gets(3S)
gets, fgets --
get a string from a stream
Synopsis
#include <stdio.h>
char gets (char s);
char fgets (char s, int n, FILE stream);
Description
gets reads characters from the standard input stream
(see
intro(3)),
stdin, into the array pointed to by s,
until a newline character is read
or an end-of-file condition is encountered.
The newline character is discarded and the string is terminated with a
null character.
fgets reads characters from the stream into the array pointed
to by s, until n -1 characters are read, or
a newline character is read and transferred to
s,
or an end-of-file condition is encountered.
The string is then terminated with a null character.
When using gets, if the length of an input line exceeds the size of
s, indeterminate behavior may result.
For this reason, it is strongly recommended that gets be avoided
in favor of fgets.
Errors
If end-of-file is encountered and no characters have been read,
no characters are transferred to s and a null pointer is returned.
If a read operation was attempted, and an error occurs, such as trying to
use these functions on a file that has not been opened for reading,
a null pointer is returned.
If end-of-file is encountered, the EOF
indicator for the stream is set.
Otherwise s is returned.
The functions gets and fgets fail when
the file is a regular file and an
attempt was made to read at or beyond the offset maximum
associated with the corresponding stream.
There is no data transfer.
References
ferror(3S),
fopen(3S),
fread(3S),
fscanf(3S),
getc(3S),
intro(3),
Intro(3S),
lseek(2),
read(2),
ungetc(3S)
© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 25 April 2004