term% cat index.txt GETC(3S) GETC(3S)
NAME
getc, getchar, fgetc, getw - get character or word from stream
SYNOPSIS
#include <stdio.h>
int getc(stream)
FILE *stream;
int getchar()
int fgetc(stream)
FILE *stream;
int getw(stream)
FILE *stream;
DESCRIPTION
Getc returns the next character from the named input stream.
Getchar() is identical to getc(stdin).
Fgetc behaves like getc, but is a genuine function, not a macro; it may
be used to save object text.
Getw returns the next word from the named input stream. It returns the
constant EOF upon end of file or error, but since that is a good inte‐
ger value, feof and ferror(3) should be used to check the success of
getw. Getw assumes no special alignment in the file.
SEE ALSO
fopen(3), putc(3), gets(3), scanf(3), fread(3), ungetc(3)
DIAGNOSTICS
These functions return the integer constant EOF at end of file or upon
read error.
A stop with message, ‘Reading bad file', means an attempt has been made
to read from a stream that has not been opened for reading by fopen.
BUGS
The end-of-file return from getchar is incompatible with that in UNIX
editions 1-6.
Because it is implemented as a macro, getc treats a stream argument
with side effects incorrectly. In particular, ‘getc(*f++);' doesn't
work sensibly.
GETC(3S)