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* [Bug c++/107070] New: GCC thinks !!b is an lvalue (bool b;)
@ 2022-09-28 15:33 nir.livne at gmail dot com
2022-09-28 15:34 ` [Bug c++/107070] " mpolacek at gcc dot gnu.org
0 siblings, 1 reply; 2+ messages in thread
From: nir.livne at gmail dot com @ 2022-09-28 15:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107070
Bug ID: 107070
Summary: GCC thinks !!b is an lvalue (bool b;)
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: nir.livne at gmail dot com
Target Milestone: ---
#include <iostream>
// gcc result: 0 1
// clang result: 1 1
// msvc result: 1 1
int main() {
bool b = true;
// #1 GCC result with 0 while it should be 1
std::cout << std::is_same<decltype(!(!b)), bool>::value << "\n";
auto bb = (!(!b));
std::cout << std::is_same<decltype(bb), bool>::value << "\n";
// #2 this should not compile
// !!b = true;
}
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug c++/107070] GCC thinks !!b is an lvalue (bool b;)
2022-09-28 15:33 [Bug c++/107070] New: GCC thinks !!b is an lvalue (bool b;) nir.livne at gmail dot com
@ 2022-09-28 15:34 ` mpolacek at gcc dot gnu.org
0 siblings, 0 replies; 2+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2022-09-28 15:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107070
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mpolacek at gcc dot gnu.org
Status|UNCONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
.
*** This bug has been marked as a duplicate of bug 107065 ***
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2022-09-28 15:34 UTC | newest]
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2022-09-28 15:33 [Bug c++/107070] New: GCC thinks !!b is an lvalue (bool b;) nir.livne at gmail dot com
2022-09-28 15:34 ` [Bug c++/107070] " mpolacek at gcc dot gnu.org
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