157452 2016-05-07 09:52:30 -0700 NeverDestroyed<> constructor does not pass std::initializer_list correctly 2017-07-21 20:23:35 -0700 1 1 1 Unclassified WebKit Web Template Framework Other Unspecified Unspecified RESOLVED DUPLICATE 132348 P2 Normal --- 1 jer.noble webkit-unassigned darin oldest_to_newest 1190939 0 278325 jer.noble 2016-05-07 09:52:30 -0700 Created attachment 278325 TestCase.cpp The following code fails to compile: #include <wtf/NeverDestroyed.h> #include <wtf/Vector.h> int main() { Vector<int> v1 = {1, 2, 3}; // OK NeverDestroyed<Vector<int>> v2 = {1, 2, 3}; // "error: no matching constructor for initialization of 'WTF::Vector<int, 0, WTF::CrashOnOverflow, 16>" return 0; } This is likely because the "std::forward<Args>(args)..." in the NeverDestroyed constructor unrolls the initializer_list into a sequence of parameters, rather than passing it unadulterated. 1331263 1 darin 2017-07-21 20:23:35 -0700 *** This bug has been marked as a duplicate of bug 132348 *** 278325 2016-05-07 09:52:30 -0700 2016-05-07 09:52:30 -0700 TestCase.cpp NeverDestroyedInitializerList.cpp application/octet-stream 156 jer.noble I2luY2x1ZGUgPHd0Zi9OZXZlckRlc3Ryb3llZC5oPgojaW5jbHVkZSA8d3RmL1ZlY3Rvci5oPgoK aW50IG1haW4oKQp7CglWZWN0b3I8aW50PiB2MSA9IHsxLCAyLCAzfTsKCU5ldmVyRGVzdHJveWVk PFZlY3RvcjxpbnQ+PiB2MiA9IHsxLCAyLCAzfTsKCXJldHVybiAwOwp9