mingw/info/gdb/C-Defaults.html

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  19 <h5 class="subsubsection">C and C<tt>++</tt> defaults</h5>
  20
  21    <p>If you allow GDB to set type and range checking automatically, they
  22 both default to <code>off</code> whenever the working language changes to
  23 C or C<tt>++</tt>.  This happens regardless of whether you or GDB
  24 selects the working language.
  25
  26    <p>If you allow GDB to set the language automatically, it
  27 recognizes source files whose names end with <code>.c</code>, <code>.C</code>, or
  28 <code>.cc</code>, etc, and when GDB enters code compiled from one of
  29 these files, it sets the working language to C or C<tt>++</tt>.
  30 See <a href="Automatically.html#Automatically">Having GDB infer the source language</a>,
  31 for further details.
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