https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83242
Bug ID: 83242
Summary: Never executed "throw" in constexpr function fails to
compile
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: benni.buch at gmail dot com
Target Milestone: ---
constexpr int f(){
if(true) return 0;
throw 0;
}
int main(){
constexpr auto i = f();
}
Probably related to Bug 67371
$ g++ -std=c++14 main.cpp
main.cpp: In function 'constexpr int f()':
main.cpp:3:11: error: expression '<throw-expression>' is not a constant
expression
throw 0;
^
main.cpp: In function 'int main()':
main.cpp:7:25: error: 'constexpr int f()' called in a constant expression
constexpr auto i = f();
~^~
$ g++ --version
g++ (GCC) 8.0.0 20171201 (experimental)
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
