Document return value of VALGRIND_MAKE_MEM_DEFINED and friends.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14089

diff --git a/memcheck/docs/mc-manual.xml b/memcheck/docs/mc-manual.xml
index a2a2e090cf713dc62de3f4ae0db7c0ba769c6bff..1745d7a5b93213031ddcfc1b3f0cbe8cf49792da 100644 (file)
--- a/memcheck/docs/mc-manual.xml
+++ b/memcheck/docs/mc-manual.xml
@@ -1930,7 +1930,8 @@ arguments.</para>
     <varname>VALGRIND_MAKE_MEM_DEFINED</varname>.
     These mark address ranges as completely inaccessible,
     accessible but containing undefined data, and accessible and
-    containing defined data, respectively.</para>
+    containing defined data, respectively. They return -1, when
+    run on Valgrind and 0 otherwise.</para>
   </listitem>
 
   <listitem>