From: "Arsen Arsenović" <arsen@aarsen.me>
To: gcc-patches@gcc.gnu.org
Cc: jason@redhat.com, jwakely@redhat.com, libstdc++@gcc.gnu.org
Subject: [PATCH 2/4] libstdc++: Improve output of default contract violation handler [PR107792]
Date: Sat, 10 Dec 2022 10:43:01 +0100 [thread overview]
Message-ID: <20221210094303.2180127-3-arsen@aarsen.me> (raw)
In-Reply-To: <20221210094303.2180127-1-arsen@aarsen.me>
From: Jonathan Wakely <jwakely@redhat.com>
Make the output more readable. Don't output anything unless verbose
termination is enabled at configure-time.
libstdc++-v3/ChangeLog:
PR libstdc++/107792
PR libstdc++/107778
* src/experimental/contract.cc (handle_contract_violation): Make
output more readable.
---
libstdc++-v3/src/experimental/contract.cc | 23 +++++++++++++----------
1 file changed, 13 insertions(+), 10 deletions(-)
diff --git a/libstdc++-v3/src/experimental/contract.cc b/libstdc++-v3/src/experimental/contract.cc
index c8d2697eddc..6a7f064d35e 100644
--- a/libstdc++-v3/src/experimental/contract.cc
+++ b/libstdc++-v3/src/experimental/contract.cc
@@ -1,4 +1,5 @@
// -*- C++ -*- std::experimental::contract_violation and friends
+
// Copyright (C) 2019-2022 Free Software Foundation, Inc.
//
// This file is part of GCC.
@@ -23,19 +24,21 @@
// <http://www.gnu.org/licenses/>.
#include <experimental/contract>
-#include <iostream>
+#if _GLIBCXX_HOSTED && _GLIBCXX_VERBOSE
+# include <iostream>
+#endif
__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()
+#if _GLIBCXX_HOSTED && _GLIBCXX_VERBOSE
+ const char* modes[]{ "never", "maybe" }; // Must match enumerators in header.
+ std::cerr << "contract violation in function " << violation.function_name()
+ << " at " << violation.file_name() << ':' << violation.line_number()
+ << ": " << violation.comment()
+ << "\n[level:" << violation.assertion_level()
+ << ", role:" << violation.assertion_role() << ", continuation mode:"
+ << modes[(int)violation.continuation_mode()] << ']'
<< std::endl;
+#endif
}
-
--
2.38.1
next prev parent reply other threads:[~2022-12-10 9:49 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-10 9:42 [PATCH 0/4] c++: Small tweaks to contracts Arsen Arsenović
2022-12-10 9:43 ` [PATCH 1/4] contracts: Lowercase {MAYBE,NEVER}_CONTINUE Arsen Arsenović
2022-12-10 11:15 ` Jonathan Wakely
2022-12-15 16:25 ` Jason Merrill
2022-12-15 17:39 ` Arsen Arsenović
2022-12-20 17:16 ` Jason Merrill
2022-12-10 9:43 ` Arsen Arsenović [this message]
2022-12-15 16:28 ` [PATCH 2/4] libstdc++: Improve output of default contract violation handler [PR107792] Jason Merrill
2022-12-15 17:43 ` Arsen Arsenović
2022-12-20 10:49 ` [PATCH 1/3] " Arsen Arsenović
2022-12-20 10:49 ` [PATCH 2/3] contracts: Update testsuite against new default viol. handler format Arsen Arsenović
2022-12-20 10:49 ` [PATCH 3/3] contrib: Add dg-out-generator.pl Arsen Arsenović
2022-12-20 15:57 ` Jonathan Wakely
2022-12-20 17:23 ` [PATCH 1/3] libstdc++: Improve output of default contract violation handler [PR107792] Jason Merrill
2022-12-22 11:03 ` Arsen Arsenović
2022-12-22 21:40 ` Jason Merrill
2022-12-22 22:02 ` Jonathan Wakely
2022-12-22 11:03 ` [PATCH 2/3] contracts: Update testsuite against new default viol. handler format Arsen Arsenović
2022-12-22 11:03 ` [PATCH 3/3] contrib: Add dg-out-generator.pl Arsen Arsenović
2022-12-22 21:43 ` Jason Merrill
2022-12-22 21:56 ` Arsen Arsenović
2022-12-22 22:21 ` Jason Merrill
2022-12-22 22:56 ` Arsen Arsenović
2022-12-10 9:43 ` [PATCH 3/4] contracts: Update testsuite against new default viol. handler format Arsen Arsenović
2022-12-10 9:43 ` [PATCH 4/4] contrib: Add dg-out-generator.pl Arsen Arsenović
2022-12-15 16:30 ` Jason Merrill
2022-12-15 17:30 ` Arsen Arsenović
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