title: Disable specific warnings in GCC
body: <p>On Microsoft compilers, specific warnings can be disabled with a #pragma, without disabling other warnings.  This is an extremely useful feature if the compiler warns over something that &quot;has to be done&quot;.</p>
  <p>Does GCC at this point have a similar feature?  It seems like an obvious enough feature that it’s unimaginable that it wouldn't have this feature yet, but older information on the web suggests this feature doesn't exist.</p>
  <p>What is one to use in GCC?</p>
  <p>Specifically, I like to use multi-character constants, like 'abc'.  These evaluate effectively as a base 256 number - a very handy feature, but it triggers a warning. It’s very handy for switching on four character strings in a case statement.</p>