https://bugs.llvm.org/show_bug.cgi?id=45725
Bug ID: 45725
Summary: Prebuilt Windows x64 binary allows conversion from
false to pointer
Product: clang
Version: 10.0
Hardware: PC
OS: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: C++17
Assignee: unassignedclangb...@nondot.org
Reporter: ph...@seiryu.org
CC: blitzrak...@gmail.com, erik.pilking...@gmail.com,
llvm-bugs@lists.llvm.org, richard-l...@metafoo.co.uk
Created attachment 23416
--> https://bugs.llvm.org/attachment.cgi?id=23416&action=edit
test code
Prebuilt clang for Windows x64 which can be downloaded from
https://llvm.org/builds/ compiles the test code with the following output. I
tried both 11.0.0(2663a25f) and 10.0.0.
============
>"\Program Files\LLVM\bin\clang.exe" -Wall -Wextra -std=c++17 -c test1.cpp
test.cpp:6:28: warning: initialization of pointer of type 'const char *' to
null
from a constant boolean expression [-Wbool-conversion]
[[maybe_unused]] s t = false;
^~~~~
1 warning generated.
============
Expected result is error like below.
============
test.cpp:6:24: error: no viable conversion from 'bool' to 's'
[[maybe_unused]] s t = false;
^ ~~~~~
test.cpp:1:8: note: candidate constructor (the implicit copy constructor) not
viable: no known conversion from 'bool' to 'const s &' for 1st argument
struct s {
^
test.cpp:1:8: note: candidate constructor (the implicit move constructor) not
viable: no known conversion from 'bool' to 's &&' for 1st argument
struct s {
^
test.cpp:2:5: note: candidate constructor not viable: no known conversion from
'bool' to 'const char *' for 1st argument
s(const char *) {}
^
1 error generated.
============
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