Add fibonacci sequence generation as example

CMakeLists.txt

@@ -13,6 +13,13 @@ project(
     LANGUAGES CXX
 )
 
+# [CMAKE.SKIP_EXAMPLES]
+option(
+    BEMAN_EXEMPLAR_BUILD_EXAMPLES
+    "Enable building examples. Default: ON. Values: { ON, OFF }."
+    ${PROJECT_IS_TOP_LEVEL}
+)
+
 # [CMAKE.SKIP_TESTS]
 option(
     BEMAN_INPLACE_VECTOR_BUILD_TESTS
@@ -54,3 +61,7 @@ if(BEMAN_INPLACE_VECTOR_BUILD_TESTS)
     include(CTest)
     add_subdirectory(tests/beman/inplace_vector)
 endif()
+
+if(BEMAN_EXEMPLAR_BUILD_EXAMPLES)
+    add_subdirectory(examples)
+endif()

README.md

@@ -26,7 +26,30 @@ which dynamic memory allocations are undesired.
 ### Code example
 
 ```cpp
-// TODO: Add example
+#include <array>
+#include <cassert>
+
+#include <beman/inplace_vector/inplace_vector.hpp>
+
+using namespace beman::inplace_vector;
+
+/**
+ * Generates fibonacci sequence using inplace_vector.
+ * See: https://en.wikipedia.org/wiki/Fibonacci_sequence
+ */
+template <int Capacity> inplace_vector<int, Capacity> fibonacci_to(int num) {
+  assert(num < Capacity);
+
+  inplace_vector<int, Capacity> vec;
+
+  constexpr static std::array<int, 2> first_two{0, 1};
+  for (auto i = 0; i <= num; ++i) {
+    auto new_val = i < 2 ? first_two[i] : vec[i - 1] + vec[i - 2];
+    vec.push_back(new_val);
+  }
+
+  return vec;
+}
 ```
 
 ## How to Build

examples/CMakeLists.txt

@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+set(ALL_EXAMPLES fibonacci)
+
+message("Examples to be built: ${ALL_EXAMPLES}")
+
+foreach(example ${ALL_EXAMPLES})
+    add_executable(beman.inplace_vector.examples.${example})
+    target_sources(
+        beman.inplace_vector.examples.${example}
+        PRIVATE ${example}.cpp
+    )
+    target_link_libraries(
+        beman.inplace_vector.examples.${example}
+        beman.inplace_vector
+    )
+endforeach()

examples/fibonacci.cpp

@@ -0,0 +1,48 @@
+#include <array>
+#include <cassert>
+#include <iostream>
+
+#include <beman/inplace_vector/inplace_vector.hpp>
+
+using namespace beman::inplace_vector;
+
+/**
+ * Generates fibonacci sequence using inplace_vector.
+ * See: https://en.wikipedia.org/wiki/Fibonacci_sequence
+ */
+template <int Capacity> inplace_vector<int, Capacity> fibonacci_to(int num) {
+  assert(num < Capacity);
+
+  inplace_vector<int, Capacity> vec;
+
+  constexpr static std::array<int, 2> first_two{0, 1};
+  for (auto i = 0; i <= num; ++i) {
+    auto new_val = i < 2 ? first_two[i] : vec[i - 1] + vec[i - 2];
+    vec.push_back(new_val);
+  }
+
+  return vec;
+}
+
+/**
+ * Expected program output:
+ *
+ * 0: 0
+ * 1: 1
+ * 2: 1
+ * 3: 2
+ * 4: 3
+ * 5: 5
+ * 6: 8
+ * 7: 13
+ * 8: 21
+ * 9: 34
+ * 10: 55
+ *
+ */
+int main() {
+  auto fib_seq = fibonacci_to<50>(10);
+  for (auto i = 0u; i < fib_seq.size(); ++i)
+    std::cout << i << ": " << fib_seq[i] << "\n";
+  std::cout << std::endl;
+}

include/beman/inplace_vector/inplace_vector.hpp

@@ -115,10 +115,10 @@ struct inplace_vector_base : public inplace_vector_destruct_base<T, Capacity> {
   }
   inplace_vector_base(inplace_vector_base &&other) noexcept(
       Capacity == 0 || std::is_nothrow_move_constructible_v<T>)
-      : inplace_vector_destruct_base<T, Capacity>(other.size) {
+      : inplace_vector_destruct_base<T, Capacity>(other.size_) {
     std::copy(other.begin(), other.end(), begin());
     std::destroy(other.begin(), other.end());
-    other.size = 0;
+    other.size_ = 0;
   }
   inplace_vector_base &operator=(const inplace_vector_base &other) noexcept(
       std::is_nothrow_copy_constructible_v<T> &&