Wikipedia:Sandbox/Archive

Member functions

Functions declared in stdio.h can generally be divided into two categories: the functions for file manipulation and the functions for input-output manipulation.

Name	Notes
File manipulation functions
fclose	closes a file associated with the FILE * value passed to it
fopen, freopen, fdopen	opens a file for certain types of reading or writing
remove	removes a file (deletes it)
rename	renames a file
rewind	acts as if fseek(stream, 0L, SEEK_SET) was called for the stream passed, and then its error indicator cleared
tmpfile	creates and open a temporary file, which is deleted when closed with fclose()
Input-output manipulation functions
clearerr	clears end-of-file and error indicators for a given stream
feof	checks whether an end-of-file indicator has been set for a given stream
ferror	checks whether an error indicator has been set for a given stream
fflush	forces any pending buffered output to be written to the file associated with a given stream
fgetpos	stores the file position indicator of the stream associated by its first argument (a FILE *) to its second argument (a fpos_t *)
fgetc	returns one character from a file
fgets	gets a string from the file (ends at newline or null character)
fputc	writes one character to a file
fputs	writes a string to a file
ftell	returns a file-position indicator which can then be passed to fseek
fseek	seeks through a file
fsetpos	sets the file position indicator of a stream associated by its first argument (a FILE *) as stored in its second argument (a fpos_t *)
fread	reads different sized data from a file
fwrite	writes different sized data to a file
getc	reads and returns a character from a given stream and advances the file position indicator; it is allowed to be a macro with the same effects as fgetc, except that it may evaluate the stream more than once
getchar	has the same effects as getc(stdin)
gets	reads characters from stdin until a newline is encountered and stores them in its only argument
printf, fprintf,vprintf	used to print to stdout
sprintf, snprintf	also used to print to a string
perror	writes an error message to stderr
putc	writes and returns a character to a stream and advances the file position indicator for it; it is allowed to be a macro with the same effects as fputc, except that it may evaluate the stream more than once
putchar, fputchar	has the same effects as putc(stdout)
scanf, fscanf, sscanf	used to input from stdin
vfscanf, vscanf, vsscanf	also used to input from stdin
setbuf
setvbuf	sets the buffering mode for a given stream
tmpnam	creates a temporary filename and stores it in its first argument (a char *)
ungetc	pushes a character back onto a stream
puts	outputs a character string to stdout

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