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authorJeff Chapman II <jchapman@lock3software.com>2022-11-03 15:47:19 -0400
committerJason Merrill <jason@redhat.com>2022-11-18 21:40:29 -0500
commitea63396f6b08f88f1cde827e6cab94cd488f7fa7 (patch)
treece183d1127e1f26aea84d5d6092e00648c4a77d2 /libstdc++-v3/src/experimental/contract.cc
parenta7aef0a5a2b7e20048275a29bd80674c1a061a24 (diff)
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libstdc++: add experimental Contracts support
This patch adds the library support for the experimental C++ Contracts implementation. This now consists only of a default definition of the violation handler, which users can override through defining their own version. To avoid ABI stability problems with libstdc++.so this is added to a separate -lstdc++exp static library, which the driver knows to add when it sees -fcontracts. Co-authored-by: Andrew Marmaduke <amarmaduke@lock3software.com> Co-authored-by: Jason Merrill <jason@redhat.com> libstdc++-v3/ChangeLog: * acinclude.m4 (glibcxx_SUBDIRS): Add src/experimental. * include/Makefile.am (experimental_headers): Add contract. * include/Makefile.in: Regenerate. * src/Makefile.am (SUBDIRS): Add experimental. * src/Makefile.in: Regenerate. * configure: Regenerate. * src/experimental/contract.cc: New file. * src/experimental/Makefile.am: New file. * src/experimental/Makefile.in: New file. * include/experimental/contract: New file.
Diffstat (limited to 'libstdc++-v3/src/experimental/contract.cc')
-rw-r--r--libstdc++-v3/src/experimental/contract.cc41
1 files changed, 41 insertions, 0 deletions
diff --git a/libstdc++-v3/src/experimental/contract.cc b/libstdc++-v3/src/experimental/contract.cc
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+++ b/libstdc++-v3/src/experimental/contract.cc
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+// -*- C++ -*- std::experimental::contract_violation and friends
+// Copyright (C) 2019-2022 Free Software Foundation, Inc.
+//
+// This file is part of GCC.
+//
+// GCC is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// GCC is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+#include <experimental/contract>
+#include <iostream>
+
+__attribute__ ((weak)) void
+handle_contract_violation (const std::experimental::contract_violation &violation)
+{
+ std::cerr << "default std::handle_contract_violation called: \n"
+ << " " << violation.file_name()
+ << " " << violation.line_number()
+ << " " << violation.function_name()
+ << " " << violation.comment()
+ << " " << violation.assertion_level()
+ << " " << violation.assertion_role()
+ << " " << (int)violation.continuation_mode()
+ << std::endl;
+}
+