From 233aedf4c30248e5504afca2e421e22c3b33c96c Mon Sep 17 00:00:00 2001 From: Jason Merrill Date: Fri, 24 Jan 2014 14:05:39 -0500 Subject: [PATCH] re PR c++/58550 (][c++11] ICE with auto in function return type and lto) PR c++/58550 * decl.c (grokdeclarator): Turn pedwarn about auto return type in c++11 into error. From-SVN: r207055 --- gcc/cp/ChangeLog | 4 ++++ gcc/cp/decl.c | 7 ++++++- gcc/testsuite/g++.dg/cpp0x/auto41.C | 5 +++++ 3 files changed, 15 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/g++.dg/cpp0x/auto41.C diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index 4485108ac08..52394b3f0ca 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,5 +1,9 @@ 2014-01-24 Jason Merrill + PR c++/58550 + * decl.c (grokdeclarator): Turn pedwarn about auto return type in + c++11 into error. + PR c++/59886 PR c++/59659 * typeck2.c (process_init_constructor_array): Don't create diff --git a/gcc/cp/decl.c b/gcc/cp/decl.c index f4819a6c9cb..aaafaa86a36 100644 --- a/gcc/cp/decl.c +++ b/gcc/cp/decl.c @@ -9599,9 +9599,14 @@ grokdeclarator (const cp_declarator *declarator, && LAMBDA_TYPE_P (current_class_type)) /* OK for C++11 lambdas. */; else if (cxx_dialect < cxx1y) - pedwarn (input_location, 0, "%qs function uses " + { + error ("%qs function uses " "% type specifier without trailing " "return type", name); + inform (input_location, "deduced return type " + "only available with -std=c++1y or " + "-std=gnu++1y"); + } else if (virtualp) permerror (input_location, "virtual function cannot " "have deduced return type"); diff --git a/gcc/testsuite/g++.dg/cpp0x/auto41.C b/gcc/testsuite/g++.dg/cpp0x/auto41.C new file mode 100644 index 00000000000..6f102e7c9f5 --- /dev/null +++ b/gcc/testsuite/g++.dg/cpp0x/auto41.C @@ -0,0 +1,5 @@ +// PR c++/58550 +// { dg-options "-std=c++11" } + +auto foo(); // { dg-error "auto" } +auto fp = foo; -- 2.30.2