devdocs/c/io%2Fgetchar.html


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    <h1 id="firstHeading" class="firstHeading">getchar</h1>            <table class="t-dcl-begin"> <tr class="t-dsc-header"> <th> Defined in header <code>&lt;stdio.h&gt;</code> </th> <th> </th> <th> </th> </tr> <tr class="t-dcl"> <td class="t-dcl-nopad"> <pre data-language="c">int getchar( void );</pre>
</td> <td class="t-dcl-nopad"> </td> <td class="t-dcl-nopad"> </td> </tr>  </table> <p>Reads the next character from <code><a href="std_streams" title="c/io/std streams">stdin</a></code>.</p>
<p>Equivalent to <code><a href="http://en.cppreference.com/w/c/io/fgetc"><span class="kw828">getc</span></a><span class="br0">(</span><a href="http://en.cppreference.com/w/c/io/std_streams"><span class="kw885">stdin</span></a><span class="br0">)</span></code>.</p>
<h3 id="Parameters"> Parameters</h3> <p>(none)</p>
<h3 id="Return_value"> Return value</h3> <p>The obtained character on success or <code><a href="../io" title="c/io">EOF</a></code> on failure.</p>
<p>If the failure has been caused by end-of-file condition, additionally sets the <i>eof</i> indicator (see <code><a href="feof" title="c/io/feof">feof()</a></code>) on <code><a href="std_streams" title="c/io/std streams">stdin</a></code>. If the failure has been caused by some other error, sets the <i>error</i> indicator (see <code><a href="ferror" title="c/io/ferror">ferror()</a></code>) on <code><a href="std_streams" title="c/io/std streams">stdin</a></code>.</p>
<h3 id="Example"> Example</h3> <div class="t-example">
<p>Demonstrates <code>getchar</code> with error checking</p>
<div class="c source-c"><pre data-language="c">#include &lt;stdio.h&gt;
#include &lt;stdlib.h&gt;
 
int main(void)
{
    for (int ch; (ch = getchar()) != EOF;) // read/print "abcde" from stdin
        printf("%c", ch);
 
    // Test reason for reaching EOF.
    if (feof(stdin)) // if failure caused by end-of-file condition
        puts("End of file reached");
    else if (ferror(stdin)) // if failure caused by some other error
    {
        perror("getchar()");
        fprintf(stderr, "getchar() failed in file %s at line # %d\n",
                __FILE__, __LINE__ - 9);
        exit(EXIT_FAILURE);
    }
 
    return EXIT_SUCCESS;
}</pre></div> <p>Possible output:</p>
<div class="text source-text"><pre data-language="c">abcde
End of file reached</pre></div> </div> <h3 id="References"> References</h3>  <ul>
<li> C23 standard (ISO/IEC 9899:2023): </li>
<ul><li> 7.21.7.6 The getchar function (p: TBD) </li></ul>
<li> C17 standard (ISO/IEC 9899:2018): </li>
<ul><li> 7.21.7.6 The getchar function (p: TBD) </li></ul>
<li> C11 standard (ISO/IEC 9899:2011): </li>
<ul><li> 7.21.7.6 The getchar function (p: 332) </li></ul>
<li> C99 standard (ISO/IEC 9899:1999): </li>
<ul><li> 7.19.7.6 The getchar function (p: 298) </li></ul>
<li> C89/C90 standard (ISO/IEC 9899:1990): </li>
<ul><li> 4.9.7.6 The getchar function </li></ul>
</ul>                   <h3 id="See_also"> See also</h3> <table class="t-dsc-begin"> <tr class="t-dsc"> <td> <div><a href="fgetc" title="c/io/fgetc"> <span class="t-lines"><span>fgetc</span><span>getc</span></span></a></div> </td> <td> gets a character from a file stream <br> <span class="t-mark">(function)</span>  </td>
</tr> <tr class="t-dsc"> <td colspan="2"> <span><a href="https://en.cppreference.com/w/cpp/io/c/getchar" title="cpp/io/c/getchar">C++ documentation</a></span> for <code>getchar</code> </td>
</tr> </table>           <div class="_attribution">
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