cuberite/TCLAP
1
0
Fork 0
mirror of https://github.com/cuberite/TCLAP.git synced 2025-09-11 05:04:41 -04:00
Code Issues Packages Projects Releases Wiki Activity

added note on xor

Browse Source
This commit is contained in:
mes5k 2008-09-10 18:21:49 +00:00
parent a15700d36d
commit 0f874b5e90
1 changed files with 22 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
docs/manual.xml
View File

@ -654,6 +654,28 @@ wasn't matched, it will also return <constant>FALSE</constant>.)
throw("Very bad things...");
</programlisting>
It is helpful to note that <classname>Arg</classname>s of any type can be xor'd together.
This means that you can xor a <classname>SwitchArg</classname> with a <classname>ValueArg</classname>.
This is helpful in situations where one of several options is necessary and one of the options
requires additional information.
<programlisting>
SwitchArg sss("s", "stdin", "read from STDIN", false);
ValueArg&lt;string&gt; fff("f", "file", "read from file", false, "/dev/null", "string");
ValueArg&lt;string&gt; uuu("u", "url", "read from URL", false, "http://example.com", "string");
vector&lt;Arg*&gt; xorlist;
xorlist.push_back(&amp;sss);
xorlist.push_back(&amp;fff);
xorlist.push_back(&amp;uuu);
cmd.xorAdd( xorlist );
</programlisting>
</para>
</sect1>