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| author | Gabriel Dos Reis <gdr@integrable-solutions.net> | 2003-07-14 15:04:32 +0000 |
|---|---|---|
| committer | Gabriel Dos Reis <gdr@gcc.gnu.org> | 2003-07-14 15:04:32 +0000 |
| commit | f19319dbdf17b98c1b3df97c2297bf3f72d83c85 (patch) | |
| tree | 25d7e15fa5d42bf5e8df97ae622cab9f43f20d77 | |
| parent | c573d965f95aa51fbbf1cd7df87026f38fbed1c9 (diff) | |
| download | gcc-f19319dbdf17b98c1b3df97c2297bf3f72d83c85.zip gcc-f19319dbdf17b98c1b3df97c2297bf3f72d83c85.tar.gz gcc-f19319dbdf17b98c1b3df97c2297bf3f72d83c85.tar.bz2 | |
re PR c++/5293 (confusing message when binding a temporary to a reference)
PR c++/5293
* call.c (initialize_reference): Improve diagnostic.
From-SVN: r69332
| -rw-r--r-- | gcc/cp/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/cp/call.c | 8 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/init/ref8.C | 10 |
3 files changed, 22 insertions, 1 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index 8cc0234..2627e94 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,3 +1,8 @@ +2003-07-14 Gabriel Dos Reis <gdr@integrable-solutions.net> + + PR c++/5293 + * call.c (initialize_reference): Improve diagnostic. + 2003-07-14 Kriang Lerdsuwanakij <lerdsuwa@users.sourceforge.net> PR c++/11154 diff --git a/gcc/cp/call.c b/gcc/cp/call.c index 39f8221..c71b3f8 100644 --- a/gcc/cp/call.c +++ b/gcc/cp/call.c @@ -6035,7 +6035,13 @@ initialize_reference (tree type, tree expr, tree decl) conv = reference_binding (type, TREE_TYPE (expr), expr, LOOKUP_NORMAL); if (!conv || ICS_BAD_FLAG (conv)) { - error ("could not convert `%E' to `%T'", expr, type); + if (!(TYPE_QUALS (TREE_TYPE (type)) & TYPE_QUAL_CONST) + && !real_lvalue_p (expr)) + error ("invalid initialization of non-const reference of " + "type '%T' from a temporary of type '%T'", + type, TREE_TYPE (expr)); + else + error ("could not convert `%E' to `%T'", expr, type); return error_mark_node; } diff --git a/gcc/testsuite/g++.dg/init/ref8.C b/gcc/testsuite/g++.dg/init/ref8.C new file mode 100644 index 0000000..406cc10 --- /dev/null +++ b/gcc/testsuite/g++.dg/init/ref8.C @@ -0,0 +1,10 @@ +struct A { + A operator=(const A&); +}; + +A operator*(A, A); + +A& operator+=(A& a, const A& b) +{ + return a = a * b; // { dg-error "non-const reference" } +} |