https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86335
Bug ID: 86335
Summary: [9 regression] libstdc++ memory_resource gives error
on 32-bit targets
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: wilco at gcc dot gnu.org
Target Milestone: ---
The following warning happens when you use memory_resource:
...libstdc++-v3/include/experimental/memory_resource:329: warning: left shift
count >= width of type [-Wshift-count-overflow]
This is due to r261849:
if (_M_align <= (1ul << (sizeof(int) * __CHAR_BIT__)))
return sizeof(int);
These tests fail as a result:
FAIL: experimental/memory_resource/1.cc (test for excess errors)
FAIL: experimental/memory_resource/70966.cc (test for excess errors)
FAIL: experimental/memory_resource/new_delete_resource.cc (test for excess
errors)
FAIL: experimental/memory_resource/null_memory_resource.cc (test for excess
errors)
FAIL: experimental/memory_resource/resource_adaptor.cc (test for excess errors)
FAIL: experimental/type_erased_allocator/2.cc (test for excess errors)
