[PATCH] libsupc++/cxxabi.h (__cxa_demangle): Clarify doxygen comment.

[Jonathan Wakely]

Document that the parameter can be null.

Committed to trunk.


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commit a7fcd4545416835228f1c0efc8c8b2f21d85262d
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Wed Sep 5 16:17:07 2018 +0100

            * libsupc++/cxxabi.h (__cxa_demangle): Clarify doxygen comment.

diff --git a/libstdc++-v3/libsupc++/cxxabi.h b/libstdc++-v3/libsupc++/cxxabi.h
index 1bcf1282936..bf14085eaa7 100644
--- a/libstdc++-v3/libsupc++/cxxabi.h
+++ b/libstdc++-v3/libsupc++/cxxabi.h
@@ -165,10 +165,11 @@ namespace __cxxabiv1
    *  in that case, the demangled name is placed in a region of memory
    *  allocated with malloc.
    *
-   *  @param __length If @a __length is non-NULL, the length of the
+   *  @param __length If @a __length is non-null, the length of the
    *  buffer containing the demangled name is placed in @a *__length.
    *
-   *  @param __status @a *__status is set to one of the following values:
+   *  @param __status If @a __status is non-null, @a *__status is set to
+   *  one of the following values:
    *   0: The demangling operation succeeded.
    *  -1: A memory allocation failure occurred.
    *  -2: @a mangled_name is not a valid name under the C++ ABI mangling rules.