std::fwrite

 

C++

Linguaggio

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Libreria di Utilità

Stringhe

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Algoritmi

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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)

 

C-style I / O

Funzioni Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Accesso ai file Original: File access The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
fopen freopen fclose fflush	fwide setbuf setvbuf
Diretta input / output Original: Direct input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
fread
fwrite
Ingresso formattato / uscita Original: Unformatted input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
fgetc fgets fputc fputs getchar gets putchar puts ungetc	fgetwc fgetws fputwc fputws getwchar putwchar ungetwc
Formattato di input / output Original: Formatted input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
scanf fscanf sscanf vscanf vfscanf vsscanf (C++11) (C++11) (C++11) printf fprintf sprintf snprintf (C++11) vprintf vfprintf vsprintf vsnprintf (C++11)	wscanf fwscanf swscanf vwscanf vfwscanf vswscanf (C++11) (C++11) (C++11) wprintf fwprintf swprintf vwprintf vfwprintf vswprintf
File di posizionamento Original: File positioning The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ftell
fgetpos
fseek
fsetpos
rewind
La gestione degli errori Original: Error handling The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
clearerr
feof
ferror
perror
Le operazioni sui file Original: Operations on files The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
remove
rename
tmpfile
tmpnam

 

Elemento definito nell'header <cstdio>
int fwrite(constvoid* buffer, std::size_t size, std::size_t count, std::FILE* stream );

Writes up to count objects from the given array buffer to the output stream stream as if by reinterepreting each object as an array of unsignedchar and calling std::fputcsize times for each object to write those unsignedchars into stream, in order. The file position indicator for the stream is advanced by the number of characters written.

Se gli oggetti non sono TriviallyCopyable, il comportamento non è definito.

Original:

If the objects are not TriviallyCopyable, the behavior is undefined.

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Se si verifica un errore, il valore risultante dell'indicatore file di posizione per il flusso è

Original:

If an error occurs, the resulting value of the file position indicator for the stream is

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indeterminate.

Parametri

buffer	-	puntatore all'oggetto primo oggetto nella matrice da scrivere Original: pointer to the first object object in the array 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.
size	-	dimensione di ciascun oggetto Original: size of each object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
count	-	il numero degli oggetti da scrivere Original: the number of the objects 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.

Valore di ritorno

Number of objects written successfully, which may be less than count if an error occurred.

Se size o count è pari a zero, fwrite restituisce zero e non esegue alcuna altra azione.

Original:

If size or count is zero, fwrite returns zero and performs no other action.

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Vedi anche

printf fprintf sprintf snprintf (C++11)	stampe formattata uscita stdout, un flusso di file o di un buffer Original: prints formatted output to stdout, a file stream or a buffer The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
fputs	Scrive una stringa di caratteri in un flusso di file Original: writes a character string to a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
fread	legge da un file Original: reads from a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)
C documentation for fwrite