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GET /api/patches/807336/?format=api
{ "id": 807336, "url": "http://patchwork.ozlabs.org/api/patches/807336/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/patch/CAFk2RUZ+yx4ftYzL5g36B90-k_4tG2ahqKJ5ZC9ouxteLkvtEQ@mail.gmail.com/", "project": { "id": 17, "url": "http://patchwork.ozlabs.org/api/projects/17/?format=api", "name": "GNU Compiler Collection", "link_name": "gcc", "list_id": "gcc-patches.gcc.gnu.org", "list_email": "gcc-patches@gcc.gnu.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<CAFk2RUZ+yx4ftYzL5g36B90-k_4tG2ahqKJ5ZC9ouxteLkvtEQ@mail.gmail.com>", "list_archive_url": null, "date": "2017-08-29T22:19:17", "name": "[C++] Make taking the address of an overloaded function a non-deduced context", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "637986ecbecf2cf204edffee3908b8a864e343b5", "submitter": { "id": 5783, "url": "http://patchwork.ozlabs.org/api/people/5783/?format=api", "name": "Ville Voutilainen", "email": "ville.voutilainen@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/gcc/patch/CAFk2RUZ+yx4ftYzL5g36B90-k_4tG2ahqKJ5ZC9ouxteLkvtEQ@mail.gmail.com/mbox/", "series": [ { "id": 495, "url": "http://patchwork.ozlabs.org/api/series/495/?format=api", "web_url": "http://patchwork.ozlabs.org/project/gcc/list/?series=495", "date": "2017-08-29T22:19:17", "name": "[C++] Make taking the address of an overloaded function a non-deduced context", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/495/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/807336/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/807336/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<gcc-patches-return-461129-incoming=patchwork.ozlabs.org@gcc.gnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": [ "patchwork-incoming@bilbo.ozlabs.org", "mailing list gcc-patches@gcc.gnu.org" ], "Authentication-Results": [ "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=gcc.gnu.org\n\t(client-ip=209.132.180.131; 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boundary=\"f4030437a2d4648c5b0557ebcd43\"" }, "content": "2017-08-29 Ville Voutilainen <ville.voutilainen@gmail.com>\n\n Make taking the address of an overloaded function a non-deduced context\n\n cp/\n\n * pt.c (unify_overload_resolution_failure): Return unify_success\n instead of unify_invalid.\n\n testsuite/\n\n * g++.dg/overload/template6.C: New.", "diff": "diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c\nindex 564ffb0..4f731fd 100644\n--- a/gcc/cp/pt.c\n+++ b/gcc/cp/pt.c\n@@ -6370,7 +6370,7 @@ unify_overload_resolution_failure (bool explain_p, tree arg)\n inform (input_location,\n \t \" could not resolve address from overloaded function %qE\",\n \t arg);\n- return unify_invalid (explain_p);\n+ return unify_success (explain_p);\n }\n \n /* Attempt to convert the non-type template parameter EXPR to the\ndiff --git a/gcc/testsuite/g++.dg/overload/template6.C b/gcc/testsuite/g++.dg/overload/template6.C\nnew file mode 100644\nindex 0000000..f2650aa\n--- /dev/null\n+++ b/gcc/testsuite/g++.dg/overload/template6.C\n@@ -0,0 +1,47 @@\n+// { dg-do compile { target c++11 } }\n+\n+template <typename>\n+struct is_function {\n+ static constexpr bool value = false;\n+};\n+\n+template <typename R, typename ...Args>\n+struct is_function<R(Args...)>\n+{\n+ static constexpr bool value = true;\n+};\n+\n+template<bool, typename> struct enable_if {};\n+\n+template<typename T> struct enable_if<true, T> \n+{\n+ typedef T type;\n+};\n+\n+template <class T>\n+struct remove_pointer\n+{\n+ typedef T type;\n+};\n+\n+template <class T>\n+struct remove_pointer<T*>\n+{\n+ typedef T type;\n+};\n+\n+void f(int) {}\n+void f(double) {}\n+\n+template <class T>\n+struct X\n+{\n+ template <class U=T,\n+\t typename enable_if<is_function<\n+\t\t\t\t typename remove_pointer<U>::type>::value,\n+\t\t\t bool>::type = false> X(U&&) {}\n+};\n+\n+int main() {\n+ X<void(*)(int)> x0(f);\n+}\n", "prefixes": [ "C++" ] }