Matthijs Kooijman b196a4a9c5 Suppress "unused parameter" warnings ...

A bunch of functions have parameters they do not use, but which cannot
be removed for API compatibility.

In syscalls_sam3.c, there are a lot of these, so this adds an "UNUSED"
macro which adds the "unused" variable attribute if supported (GCC
specific), or is just a noop on other compilers.

In CDC.cpp, there's only three of these variables, so this commit just
forces a dummy evaluation of them to suppress the warnings.

This helps towards #1792.

2014-02-19 16:09:30 +01:00

..

arduino

Suppress "unused parameter" warnings

2014-02-19 16:09:30 +01:00