https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113782
Bug ID: 113782
Summary: constexpr on std::initializer_list, std::pair and
std::tuple is non-conforming for C++11
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: accepts-invalid
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: redi at gcc dot gnu.org
Target Milestone: ---
https://wg21.link/N3471 should be a C++14 change, not present in C++11 mode.
i.e. this should be rejected with -std=c++11
#include <utility>
#include <tuple>
#include <initializer_list>
constexpr std::initializer_list<int> il{1,2,3};
constexpr int i = std::move(*il.begin()) + end(il)[-1] + (int)il.size();
constexpr std::pair<int, int> p{1, 2};
constexpr int j = std::get<0>(p) + (int)(p == p);
constexpr std::tuple<int> t{1};
initializer_list changes:
r0-104226-g900484dee595d9 (this adds FE tests using -std=c++0x)
<utility> function changes:
r0-110341-g9b9e81a0a9cef8 (also touched std::pair)
std::tuple and std::pair changes:
r0-104899-g094a14eff78e4f
