debug.sgml

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Debug

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Functions for outputing diagnostics.

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<para>

These functions relate to outputing diagnostic messages and
information.

</para>

<para>

Use of these functions requires DEBUG to be defined at compilation
time.  On Unix systems, the <filename>configure</filename> script has
a command-line option <option>--enable-debug</option>.  On Win32 a
debug configuration exists.

</para>

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<para>

</para>

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<para>

Available for use to prevent compiler warnings when a function
argument is not used.  Sometimes this is unavoidable because function
has to conform to an interface.

</para>

@x: unused function argument that generates compiler warning.


<!-- ##### MACRO debug_msg ##### -->
<para>

When DEBUG is defined this will write a formatted message to the
platform defined error stream.  The format of the message has the same
semantics as standard C library call <function>printf()</function>.  The error
message displayed is prepended by the process id, the file and the
line number, where debug_msg() was called.

On Unix the message is rendered on the standard error stream.  On
Win32 a debug message is created using the Win32 API function
<function>OutputDebugString()</function>.

</para>



<!-- ##### FUNCTION debug_dump ##### -->
<para>

</para>

@lp: 
@len: 


<!-- ##### FUNCTION debug_set_core_dir ##### -->
<para>

</para>

@argv0: