FIX: initializer-list contruct size error

include/cont/deque.h

@@ -92,7 +92,7 @@ class deque {
         template <typename ...It>
         deque(It&& ...it) noexcept :
             data_{{std::forward<It>(it)...}},
-            f(data_.data(), sizeof...(It)),
+            f(data_.data(), N),
             r(data_.data(), sizeof...(It)) { }
 
         deque(const deque&) = delete;                   //!< No copies

test/tests/deque.cpp

@@ -39,9 +39,14 @@ namespace Tdeque {
     TEST(Tdeque, contruct) {
         deque<int, 8> q1;
         deque<int, 8> q2{1, 2, 3, 4, 5, 6, 7, 8};
+        deque<int, 8> q3{1, 2, 3, 4, 5};
 
         EXPECT_EQ (8UL, q1.capacity());
+        EXPECT_EQ (0UL, q1.size());
         EXPECT_EQ (8UL, q2.capacity());
+        EXPECT_EQ (8UL, q2.size());
+        EXPECT_EQ (8UL, q3.capacity());
+        EXPECT_EQ (5UL, q3.size());
     }
 
     // simple push-pop functionality