https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91040
Bug ID: 91040
Summary: Incorrect "invalid use of non-lvalue array" error in
conditional assignment with throw
Product: gcc
Version: 9.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: mark.curtis at bom dot gov.au
Target Milestone: ---
The following code fails to compile on gcc 9.1.0 with an "invalid use of
non-lvalue array" error.
void foo(bool condition)
{
char const* str = condition ? "foo" : throw 1;
}
This code compiles on the 8 series and earlier, as well as clang. According to
the C++ standard section on the conditional operator, in the case that either
the second or third operand is a throw expression, "the result is of the type
and value category of the other".
