[m-rev.] diff: documentation in mercury_trace_base.h

[Zoltan Somogyi]

runtime/mercury_trace_base.h:
	Document why MR_trace_get_action is in this file.

Zoltan.

Index: mercury_trace_base.h
===================================================================
RCS file: /home/mercury1/repository/mercury/runtime/mercury_trace_base.h,v
retrieving revision 1.35
diff -u -b -r1.35 mercury_trace_base.h
--- mercury_trace_base.h	14 Sep 2003 22:24:37 -0000	1.35
+++ mercury_trace_base.h	14 Sep 2003 22:27:57 -0000
@@ -317,6 +317,10 @@
 ** in *arg_list_ptr.
 ** This function uses the heap pointer, so calls to it must be wrapped
 ** with MR_save_transient_hp() and MR_restore_transient_hp().
+**
+** This function is called from the Mercury code in the debugger, in the
+** browser directory. It is here, not in the trace directory, because code
+** in the browser directory cannot call functions in the trace directory.
 */
 
 extern	const char
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