mingw/info/gdb/GDB-M2.html

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  12 Node:<a name="GDB%2fM2">GDB/M2</a>,
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  18 <h5 class="subsubsection">GDB and Modula-2</h5>
  19
  20    <p>Some GDB commands have little use when debugging Modula-2 programs.
  21 Five subcommands of <code>set print</code> and <code>show print</code> apply
  22 specifically to C and C<tt>++</tt>: <code>vtbl</code>, <code>demangle</code>,
  23 <code>asm-demangle</code>, <code>object</code>, and <code>union</code>.  The first four
  24 apply to C<tt>++</tt>, and the last to the C <code>union</code> type, which has no direct
  25 analogue in Modula-2.
  26
  27    <p>The <code>@</code> operator (see <a href="Expressions.html#Expressions">Expressions</a>), while available
  28 with any language, is not useful with Modula-2.  Its
  29 intent is to aid the debugging of <dfn>dynamic arrays</dfn>, which cannot be
  30 created in Modula-2 as they can in C or C<tt>++</tt>.  However, because an
  31 address can be specified by an integral constant, the construct
  32 <code>{</code><var>type</var><code>}</code><var>adrexp</var><code></code> is still useful.
  33
  34    <p>In GDB scripts, the Modula-2 inequality operator <code>#</code> is
  35 interpreted as the beginning of a comment.  Use <code>&lt;&gt;</code> instead.
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