue
ios_base::getloc
Interno di matrice estensibile
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Internal extensible array
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ios_base::xalloc
ios_base::iword
ios_base::pword
Varie
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Miscellaneous
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ios_base::register_callback
ios_base::sync_with_stdio
Membri classi
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Member classes
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ios_base::failure
ios_base::Init
Membri tipi
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Member types
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ios_base::openmode
ios_base::fmtflags
ios_base::iostate
ios_base::seekdir
ios_base::event
ios_base::event_callback
 
streamsize precision() const;
 (1)
streamsize precision( streamsize new_precision );
 (2)
Gestisce la precisione (cioè il numero di cifre vengono generati) di alcune conversioni di output numerici.
Original:
Manages the precision (i.e. how many digits are generated) of certain numeric output conversions.
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1)
Restituisce la precisione corrente.
Original:
Returns the current precision.
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2)
Imposta la precisione a quella data.
Original:
Sets the precision to the given one.
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Indice

[modifica] Parametri

new_precision -
nuova impostazione della precisione
Original:
new precision setting
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[modifica] Valore di ritorno

la precisione prima della chiamata alla funzione
Original:
the precision before the call to the function
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[modifica] Esempio

This section is incomplete
Reason: no example

[modifica] Vedi anche

 manages field width
(metodo pubblico) [modifica]
Estratto da "https://it.cppreference.com/mwiki/index.php?title=cpp/io/ios_base/precision&oldid=25828"