fixed parser memory leak (fixes #64)

also:
- build/infra improvements
- updated submodules
- updated conformance tests
- misc code review/refactors
- library version bump
- TOML version bump

Author: marzer

README.md

@@ -2,7 +2,7 @@
 [![Releases](https://img.shields.io/github/v/release/marzer/tomlplusplus?style=flat-square)](https://github.com/marzer/tomlplusplus/releases)
 [![C++17](docs/badge-C++17.svg)][cpp_compilers]
 [![C++20](docs/badge-C++20.svg)][cpp_compilers]
-[![TOML](docs/badge-TOML.svg)][v1.0.0-rc.2]
+[![TOML](docs/badge-TOML.svg)][v1.0.0-rc.3]
 [![MIT license](docs/badge-license-MIT.svg)](./LICENSE)
 [![CircleCI](https://img.shields.io/circleci/build/github/marzer/tomlplusplus?label=circle%20ci&logo=circleci&logoColor=white&style=flat-square)](https://circleci.com/gh/marzer/tomlplusplus)
 [![Mentioned in Awesome C++](docs/badge-awesome.svg)](https://github.com/fffaraz/awesome-cpp)
@@ -19,7 +19,7 @@
 # Library features
 
  - Header-only
- - Supports the latest [TOML] release ([v1.0.0-rc.2]), plus optional support for some [unreleased TOML language features]
+ - Supports the latest [TOML] release ([v1.0.0-rc.3]), plus optional support for some [unreleased TOML language features]
  - C++17 (plus some C++20 features where available, e.g. experimental support for char8_t strings)
  - Proper UTF-8 handling (incl. BOM)
  - Works with or without exceptions
@@ -165,12 +165,13 @@ defines `TOML_LANG_MAJOR`, `TOML_LANG_MINOR` and `TOML_LANG_PATCH`.
 
 > ℹ _`#define TOML_UNRELEASED_FEATURES 1` to enable these features (see [Configuration](#Configuration))._
 
-### 🔹 **TOML v1.0.0-rc.2:**
+### 🔹 **TOML v1.0.0-rc.3:**
 All features supported, including:
 - [#356]: Allow leading zeros in the exponent part of a float
 - [#567]: Control characters are not permitted in comments
 - [#571]: Allow raw tabs inside strings
 - [#665]: Make arrays heterogeneous
+- [#766]: Allow comments before commas in arrays
 
 ### 🔹 **TOML v0.5.0:**
 All features supported.
@@ -202,6 +203,7 @@ UTF-8 decoding is performed using a state machine based on Bjoern Hoehrmann's '[
 - **[@Reedbeta](https://github.com/Reedbeta)** - Fixed a bug and added additional Visual Studio debugger native visualizers
 - **[@shdnx](https://github.com/shdnx)** - Fixed a bug on GCC 8.2.0 and some meson config issues
 - **[@sobczyk](https://github.com/sobczyk)** - Reported some bugs
+- **[@sneves](https://github.com/sneves)** - Reported a bug
 - **[@traversaro](https://github.com/traversaro)** - Added vcpkg support and reported a bunch of bugs
 - **[@ximion](https://github.com/ximion)** - Added support for installation with meson
 - **[@whiterabbit963](https://github.com/whiterabbit963)** - Fixed a bug with value_or conversions
@@ -227,7 +229,7 @@ though you're welcome to reach out via other means. In order of likely response
 [TOML]: https://toml.io/
 [TOML master]: https://github.com/toml-lang/toml/blob/master/README.md
 [TOML issues list]: https://github.com/toml-lang/toml/issues
-[v1.0.0-rc.2]: https://toml.io/en/v1.0.0-rc.2
+[v1.0.0-rc.3]: https://toml.io/en/v1.0.0-rc.3
 [CONTRIBUTING]: ./CONTRIBUTING.md
 [LICENSE]: ./LICENSE
 [Flexible and Economical UTF-8 Decoder]: http://bjoern.hoehrmann.de/utf-8/decoder/dfa/
@@ -246,6 +248,7 @@ though you're welcome to reach out via other means. In order of likely response
 [#671]: https://github.com/toml-lang/toml/issues/671
 [#687]: https://github.com/toml-lang/toml/issues/687
 [#709]: https://github.com/toml-lang/toml/pull/709
+[#766]: https://github.com/toml-lang/toml/issues/766
 [LICENSE-utf8-decoder]: ./LICENSE-utf8-decoder
 [something better than std::optional]: https://github.com/TartanLlama/optional
 [m.css]: https://mcss.mosra.cz/documentation/doxygen

docs/badge-TOML.svg

@@ -6,7 +6,7 @@
 //////////////////////////////////////////////////////////////////////
 /// 
 /// \section mainpage-features Features
-/// - Supports the latest [TOML](https://toml.io/) release ([v1.0.0-rc.2](https://toml.io/en/v1.0.0-rc.2)), plus
+/// - Supports the latest [TOML](https://toml.io/) release ([v1.0.0-rc.3](https://toml.io/en/v1.0.0-rc.3)), plus
 ///   optional support for some unreleased TOML features
 /// - Supports serializing to JSON
 /// - Proper UTF-8 handling (incl. BOM)
@@ -316,7 +316,7 @@
 /// 	auto tbl = toml::table{{
 /// 		{ "lib", "toml++" },
 /// 		{ "cpp", toml::array{ 17, 20, "and beyond" } },
-/// 		{ "toml", toml::array{ "1.0.0-rc.2", "and beyond" } },
+/// 		{ "toml", toml::array{ "1.0.0-rc.3", "and beyond" } },
 /// 		{ "repo", "https://github.com/marzer/tomlplusplus/" },
 /// 		{ "author", toml::table{{
 /// 				{ "name", "Mark Gillard" },
@@ -343,7 +343,7 @@
 /// cpp = [ 17, 20, 'and beyond' ]
 /// lib = 'toml++'
 /// repo = 'https://github.com/marzer/tomlplusplus/'
-/// toml = [ '1.0.0-rc.2', 'and beyond' ]
+/// toml = [ '1.0.0-rc.3', 'and beyond' ]
 /// 
 /// [author]
 /// github = 'https://github.com/marzer'
@@ -366,7 +366,7 @@
 ///     "lib" : "toml++", 
 ///     "repo" : "https://github.com/marzer/tomlplusplus/", 
 ///     "toml" : [
-///         "1.0.0-rc.2",
+///         "1.0.0-rc.3",
 ///         "and beyond"
 ///     ]
 /// }

docs/main_page.dox

@@ -162,6 +162,7 @@ pre.m-code .c1
 }
 
 /* int and float literals */
+pre.m-code .mb,
 pre.m-code .mi,
 pre.m-code .mf,
 pre.m-code .mh

docs/muu.css

@@ -108,6 +108,7 @@ TOML_POP_WARNINGS // TOML_DISABLE_SPAM_WARNINGS
 	#undef TOML_LANG_HIGHER_THAN
 	#undef TOML_LANG_UNRELEASED
 	#undef TOML_LAUNDER
+	#undef TOML_LIFETIME_HOOKS
 	#undef TOML_LIKELY
 	#undef TOML_MAKE_BITOPS
 	#undef TOML_MAKE_VERSION

extern/Catch2

@@ -315,6 +315,11 @@ TOML_NAMESPACE_START
 				elements.emplace_back(impl::make_node(std::forward<T>(val)));
 			}
 
+			#if TOML_LIFETIME_HOOKS
+			void lh_ctor() noexcept;
+			void lh_dtor() noexcept;
+			#endif
+
 		public:
 
 			using value_type = node;
@@ -346,6 +351,9 @@ TOML_NAMESPACE_START
 			/// \brief	Move-assignment operator.
 			array& operator= (array&& rhs) noexcept;
 
+			/// \brief	Destructor.
+			~array() noexcept override;
+
 			/// \brief	Constructs an array with one or more initial elements.
 			///
 			/// \detail \cpp
@@ -395,8 +403,11 @@ TOML_NAMESPACE_START
 						...
 					);
 				}
-			}
 
+				#if TOML_LIFETIME_HOOKS
+				lh_ctor();
+				#endif
+			}
 
 			[[nodiscard]] node_type type() const noexcept override;
 			[[nodiscard]] bool is_table() const noexcept override;

extern/mcss

@@ -15,8 +15,29 @@
 
 TOML_NAMESPACE_START
 {
+	#if TOML_LIFETIME_HOOKS
+
+	TOML_EXTERNAL_LINKAGE
+	void array::lh_ctor() noexcept
+	{
+		TOML_ARRAY_CREATED;
+	}
+
 	TOML_EXTERNAL_LINKAGE
-	array::array() noexcept = default;
+	void array::lh_dtor() noexcept
+	{
+		TOML_ARRAY_DESTROYED;
+	}
+
+	#endif
+
+	TOML_EXTERNAL_LINKAGE
+	array::array() noexcept
+	{
+		#if TOML_LIFETIME_HOOKS
+		lh_ctor();
+		#endif
+	}
 
 	TOML_EXTERNAL_LINKAGE
 	array::array(const array& other) noexcept
@@ -25,13 +46,21 @@ TOML_NAMESPACE_START
 		elements.reserve(other.elements.size());
 		for (const auto& elem : other)
 			elements.emplace_back(impl::make_node(elem));
+
+		#if TOML_LIFETIME_HOOKS
+		lh_ctor();
+		#endif
 	}
 
 	TOML_EXTERNAL_LINKAGE
 	array::array(array&& other) noexcept
 		: node{ std::move(other) },
 		elements{ std::move(other.elements) }
-	{}
+	{
+		#if TOML_LIFETIME_HOOKS
+		lh_ctor();
+		#endif
+	}
 
 	TOML_EXTERNAL_LINKAGE
 	array& array::operator= (const array& rhs) noexcept
@@ -58,6 +87,14 @@ TOML_NAMESPACE_START
 		return *this;
 	}
 
+	TOML_EXTERNAL_LINKAGE
+	array::~array() noexcept
+	{
+		#if TOML_LIFETIME_HOOKS
+		lh_dtor();
+		#endif
+	}
+
 	TOML_EXTERNAL_LINKAGE
 	void array::preinsertion_resize(size_t idx, size_t count) noexcept
 	{