Hello,
ran into the following when building libstdc++ without rtti support:
libstdc++-v3/src/c++11/cxx11-ios_failure.cc:174:54: error: no matching
function for call to 'std::ios_base::failure::failure(const char*&, int&)'
Attached patch does as follows:
ifdef rtti specific function __throw_ios_failure() by __cpp_rtti
Overloaded __throw_ios_failure(const char*, int) got introduced in
484e936e88e5, however __ios_failure() with respective signature is only
defined if __cpp_rtti is defined, hence should only be used within
contexts also guarded by __cpp_rtti.
This was done correctly for the c++98 part and probably just forgotten
for c++11.
Thanks
mirko
PS: Shouldn't this have been covered by any tests?
>From 46aa7ca34b832695b3f13167034f6aa19f44d074 Mon Sep 17 00:00:00 2001
From: Mirko Vogt <mirko.v...@sensorberg.com>
Date: Thu, 11 Feb 2021 23:18:28 +0000
Subject: [PATCH] ifdef rtti specific function __throw_ios_failure() by
__cpp_rtti
Overloaded __throw_ios_failure(const char*, int) got introduced in
484e936e88e5, however __ios_failure() with respective signature is only
defined if __cpp_rtti is defined, hence should only be used within
contexts also guarded by __cpp_rtti.
This was done correctly for the c++98 part and probably just forgotten
for c++11.
---
libstdc++-v3/src/c++11/cxx11-ios_failure.cc | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libstdc++-v3/src/c++11/cxx11-ios_failure.cc b/libstdc++-v3/src/c++11/cxx11-ios_failure.cc
index e82c1aaf63b..7edde29f0e8 100644
--- a/libstdc++-v3/src/c++11/cxx11-ios_failure.cc
+++ b/libstdc++-v3/src/c++11/cxx11-ios_failure.cc
@@ -168,10 +168,12 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
__throw_ios_failure(const char* __s __attribute__((unused)))
{ _GLIBCXX_THROW_OR_ABORT(__ios_failure(_(__s))); }
+#if __cpp_rtti
void
__throw_ios_failure(const char* str __attribute__((unused)),
int err __attribute__((unused)))
{ _GLIBCXX_THROW_OR_ABORT(__ios_failure(_(str), err)); }
+#endif
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace
--
2.20.1
