GETS
Section: Standard I/O Functions (3S)
Updated: August 1, 1992
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NAME
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 a string into
s
from the standard input stream
stdin,
until end-of-file is encountered or a new-line
character is read.
The string is terminated by a newline
character, which is replaced in
s
by a null character.
Fgets
reads
n-1
characters, or up through a newline
character, whichever comes first,
from the
stream
into the string
s.
No additional characters are read after a new-line character
(which is retained) or after end-of-file.
The last character read into
s
is followed by a null character.
RETURN VALUE
Fgets
and
gets
returns s if successful. If unsuccessful, a null pointer
is returned and an error code is stored in errno.
ERRORS
The underlying function of
fgets
and
gets
is read(2).
The error conditions specified for
read(2)
apply to
fgets
and
gets.
SEE ALSO
read(2),
puts(3S),
getc(3S),
scanf(3S),
fread(3S),
ferror(3S)
DIAGNOSTICS
Gets
and
fgets
return the constant pointer
NULL
upon end of file or error.
BUGS
Gets
deletes a newline,
fgets
keeps it,
all in the name of backward compatibility.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUE
-
- ERRORS
-
- SEE ALSO
-
- DIAGNOSTICS
-
- BUGS
-
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