The Open Group Base Specifications Issue 6
IEEE Std 1003.1, 2003 Edition
Copyright © 2001-2003 The IEEE and The Open Group, All Rights reserved.

NAME

getchar - get a byte from a stdin stream

SYNOPSIS

#include <stdio.h>

int getchar(void);

DESCRIPTION

[CX] [Option Start] The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of IEEE Std 1003.1-2001 defers to the ISO C standard. [Option End]

The getchar() function shall be equivalent to getc(stdin).

RETURN VALUE

Refer to fgetc() .

ERRORS

Refer to fgetc() .

The following sections are informative.

EXAMPLES

None.

APPLICATION USAGE

If the integer value returned by getchar() is stored into a variable of type char and then compared against the integer constant EOF, the comparison may never succeed, because sign-extension of a variable of type char on widening to integer is implementation-defined.

RATIONALE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

getc() , the Base Definitions volume of IEEE Std 1003.1-2001, <stdio.h>

CHANGE HISTORY

First released in Issue 1. Derived from Issue 1 of the SVID.

End of informative text.
UNIX ® is a registered Trademark of The Open Group.
POSIX ® is a registered Trademark of The IEEE.
[ Main Index | XBD | XCU | XSH | XRAT ]