root/man/libc/getchar.html

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<title>getchar</title>
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<h2 align=center>getchar</h2>
<h4 align=center>OS/161 Reference Manual</h4>

<h3>Name</h3>
getchar - read character from standard input

<h3>Library</h3>
Standard C Library (libc, -lc)

<h3>Synopsis</h3>
#include &lt;stdio.h&gt;<br>
<br>
int<br>
getchar(void);

<h3>Description</h3>

getchar reads a single character from standard input. The character is
converted to unsigned char before being returned; thus, EOF, which is
negative, is not a possible successful return value.

<h3>Return Values</h3>
On success, getchar returns the character read. On error, or end of
file, EOF is returned.

<h3>Errors</h3>

Any of the errors associated with <A HREF=../syscall/read>read</A>
may occur.

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