Benutzer:Diaspomod/stdio

Funktionen

Die meisten Ein- / Ausgabefunktionen für C-Dateien sind in stdio.h definiert (oder im C ++ - Header cstdio, der die Standard-C-Funktionalität enthält, jedoch im std-Namespace).

	Byte character	Wide character	Description
File access	fopen		Opens a file (with a non-Unicode filename on Windows and possible UTF-8 filename on Linux)
	freopen		Opens a different file with an existing stream
	fflush		Synchronizes an output stream with the actual file
	fclose		Closes a file
	setbuf		Sets the buffer for a file stream
	setvbuf		Sets the buffer and its size for a file stream
	fwide		Switches a file stream between wide-character I/O and narrow-character I/O
Direct input/output	fread		Reads from a file
	fwrite		Writes to a file
Unformatted input/output	fgetc getc	fgetwc getwc	Reads a byte/wchar_t from a file stream
	fgets	fgetws	Reads a byte/wchar_t line from a file stream
	fputc putc	fputwc putwc	Writes a byte/wchar_t to a file stream
	fputs	fputws	Writes a byte/wchar_t string to a file stream
	getchar	getwchar	Reads a byte/wchar_t from stdin
	gets	Vorlage:N/a	Reads a byte string from stdin until a newline or end of file is encountered (deprecated in C99, removed from C11)
	putchar	putwchar	Writes a byte/wchar_t to stdout
	puts	Vorlage:N/a	Writes a byte string to stdout
	ungetc	ungetwc	Puts a byte/wchar_t back into a file stream
Formatted input/output	scanf fscanf sscanf	wscanf fwscanf swscanf	Reads formatted byte/wchar_t input from stdin, a file stream or a buffer
	vscanf vfscanf vsscanf	vwscanf vfwscanf vswscanf	Reads formatted input byte/wchar_t from stdin, a file stream or a buffer using variable argument list
	printf fprintf sprintf snprintf	wprintf fwprintf swprintf	Prints formatted byte/wchar_t output to stdout, a file stream or a buffer
	vprintf vfprintf vsprintf vsnprintf	vwprintf vfwprintf vswprintf	Prints formatted byte/wchar_t output to stdout, a file stream, or a buffer using variable argument list
	perror	Vorlage:N/a	Writes a description of the current error to stderr
File positioning	ftell ftello		Returns the current file position indicator
	fseek fseeko		Moves the file position indicator to a specific location in a file
	fgetpos		Gets the file position indicator
	fsetpos		Moves the file position indicator to a specific location in a file
	rewind		Moves the file position indicator to the beginning in a file
Error handling	clearerr		Clears errors
	feof		Checks for the end-of-file
	ferror		Checks for a file error
Operations on files	remove		Erases a file
	rename		Renames a file
	tmpfile		Returns a pointer to a temporary file
	tmpnam		Returns a unique filename