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-rw-r--r--test/std/containers/sequences/array/indexing.pass.cpp29
1 files changed, 28 insertions, 1 deletions
diff --git a/test/std/containers/sequences/array/indexing.pass.cpp b/test/std/containers/sequences/array/indexing.pass.cpp
index 43c494777a9d..7718b92f989e 100644
--- a/test/std/containers/sequences/array/indexing.pass.cpp
+++ b/test/std/containers/sequences/array/indexing.pass.cpp
@@ -56,7 +56,34 @@ int main()
C::const_reference r2 = c[2];
assert(r2 == 3.5);
}
-
+ { // Test operator[] "works" on zero sized arrays
+ typedef double T;
+ typedef std::array<T, 0> C;
+ C c = {};
+ C const& cc = c;
+ static_assert((std::is_same<decltype(c[0]), T &>::value), "");
+ static_assert((std::is_same<decltype(cc[0]), const T &>::value), "");
+ if (c.size() > (0)) { // always false
+ C::reference r1 = c[0];
+ C::const_reference r2 = cc[0];
+ ((void)r1);
+ ((void)r2);
+ }
+ }
+ { // Test operator[] "works" on zero sized arrays
+ typedef double T;
+ typedef std::array<const T, 0> C;
+ C c = {{}};
+ C const& cc = c;
+ static_assert((std::is_same<decltype(c[0]), const T &>::value), "");
+ static_assert((std::is_same<decltype(cc[0]), const T &>::value), "");
+ if (c.size() > (0)) { // always false
+ C::reference r1 = c[0];
+ C::const_reference r2 = cc[0];
+ ((void)r1);
+ ((void)r2);
+ }
+ }
#if TEST_STD_VER > 11
{
typedef double T;