The Open Group Base Specifications Issue 6
IEEE Std 1003.1, 2004 Edition
Copyright © 2001-2004 The IEEE and The Open Group, All Rights reserved.
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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.

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