Check the code for syntax errors, but don't do anything beyond that.
@item -pedantic
-Issue all the warnings demanded by strict ANSI standard C; reject
-all programs that use forbidden extensions.
+Issue all the warnings demanded by strict ANSI C and ISO C++;
+reject all programs that use forbidden extensions.
-Valid ANSI standard C programs should compile properly with or without
+Valid ANSI C and ISO C++ programs should compile properly with or without
this option (though a rare few will require @samp{-ansi}). However,
-without this option, certain GNU extensions and traditional C features
-are supported as well. With this option, they are rejected.
+without this option, certain GNU extensions and traditional C and C++
+features are supported as well. With this option, they are rejected.
@samp{-pedantic} does not cause warning messages for use of the
alternate keywords whose names begin and end with @samp{__}. Pedantic