[committed] libstdc++: Add unused attributes to shared_ptr functions
Jonathan Wakely
jwakely@redhat.com
Fri Feb 12 14:46:10 GMT 2021
This avoids some warnings when building with -fno-rtti because the
function parameters are only used when RTTI is enabled.
libstdc++-v3/ChangeLog:
* include/bits/shared_ptr_base.h (__shared_ptr::_M_get_deleter):
Add unused attribute to parameter.
* src/c++11/shared_ptr.cc (_Sp_make_shared_tag::_S_eq):
Likewise.
Tested powerpc64le-linux. Committed to trunk.
-------------- next part --------------
commit 87eaa3c525eb65775e6d77403b83a273a2397099
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Fri Feb 12 10:36:18 2021
libstdc++: Add unused attributes to shared_ptr functions
This avoids some warnings when building with -fno-rtti because the
function parameters are only used when RTTI is enabled.
libstdc++-v3/ChangeLog:
* include/bits/shared_ptr_base.h (__shared_ptr::_M_get_deleter):
Add unused attribute to parameter.
* src/c++11/shared_ptr.cc (_Sp_make_shared_tag::_S_eq):
Likewise.
diff --git a/libstdc++-v3/include/bits/shared_ptr_base.h b/libstdc++-v3/include/bits/shared_ptr_base.h
index 15707f8e74a..b24900b2008 100644
--- a/libstdc++-v3/include/bits/shared_ptr_base.h
+++ b/libstdc++-v3/include/bits/shared_ptr_base.h
@@ -450,7 +450,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
}
virtual void*
- _M_get_deleter(const std::type_info& __ti) noexcept
+ _M_get_deleter(const type_info& __ti [[__gnu__::__unused__]]) noexcept
{
#if __cpp_rtti
// _GLIBCXX_RESOLVE_LIB_DEFECTS
diff --git a/libstdc++-v3/src/c++11/shared_ptr.cc b/libstdc++-v3/src/c++11/shared_ptr.cc
index 13e2d520199..4678fbeffe2 100644
--- a/libstdc++-v3/src/c++11/shared_ptr.cc
+++ b/libstdc++-v3/src/c++11/shared_ptr.cc
@@ -97,7 +97,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
#endif
bool
- _Sp_make_shared_tag::_S_eq(const type_info& ti) noexcept
+ _Sp_make_shared_tag::_S_eq(const type_info& ti [[gnu::unused]]) noexcept
{
#if __cpp_rtti
return ti == typeid(_Sp_make_shared_tag);
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