As a followup to r12-7656-gffe9c0a0d3564a, this minor patch condenses the handling of ambiguity and access w.r.t. the value of 'protect' so that it more clearly matches the function comment.
Bootstrapped and regtested on x86_64-pc-linux-gnu, does this look OK for trunk? gcc/cp/ChangeLog: * search.cc (lookup_member): Simplify by handling all values of protect at once in case of ambiguous lookup. Don't modify protect. --- gcc/cp/search.cc | 32 +++++++++++++------------------- 1 file changed, 13 insertions(+), 19 deletions(-) diff --git a/gcc/cp/search.cc b/gcc/cp/search.cc index 85e3e7cb487..b86b3a24080 100644 --- a/gcc/cp/search.cc +++ b/gcc/cp/search.cc @@ -1168,27 +1168,21 @@ lookup_member (tree xbasetype, tree name, int protect, bool want_type, if (rval_binfo) type = BINFO_TYPE (rval_binfo); - /* If we are not interested in ambiguities, don't report them; - just return NULL_TREE. */ - if (!protect && lfi.ambiguous) - return NULL_TREE; - - if (protect == 2) - { - if (lfi.ambiguous) - return lfi.ambiguous; - else - protect = 0; - } - - if (protect == 1 && lfi.ambiguous) + if (lfi.ambiguous) { - if (complain & tf_error) + if (protect == 0) + return NULL_TREE; + else if (protect == 1) { - error ("request for member %qD is ambiguous", name); - print_candidates (lfi.ambiguous); + if (complain & tf_error) + { + error ("request for member %qD is ambiguous", name); + print_candidates (lfi.ambiguous); + } + return error_mark_node; } - return error_mark_node; + else if (protect == 2) + return lfi.ambiguous; } if (!rval) @@ -1213,7 +1207,7 @@ lookup_member (tree xbasetype, tree name, int protect, bool want_type, only the first call to "f" is valid. However, if the function is static, we can check. */ - if (protect && !really_overloaded_fn (rval)) + if (protect == 1 && !really_overloaded_fn (rval)) { tree decl = is_overloaded_fn (rval) ? get_first_fn (rval) : rval; decl = strip_using_decl (decl); -- 2.35.1.500.gb896f729e2