File: environment.C.html

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<pre>
<font color="#0000ff">// Copyright (c) 2003  David Muse</font>
<font color="#0000ff">// See the file COPYING for more information</font>

<font color="#a020f0">#include </font><font color="#ff00ff">&lt;rudiments/environment.h&gt;</font>
<font color="#a020f0">#include </font><font color="#ff00ff">&lt;stdio.h&gt;</font>

<font color="#a020f0">#ifdef RUDIMENTS_NAMESPACE</font>
<font color="#a52a2a"><b>using</b></font> <font color="#2e8b57"><b>namespace</b></font> rudiments;
<font color="#a020f0">#endif</font>

<font color="#2e8b57"><b>int</b></font> main(<font color="#2e8b57"><b>int</b></font> argc, <font color="#2e8b57"><b>const</b></font> <font color="#2e8b57"><b>char</b></font> **argv) {

        <font color="#0000ff">// print the environment variable &quot;TEST&quot;</font>
        printf(<font color="#ff00ff">&quot;TEST=</font><font color="#6a5acd">%s</font><font color="#6a5acd">\n</font><font color="#ff00ff">&quot;</font>,environment::getValue(<font color="#ff00ff">&quot;TEST&quot;</font>));

        <font color="#0000ff">// set the value of &quot;TEST&quot; to &quot;value&quot;</font>
        <font color="#a52a2a"><b>if</b></font> (environment::setValue(<font color="#ff00ff">&quot;TEST&quot;</font>,<font color="#ff00ff">&quot;value&quot;</font>)) {
                printf(<font color="#ff00ff">&quot;TEST=</font><font color="#6a5acd">%s</font><font color="#6a5acd">\n</font><font color="#ff00ff">&quot;</font>,environment::getValue(<font color="#ff00ff">&quot;TEST&quot;</font>));
        } <font color="#a52a2a"><b>else</b></font> {
                printf(<font color="#ff00ff">&quot;setValue() failed</font><font color="#6a5acd">\n</font><font color="#ff00ff">&quot;</font>);
        }

        <font color="#0000ff">// set the value of &quot;TEST&quot; to &quot;newvalue&quot;</font>
        <font color="#a52a2a"><b>if</b></font> (environment::setValue(<font color="#ff00ff">&quot;TEST&quot;</font>,<font color="#ff00ff">&quot;newvalue&quot;</font>)) {
                printf(<font color="#ff00ff">&quot;TEST=</font><font color="#6a5acd">%s</font><font color="#6a5acd">\n</font><font color="#ff00ff">&quot;</font>,environment::getValue(<font color="#ff00ff">&quot;TEST&quot;</font>));
        } <font color="#a52a2a"><b>else</b></font> {
                printf(<font color="#ff00ff">&quot;setValue() failed</font><font color="#6a5acd">\n</font><font color="#ff00ff">&quot;</font>);
        }

        <font color="#0000ff">// remove &quot;TEST&quot; from the environment</font>
        environment::remove(<font color="#ff00ff">&quot;TEST&quot;</font>);

        <font color="#0000ff">// print the (non-existent) environment variable &quot;TEST&quot;</font>
        printf(<font color="#ff00ff">&quot;TEST=</font><font color="#6a5acd">%s</font><font color="#6a5acd">\n</font><font color="#ff00ff">&quot;</font>,environment::getValue(<font color="#ff00ff">&quot;TEST&quot;</font>));

        printf(<font color="#ff00ff">&quot;</font><font color="#6a5acd">\n\n</font><font color="#ff00ff">&quot;</font>);
        environment::print();

        printf(<font color="#ff00ff">&quot;</font><font color="#6a5acd">\n\n</font><font color="#ff00ff">&quot;</font>);
        environment::clear();

        printf(<font color="#ff00ff">&quot;</font><font color="#6a5acd">\n\n</font><font color="#ff00ff">clear?</font><font color="#6a5acd">\n</font><font color="#ff00ff">&quot;</font>);
        environment::print();
}
</pre>