Merge branch 'use_optional'

Conflicts:
	.travis.yml

.travis.yml

@@ -2,10 +2,18 @@ language: cpp
 compiler:
   - gcc
   - clang
+env:
+  - SDL2PP_CSTD=c++11
+  - SDL2PP_CSTD=c++1y
 before_install:
   - sudo add-apt-repository --yes ppa:zoogie/sdl2-snapshots
   - sudo add-apt-repository --yes ppa:ubuntu-toolchain-r/test
   - sudo apt-get update -qq
   - sudo apt-get install -qq cmake libsdl2-dev libsdl2-image-dev g++-4.8 cppcheck
   - if [ "$CXX" = "g++" ]; then export CXX="g++-4.8" CC="gcc-4.8"; fi
-script: cmake . -DSDL2PP_ENABLE_GUI_TEST=OFF -DCMAKE_INSTALL_PREFIX=`pwd`/_prefix -DSDL2PP_WITH_WERROR=YES && make && make test && make install && cppcheck -I . --enable=style,performance,portability,information,missingInclude --error-exitcode=2 SDL2pp
+script:
+  - cmake . -DSDL2PP_ENABLE_GUI_TEST=OFF -DCMAKE_INSTALL_PREFIX=`pwd`/_prefix -DSDL2PP_WITH_WERROR=YES -DSDL2PP_CSTD=$SDL2PP_CSTD
+  - make
+  - make test
+  - make install
+  - cppcheck -I . --enable=style,performance,portability,information,missingInclude --error-exitcode=2 SDL2pp

CMakeLists.txt

@@ -16,6 +16,8 @@ SET(SDL2PP_VERSION "${SDL2PP_MAJOR_VERSION}.${SDL2PP_MINOR_VERSION}.${SDL2PP_PAT
 OPTION(SDL2PP_WITH_2_0_4 "Enable new functions available only in SDL2 2.0.4+" OFF)
 OPTION(SDL2PP_WITH_WERROR "Make warnings fatal" OFF)
 
+SET(SDL2PP_CSTD "c++11" CACHE STRING "Used c++ standard")
+
 IF(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
 	OPTION(SDL2PP_WITH_IMAGE "Enable SDL2_image support" ON)
 ELSE(CMAKE_SOURCE_DIR STREQUAL PROJECT_SOURCE_DIR)
@@ -39,7 +41,7 @@ IF(MSVC)
 	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W3")
 	SET(WERROR_FLAG "/WX")
 ELSE(MSVC)
-	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall -Wextra -pedantic")
+	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=${SDL2PP_CSTD} -Wall -Wextra -pedantic")
 	SET(WERROR_FLAG "-Werror")
 ENDIF(MSVC)
 
@@ -52,6 +54,19 @@ IF(SDL2PP_WITH_WERROR)
 	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${WERROR_FLAG}")
 ENDIF(SDL2PP_WITH_WERROR)
 
+# platform checks
+INCLUDE(CheckCompile)
+CHECK_COMPILE(
+	SDL2PP_WITH_EXPERIMENTAL_OPTIONAL
+	${PROJECT_SOURCE_DIR}/cmake/std_experimental_optional_test.cc
+	"Checking for experimental/optional header"
+)
+CHECK_COMPILE(
+	SDL2PP_WITH_DEPRECATED
+	${PROJECT_SOURCE_DIR}/cmake/attribute_deprecated_test.cc
+	"Checking for [[deprecated]] attribute"
+)
+
 # config.h
 CONFIGURE_FILE(
 	SDL2pp/Config.hh.in

README.md

@@ -28,11 +28,11 @@ try {
 
   renderer.Clear();
 
-  // Also note a way to specify null rects
+  // Also note a way to specify null rects and points
-  renderer.Copy(sprite1, SDL2pp::Rect::Null(), SDL2pp::Rect::Null());
+  renderer.Copy(sprite1, SDL2pp::NullOpt, SDL2pp::NullOpt);
 
   // Copy() is overloaded, providing access to both SDL_RenderCopy and SDL_RenderCopyEx
-  renderer.Copy(sprite2, SDL2pp::Rect::Null(), SDL2pp::Rect::Null(), 45.0);
+  renderer.Copy(sprite2, SDL2pp::NullOpt, SDL2pp::NullOpt, 45.0);
 
   renderer.Present();
 

SDL2pp/AudioDevice.cc

@@ -31,7 +31,7 @@ void AudioDevice::SDLCallback(void *userdata, Uint8* stream, int len) {
 	audiodevice->callback_(stream, len);
 }
 
-AudioDevice::AudioDevice(const std::string& device, bool iscapture, const AudioSpec& spec, AudioDevice::AudioCallback&& callback) {
+AudioDevice::AudioDevice(const Optional<std::string>& device, bool iscapture, const AudioSpec& spec, AudioDevice::AudioCallback&& callback) {
 	SDL_AudioSpec spec_with_callback = *spec.Get();
 	if (callback) {
 		spec_with_callback.callback = SDLCallback;
@@ -39,13 +39,13 @@ AudioDevice::AudioDevice(const std::string& device, bool iscapture, const AudioS
 	}
 	SDL_AudioSpec obtained;
 
-	if ((device_id_ = SDL_OpenAudioDevice(device.empty() ? nullptr : device.c_str(), iscapture ? 1 : 0, &spec_with_callback, &obtained, 0)) == 0)
+	if ((device_id_ = SDL_OpenAudioDevice(device ? device->c_str() : nullptr, iscapture ? 1 : 0, &spec_with_callback, &obtained, 0)) == 0)
 		throw Exception("SDL_OpenAudioDevice failed");
 
 	callback_ = std::move(callback);
 }
 
-AudioDevice::AudioDevice(const std::string& device, bool iscapture, AudioSpec& spec, int allowed_changes, AudioDevice::AudioCallback&& callback) {
+AudioDevice::AudioDevice(const Optional<std::string>& device, bool iscapture, AudioSpec& spec, int allowed_changes, AudioDevice::AudioCallback&& callback) {
 	SDL_AudioSpec spec_with_callback = *spec.Get();
 	if (callback) {
 		spec_with_callback.callback = SDLCallback;
@@ -53,7 +53,7 @@ AudioDevice::AudioDevice(const std::string& device, bool iscapture, AudioSpec& s
 	}
 	SDL_AudioSpec obtained;
 
-	if ((device_id_ = SDL_OpenAudioDevice(device.empty() ? nullptr : device.c_str(), iscapture ? 1 : 0, &spec_with_callback, &obtained, allowed_changes)) == 0)
+	if ((device_id_ = SDL_OpenAudioDevice(device ? device->c_str() : nullptr, iscapture ? 1 : 0, &spec_with_callback, &obtained, allowed_changes)) == 0)
 		throw Exception("SDL_OpenAudioDevice failed");
 
 	spec.MergeChanges(obtained);

SDL2pp/AudioDevice.hh

@@ -27,6 +27,7 @@
 
 #include <SDL2/SDL_audio.h>
 
+#include <SDL2pp/Optional.hh>
 #include <SDL2pp/Config.hh>
 
 namespace SDL2pp {
@@ -64,8 +65,8 @@ private:
 	static void SDLCallback(void *userdata, Uint8* stream, int len);
 
 public:
-	AudioDevice(const std::string& device, bool iscapture, const AudioSpec& spec, AudioCallback&& callback = AudioCallback());
+	AudioDevice(const Optional<std::string>& device, bool iscapture, const AudioSpec& spec, AudioCallback&& callback = AudioCallback());
-	AudioDevice(const std::string& device, bool iscapture, AudioSpec& spec, int allowed_changes, AudioCallback&& callback = AudioCallback());
+	AudioDevice(const Optional<std::string>& device, bool iscapture, AudioSpec& spec, int allowed_changes, AudioCallback&& callback = AudioCallback());
 	virtual ~AudioDevice();
 
 	AudioDevice(const AudioDevice& other) = delete;

SDL2pp/Config.hh.in

@@ -30,5 +30,13 @@
 
 #cmakedefine SDL2PP_WITH_IMAGE
 #cmakedefine SDL2PP_WITH_2_0_4
+#cmakedefine SDL2PP_WITH_EXPERIMENTAL_OPTIONAL
+#cmakedefine SDL2PP_WITH_DEPRECATED
+
+#if defined(SDL2PP_WITH_DEPRECATED)
+#	define SDL2PP_DEPRECATED [[deprecated]]
+#else
+#	define SDL2PP_DEPRECATED
+#endif
 
 #endif

SDL2pp/Optional.hh

@@ -22,7 +22,26 @@
 #ifndef SDL2PP_OPTIONAL_HH
 #define SDL2PP_OPTIONAL_HH
 
-#include <SDL2pp/external/libcpp_optional.hh>
+#include <SDL2pp/Config.hh>
+
+#if defined(SDL2PP_WITH_EXPERIMENTAL_OPTIONAL)
+
+#	include <experimental/optional>
+
+namespace SDL2pp {
+
+template<typename T>
+using Optional = std::experimental::optional<T>;
+
+using BadOptionalAccess = std::experimental::bad_optional_access;
+
+constexpr std::experimental::nullopt_t NullOpt = std::experimental::nullopt;
+
+}
+
+#else
+
+#	include <SDL2pp/external/libcpp_optional.hh>
 
 namespace SDL2pp {
 
@@ -36,3 +55,5 @@ constexpr sdl2pp_libcpp_optional::nullopt_t NullOpt = sdl2pp_libcpp_optional::nu
 }
 
 #endif
+
+#endif

SDL2pp/Point.cc

@@ -25,25 +25,22 @@
 
 namespace SDL2pp {
 
-Point::Point() : valid_(false) {
+Point::Point() {
+	x = 0;
+	y = 0;
 }
 
-Point::~Point() {
+Point::Point(int nx, int ny) {
+	x = nx;
+	y = ny;
 }
 
-Point::Point(int x, int y) : valid_(true) {
+Optional<Point> Point::Null() {
-	point_.x = x;
+	return NullOpt;
-	point_.y = y;
-}
-
-Point Point::Null() {
-	return Point();
 }
 
 bool Point::operator==(const Point& other) const {
-	if (!valid_ || !other.valid_)
+	return x == other.x && y == other.y;
-		return valid_ == other.valid_; // true only if both null
-	return point_.x == other.point_.x && point_.y == other.point_.y;
 }
 
 bool Point::operator!=(const Point& other) const {
@@ -51,67 +48,51 @@ bool Point::operator!=(const Point& other) const {
 }
 
 SDL_Point* Point::Get() {
-	return valid_ ? &point_ : nullptr;
+	return this;
 }
 
 const SDL_Point* Point::Get() const {
-	return valid_ ? &point_ : nullptr;
+	return this;
 }
 
 bool Point::IsNull() const {
-	return !valid_;
+	return false;
 }
 
 int Point::GetX() const {
-	assert(!IsNull());
+	return x;
-	return point_.x;
 }
 
-void Point::SetX(int x) {
+void Point::SetX(int nx) {
-	assert(!IsNull());
+	x = nx;
-	point_.x = x;
 }
 
 int Point::GetY() const {
-	assert(!IsNull());
+	return y;
-	return point_.y;
 }
 
-void Point::SetY(int y) {
+void Point::SetY(int ny) {
-	assert(!IsNull());
+	y = ny;
-	point_.y = y;
 }
 
 Point Point::operator+(const Point& other) const {
-	if (!valid_ || !other.valid_)
+	return Point(x + other.x, y + other.y);
-		return Point();
-	return Point(point_.x + other.point_.x, point_.y + other.point_.y);
 }
 
 Point Point::operator-(const Point& other) const {
-	if (!valid_ || !other.valid_)
+	return Point(x - other.x, y - other.y);
-		return Point();
-	return Point(point_.x - other.point_.x, point_.y - other.point_.y);
 }
 
 Point& Point::operator+=(const Point& other) {
-	if (!valid_ || !other.valid_) {
+	x += other.x;
-		valid_ = false;
+	y += other.y;
-	} else {
-		point_.x += other.point_.x;
-		point_.y += other.point_.y;
-	}
 
 	return *this;
 }
 
 Point& Point::operator-=(const Point& other) {
-	if (!valid_ || !other.valid_) {
+	x -= other.x;
-		valid_ = false;
+	y -= other.y;
-	} else {
-		point_.x -= other.point_.x;
-		point_.y -= other.point_.y;
-	}
 
 	return *this;
 }

SDL2pp/Point.hh

@@ -24,21 +24,17 @@
 
 #include <SDL2/SDL_rect.h>
 
+#include <SDL2pp/Config.hh>
+#include <SDL2pp/Optional.hh> // for deprecated functionality
+
 namespace SDL2pp {
 
-class Point {
+class Point : public SDL_Point{
-private:
-	SDL_Point point_;
-	bool valid_;
-
-private:
-	Point();
-
 public:
-	Point(int x, int y);
+	Point();
-	virtual ~Point();
+	Point(int nx, int ny);
 
-	static Point Null();
+	SDL2PP_DEPRECATED static Optional<Point> Null();
 
 	Point(const Point&) noexcept = default;
 	Point(Point&&) noexcept = default;
@@ -48,16 +44,16 @@ public:
 	bool operator==(const Point& other) const;
 	bool operator!=(const Point& other) const;
 
-	SDL_Point* Get();
+	SDL2PP_DEPRECATED SDL_Point* Get();
-	const SDL_Point* Get() const;
+	SDL2PP_DEPRECATED const SDL_Point* Get() const;
 
-	bool IsNull() const;
+	SDL2PP_DEPRECATED bool IsNull() const;
 
 	int GetX() const;
-	void SetX(int x);
+	void SetX(int nx);
 
 	int GetY() const;
-	void SetY(int y);
+	void SetY(int ny);
 
 	Point operator+(const Point& other) const;
 	Point operator-(const Point& other) const;

SDL2pp/Rect.cc

@@ -27,28 +27,27 @@
 
 namespace SDL2pp {
 
-Rect::Rect() : valid_(false) {
+Rect::Rect() {
+	x = 0;
+	y = 0;
+	w = 0;
+	h = 0;
 }
 
-Rect::~Rect() {
+Rect::Rect(int nx, int ny, int nw, int nh) {
+	x = nx;
+	y = ny;
+	w = nw;
+	h = nh;
 }
 
-Rect::Rect(int x, int y, int w, int h) : valid_(true) {
+Optional<Rect> Rect::Null() {
-	rect_.x = x;
+	return NullOpt;
-	rect_.y = y;
-	rect_.w = w;
-	rect_.h = h;
-}
-
-Rect Rect::Null() {
-	return Rect();
 }
 
 bool Rect::operator==(const Rect& other) const {
-	if (!valid_ || !other.valid_)
+	return x == other.x && y == other.y &&
-		return valid_ == other.valid_; // true only if both null
+	       w == other.w && h == other.h;
-	return rect_.x == other.rect_.x && rect_.y == other.rect_.y &&
-	       rect_.w == other.rect_.w && rect_.h == other.rect_.h;
 }
 
 bool Rect::operator!=(const Rect& other) const {
@@ -56,11 +55,11 @@ bool Rect::operator!=(const Rect& other) const {
 }
 
 SDL_Rect* Rect::Get() {
-	return valid_ ? &rect_ : nullptr;
+	return this;
 }
 
 const SDL_Rect* Rect::Get() const {
-	return valid_ ? &rect_ : nullptr;
+	return this;
 }
 
 Rect Rect::FromCenter(int cx, int cy, int w, int h) {
@@ -68,101 +67,79 @@ Rect Rect::FromCenter(int cx, int cy, int w, int h) {
 }
 
 bool Rect::IsNull() const {
-	return !valid_;
+	return false;
 }
 
 int Rect::GetX() const {
-	assert(!IsNull());
+	return x;
-	return rect_.x;
 }
 
-void Rect::SetX(int x) {
+void Rect::SetX(int nx) {
-	assert(!IsNull());
+	x = nx;
-	rect_.x = x;
 }
 
 int Rect::GetY() const {
-	assert(!IsNull());
+	return y;
-	return rect_.y;
 }
 
-void Rect::SetY(int y) {
+void Rect::SetY(int ny) {
-	assert(!IsNull());
+	y = ny;
-	rect_.y = y;
 }
 
 int Rect::GetW() const {
-	assert(!IsNull());
+	return w;
-	return rect_.w;
 }
 
-void Rect::SetW(int w) {
+void Rect::SetW(int nw) {
-	assert(!IsNull());
+	w = nw;
-	rect_.w = w;
 }
 
 int Rect::GetH() const {
-	assert(!IsNull());
+	return h;
-	return rect_.h;
 }
 
-void Rect::SetH(int h) {
+void Rect::SetH(int nh) {
-	assert(!IsNull());
+	h = nh;
-	rect_.h = h;
 }
 
 int Rect::GetX2() const {
-	assert(!IsNull());
+	return x + w - 1;
-	return rect_.x + rect_.w - 1;
 }
 
 void Rect::SetX2(int x2) {
-	assert(!IsNull());
+	w = x2 - x + 1;
-	rect_.w = x2 - rect_.x + 1;
 }
 
 int Rect::GetY2() const {
-	assert(!IsNull());
+	return y + h - 1;
-	return rect_.y + rect_.h - 1;
 }
 
 void Rect::SetY2(int y2) {
-	assert(!IsNull());
+	h = y2 - y + 1;
-	rect_.h = y2 - rect_.y + 1;
 }
 
 bool Rect::Contains(const Point& point) const {
-	if (IsNull() || point.IsNull())
+	return !(point.x < x || point.y < y || point.x > GetX2() || point.y > GetY2());
-		return false;
-	return !(point.GetX() < GetX() || point.GetY() < GetY() || point.GetX() > GetX2() || point.GetY() > GetY2());
 }
 
 Rect Rect::operator+(const Point& offset) const {
-	assert(!IsNull() && !offset.IsNull());
+	return Rect(x + offset.x, y + offset.y, w, h);
-
-	return Rect(rect_.x + offset.GetX(), rect_.y + offset.GetY(), rect_.w, rect_.h);
 }
 
 Rect& Rect::operator+=(const Point& offset) {
-	assert(!IsNull() && !offset.IsNull());
+	x += offset.x;
-
+	y += offset.y;
-	rect_.x += offset.GetX();
-	rect_.y += offset.GetY();
 
 	return *this;
 }
 
 Rect Rect::operator-(const Point& offset) const {
-	assert(!IsNull() && !offset.IsNull());
+	return Rect(x - offset.x, y - offset.y, w, h);
-
-	return Rect(rect_.x - offset.GetX(), rect_.y - offset.GetY(), rect_.w, rect_.h);
 }
 
 Rect& Rect::operator-=(const Point& offset) {
-	assert(!IsNull() && !offset.IsNull());
+	x -= offset.x;
-
+	y -= offset.y;
-	rect_.x -= offset.GetX();
-	rect_.y -= offset.GetY();
 
 	return *this;
 }

SDL2pp/Rect.hh

@@ -24,25 +24,21 @@
 
 #include <SDL2/SDL_rect.h>
 
+#include <SDL2pp/Config.hh>
+#include <SDL2pp/Optional.hh> // for deprecated functionality
+
 struct SDL_Rect;
 
 namespace SDL2pp {
 
 class Point;
 
-class Rect {
+class Rect : public SDL_Rect {
-private:
-	SDL_Rect rect_;
-	bool valid_;
-
-private:
-	Rect();
-
 public:
+	Rect();
 	Rect(int x, int y, int w, int h);
-	virtual ~Rect();
 
-	static Rect Null();
+	SDL2PP_DEPRECATED static Optional<Rect> Null();
 
 	static Rect FromCenter(int cx, int cy, int w, int h);
 
@@ -54,10 +50,11 @@ public:
 	bool operator==(const Rect& other) const;
 	bool operator!=(const Rect& other) const;
 
-	SDL_Rect* Get();
+	// deprecated
-	const SDL_Rect* Get() const;
+	SDL2PP_DEPRECATED SDL_Rect* Get();
+	SDL2PP_DEPRECATED const SDL_Rect* Get() const;
 
-	bool IsNull() const;
+	SDL2PP_DEPRECATED bool IsNull() const;
 
 	int GetX() const;
 	void SetX(int x);

SDL2pp/Renderer.cc

@@ -27,8 +27,6 @@
 #include <SDL2pp/Window.hh>
 #include <SDL2pp/Exception.hh>
 #include <SDL2pp/Texture.hh>
-#include <SDL2pp/Rect.hh>
-#include <SDL2pp/Point.hh>
 
 namespace SDL2pp {
 
@@ -74,13 +72,13 @@ void Renderer::GetInfo(SDL_RendererInfo* info) {
 		throw Exception("SDL_GetRendererInfo failed");
 }
 
-void Renderer::Copy(Texture& texture, const Rect& srcrect, const Rect& dstrect) {
+void Renderer::Copy(Texture& texture, const Optional<Rect>& srcrect, const Optional<Rect>& dstrect) {
-	if (SDL_RenderCopy(renderer_, texture.Get(), srcrect.Get(), dstrect.Get()) != 0)
+	if (SDL_RenderCopy(renderer_, texture.Get(), srcrect ? &*srcrect : nullptr, dstrect ? &*dstrect : nullptr) != 0)
 		throw Exception("SDL_RenderCopy failed");
 }
 
-void Renderer::Copy(Texture& texture, const Rect& srcrect, const Rect& dstrect, double angle, const Point& center, int flip) {
+void Renderer::Copy(Texture& texture, const Optional<Rect>& srcrect, const Optional<Rect>& dstrect, double angle, const Optional<Point>& center, int flip) {
-	if (SDL_RenderCopyEx(renderer_, texture.Get(), srcrect.Get(), dstrect.Get(), angle, center.Get(), static_cast<SDL_RendererFlip>(flip)) != 0)
+	if (SDL_RenderCopyEx(renderer_, texture.Get(), srcrect ? &*srcrect : nullptr, dstrect ? &*dstrect : nullptr, angle, center ? &*center : nullptr, static_cast<SDL_RendererFlip>(flip)) != 0)
 		throw Exception("SDL_RenderCopyEx failed");
 }
 
@@ -110,17 +108,14 @@ void Renderer::DrawPoint(int x, int y) {
 }
 
 void Renderer::DrawPoint(const Point& p) {
-	if (p.IsNull())
+	DrawPoint(p.x, p.y);
-		return;
-	DrawPoint(p.GetX(), p.GetY());
 }
 
 void Renderer::DrawPoints(const Point* points, int count) {
 	std::vector<SDL_Point> sdl_points;
 	sdl_points.reserve(count);
 	for (const Point* p = points; p != points + count; ++p)
-		if (!p->IsNull())
+		sdl_points.emplace_back(*p);
-			sdl_points.emplace_back(*p->Get());
 
 	if (SDL_RenderDrawPoints(renderer_, sdl_points.data(), sdl_points.size()) != 0)
 		throw Exception("SDL_RenderDrawPoints failed");
@@ -132,17 +127,14 @@ void Renderer::DrawLine(int x1, int y1, int x2, int y2) {
 }
 
 void Renderer::DrawLine(const Point& p1, const Point& p2) {
-	if (p1.IsNull() || p2.IsNull())
+	DrawLine(p1.x, p1.y, p2.x, p2.y);
-		return;
-	DrawLine(p1.GetX(), p1.GetY(), p2.GetX(), p2.GetY());
 }
 
 void Renderer::DrawLines(const Point* points, int count) {
 	std::vector<SDL_Point> sdl_points;
 	sdl_points.reserve(count);
 	for (const Point* p = points; p != points + count; ++p)
-		if (!p->IsNull())
+		sdl_points.emplace_back(*p);
-			sdl_points.emplace_back(*p->Get());
 
 	if (SDL_RenderDrawLines(renderer_, sdl_points.data(), sdl_points.size()) != 0)
 		throw Exception("SDL_RenderDrawLines failed");
@@ -155,15 +147,11 @@ void Renderer::DrawRect(int x1, int y1, int x2, int y2) {
 }
 
 void Renderer::DrawRect(const Point& p1, const Point& p2) {
-	if (p1.IsNull() || p2.IsNull())
+	DrawRect(p1.x, p1.y, p2.x, p2.y);
-		return;
-	DrawRect(p1.GetX(), p1.GetY(), p2.GetX(), p2.GetY());
 }
 
 void Renderer::DrawRect(const Rect& r) {
-	if (r.IsNull())
+	if (SDL_RenderDrawRect(renderer_, &r) != 0)
-		return;
-	if (SDL_RenderDrawRect(renderer_, r.Get()) != 0)
 		throw Exception("SDL_RenderDrawRect failed");
 }
 
@@ -171,8 +159,7 @@ void Renderer::DrawRects(const Rect* rects, int count) {
 	std::vector<SDL_Rect> sdl_rects;
 	sdl_rects.reserve(count);
 	for (const Rect* r = rects; r != rects + count; ++r)
-		if (!r->IsNull())
+		sdl_rects.emplace_back(*r);
-			sdl_rects.emplace_back(*r->Get());
 
 	if (SDL_RenderDrawRects(renderer_, sdl_rects.data(), sdl_rects.size()) != 0)
 		throw Exception("SDL_RenderDrawRects failed");
@@ -185,15 +172,11 @@ void Renderer::FillRect(int x1, int y1, int x2, int y2) {
 }
 
 void Renderer::FillRect(const Point& p1, const Point& p2) {
-	if (p1.IsNull() || p2.IsNull())
+	FillRect(p1.x, p1.y, p2.x, p2.y);
-		return;
-	FillRect(p1.GetX(), p1.GetY(), p2.GetX(), p2.GetY());
 }
 
 void Renderer::FillRect(const Rect& r) {
-	if (r.IsNull())
+	if (SDL_RenderFillRect(renderer_, &r) != 0)
-		return;
-	if (SDL_RenderFillRect(renderer_, r.Get()) != 0)
 		throw Exception("SDL_RenderFillRect failed");
 }
 
@@ -201,20 +184,19 @@ void Renderer::FillRects(const Rect* rects, int count) {
 	std::vector<SDL_Rect> sdl_rects;
 	sdl_rects.reserve(count);
 	for (const Rect* r = rects; r != rects + count; ++r)
-		if (!r->IsNull())
+		sdl_rects.emplace_back(*r);
-			sdl_rects.emplace_back(*r->Get());
 
 	if (SDL_RenderFillRects(renderer_, sdl_rects.data(), sdl_rects.size()) != 0)
 		throw Exception("SDL_RenderFillRects failed");
 }
 
-void Renderer::ReadPixels(const Rect& rect, Uint32 format, void* pixels, int pitch) {
+void Renderer::ReadPixels(const Optional<Rect>& rect, Uint32 format, void* pixels, int pitch) {
-	if (SDL_RenderReadPixels(renderer_, rect.Get(), format, pixels, pitch) != 0)
+	if (SDL_RenderReadPixels(renderer_, rect ? &*rect : nullptr, format, pixels, pitch) != 0)
 		throw Exception("SDL_RenderReadPixels failed");
 }
 
-void Renderer::SetClipRect(const Rect& rect) {
+void Renderer::SetClipRect(const Optional<Rect>& rect) {
-	if (SDL_RenderSetClipRect(renderer_, rect.Get()) != 0)
+	if (SDL_RenderSetClipRect(renderer_, rect ? &*rect : nullptr) != 0)
 		throw Exception("SDL_RenderSetClipRect failed");
 }
 
@@ -228,8 +210,8 @@ void Renderer::SetScale(float scaleX, float scaleY) {
 		throw Exception("SDL_RenderSetScale failed");
 }
 
-void Renderer::SetViewport(const Rect& rect) {
+void Renderer::SetViewport(const Optional<Rect>& rect) {
-	if (SDL_RenderSetViewport(renderer_, rect.Get()) != 0)
+	if (SDL_RenderSetViewport(renderer_, rect ? &*rect : nullptr) != 0)
 		throw Exception("SDL_RenderSetViewport failed");
 }
 

SDL2pp/Renderer.hh

@@ -25,6 +25,7 @@
 #include <SDL2/SDL_stdinc.h>
 #include <SDL2/SDL_blendmode.h>
 
+#include <SDL2pp/Optional.hh>
 #include <SDL2pp/Point.hh>
 #include <SDL2pp/Rect.hh>
 
@@ -58,8 +59,8 @@ public:
 
 	void GetInfo(SDL_RendererInfo* info);
 
-	void Copy(Texture& texture, const Rect& srcrect = Rect::Null(), const Rect& dstrect = Rect::Null());
+	void Copy(Texture& texture, const Optional<Rect>& srcrect = NullOpt, const Optional<Rect>& dstrect = NullOpt);
-	void Copy(Texture& texture, const Rect& srcrect, const Rect& dstrect, double angle, const Point& center = Point::Null(), int flip = 0);
+	void Copy(Texture& texture, const Optional<Rect>& srcrect, const Optional<Rect>& dstrect, double angle, const Optional<Point>& center = NullOpt, int flip = 0);
 
 	void SetDrawColor(Uint8 r, Uint8 g, Uint8 b, Uint8 a = 255);
 	void SetTarget();
@@ -85,12 +86,12 @@ public:
 	void FillRect(const Rect& r);
 	void FillRects(const Rect* rects, int count);
 
-	void ReadPixels(const Rect& rect, Uint32 format, void* pixels, int pitch);
+	void ReadPixels(const Optional<Rect>& rect, Uint32 format, void* pixels, int pitch);
 
-	void SetClipRect(const Rect& rect);
+	void SetClipRect(const Optional<Rect>& rect = NullOpt);
 	void SetLogicalSize(int w, int h);
 	void SetScale(float scaleX, float scaleY);
-	void SetViewport(const Rect& rect);
+	void SetViewport(const Optional<Rect>& rect = NullOpt);
 
 	bool TargetSupported();
 };

SDL2pp/SDL2pp.hh

@@ -37,5 +37,6 @@
 #include <SDL2pp/ContainerRWops.hh>
 #include <SDL2pp/StreamRWops.hh>
 #include <SDL2pp/Wav.hh>
+#include <SDL2pp/Optional.hh>
 
 #endif

SDL2pp/Texture.cc

@@ -78,8 +78,8 @@ SDL_Texture* Texture::Get() const {
 	return texture_;
 }
 
-void Texture::Update(const Rect& rect, const void* pixels, int pitch) {
+void Texture::Update(const Optional<Rect>& rect, const void* pixels, int pitch) {
-	if (SDL_UpdateTexture(texture_, rect.Get(), pixels, pitch) != 0)
+	if (SDL_UpdateTexture(texture_, rect ? &*rect : nullptr, pixels, pitch) != 0)
 		throw Exception("SDL_UpdateTexture failed");
 }
 
@@ -98,7 +98,7 @@ void Texture::SetColorMod(Uint8 r, Uint8 g, Uint8 b) {
 		throw Exception("SDL_SetTextureColorMod failed");
 }
 
-Texture::LockHandle Texture::Lock(const Rect& rect = Rect::Null()) {
+Texture::LockHandle Texture::Lock(const Optional<Rect>& rect) {
 	return LockHandle(this, rect);
 }
 

SDL2pp/Texture.hh

@@ -27,6 +27,7 @@
 #include <SDL2/SDL_stdinc.h>
 #include <SDL2/SDL_blendmode.h>
 
+#include <SDL2pp/Optional.hh>
 #include <SDL2pp/Config.hh>
 
 struct SDL_Texture;
@@ -50,7 +51,7 @@ public:
 		int pitch_;
 
 	private:
-		LockHandle(Texture* texture, const Rect& rect);
+		LockHandle(Texture* texture, const Optional<Rect>& rect);
 
 	public:
 		LockHandle();
@@ -81,13 +82,13 @@ public:
 
 	SDL_Texture* Get() const;
 
-	void Update(const Rect& rect, const void* pixels, int pitch);
+	void Update(const Optional<Rect>& rect, const void* pixels, int pitch);
 
 	void SetBlendMode(SDL_BlendMode blendMode);
 	void SetAlphaMod(Uint8 alpha = 255);
 	void SetColorMod(Uint8 r = 255, Uint8 g = 255, Uint8 b = 255);
 
-	LockHandle Lock(const Rect& rect);
+	LockHandle Lock(const Optional<Rect>& rect);
 
 	Uint32 GetFormat() const;
 	int GetAccess() const;

SDL2pp/TextureLock.cc

@@ -31,8 +31,8 @@ namespace SDL2pp {
 Texture::LockHandle::LockHandle() : texture_(nullptr), pixels_(nullptr), pitch_(0) {
 }
 
-Texture::LockHandle::LockHandle(Texture* texture, const Rect& rect) : texture_(texture) {
+Texture::LockHandle::LockHandle(Texture* texture, const Optional<Rect>& rect) : texture_(texture) {
-	if (SDL_LockTexture(texture_->Get(), rect.Get(), &pixels_, &pitch_) != 0)
+	if (SDL_LockTexture(texture_->Get(), rect ? &*rect : nullptr, &pixels_, &pitch_) != 0)
 		throw Exception("SDL_LockTexture failed");
 }
 

cmake/CheckCompile.cmake

@@ -0,0 +1,11 @@
+MACRO(CHECK_COMPILE RESULT_VAR SOURCE_FILE DESCRIPTION)
+	SET(SAVED_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+	SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${WERROR_FLAG}")
+	TRY_COMPILE(${RESULT_VAR} ${CMAKE_BINARY_DIR} ${SOURCE_FILE})
+	IF(${RESULT_VAR})
+		MESSAGE(STATUS "${DESCRIPTION}: yes")
+	ELSE(${RESULT_VAR})
+		MESSAGE(STATUS "${DESCRIPTION}: no")
+	ENDIF(${RESULT_VAR})
+	SET(CMAKE_CXX_FLAGS "${SAVED_CXX_FLAGS}")
+ENDMACRO(CHECK_COMPILE)

cmake/attribute_deprecated_test.cc

@@ -0,0 +1,7 @@
+[[deprecated]]
+void f() {
+}
+
+int main() {
+	return 0;
+}

cmake/std_experimental_optional_test.cc

@@ -0,0 +1,8 @@
+#include <experimental/optional>
+#include <string>
+
+int main() {
+	std::experimental::optional<std::string> o;
+
+	return !o;
+}

examples/audio_sine.cc

@@ -41,7 +41,7 @@ int Run() {
 	AudioSpec spec(samplerate, AUDIO_S16SYS, 1, 4096);
 
 	// Open audio device
-	AudioDevice dev("", 0, spec, [&nsample, frequency, samplerate](Uint8* stream, int len) {
+	AudioDevice dev(NullOpt, 0, spec, [&nsample, frequency, samplerate](Uint8* stream, int len) {
 				// fill provided buffer with sine wave
 				for (Uint8* ptr = stream; ptr < stream + len; ptr += 2)
 					*(Uint16*)ptr = (Uint16)(32766.0f * sin(nsample++ / (float)samplerate * frequency));

examples/audio_wav.cc

@@ -39,7 +39,7 @@ int Run() {
 	Uint8* wav_pos = wav.GetBuffer();
 
 	// Open audio device
-	AudioDevice dev("", 0, wav.GetSpec(), [&wav, &wav_pos](Uint8* stream, int len) {
+	AudioDevice dev(NullOpt, 0, wav.GetSpec(), [&wav, &wav_pos](Uint8* stream, int len) {
 				// Fill provided buffer with wave contents
 				Uint8* stream_pos = stream;
 				Uint8* stream_end = stream + len;

examples/image.cc

@@ -55,9 +55,9 @@ int Run() {
 
 		// Simple copy
 		float angle = SDL_GetTicks() / 5000.0 * 2.0 * M_PI;
-		render.Copy(sprite, Rect::Null(), Rect(320 - 64, 240 - 64, 128, 128), angle / M_PI * 180.0);
+		render.Copy(sprite, NullOpt, Rect(320 - 64, 240 - 64, 128, 128), angle / M_PI * 180.0);
-		render.Copy(sprite, Rect::Null(), Rect(320 - 32 + sin(angle) * 40, 240 - 32 + cos(angle) * 40, 64, 64));
+		render.Copy(sprite, NullOpt, Rect(320 - 32 + sin(angle) * 40, 240 - 32 + cos(angle) * 40, 64, 64));
-		render.Copy(sprite, Rect::Null(), Rect(320 - 32 - sin(angle) * 40, 240 - 32 - cos(angle) * 40, 64, 64));
+		render.Copy(sprite, NullOpt, Rect(320 - 32 - sin(angle) * 40, 240 - 32 - cos(angle) * 40, 64, 64));
 
 		render.Present();
 

examples/rendertarget.cc

@@ -64,7 +64,7 @@ int Run() {
 	// Sprite data
 	Texture sprite(render, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STATIC, MY_SPRITE_SIZE, MY_SPRITE_SIZE);
 
-	sprite.Update(Rect::Null(), pixels, MY_SPRITE_SIZE * MY_SPRITE_SIZE);
+	sprite.Update(NullOpt, pixels, MY_SPRITE_SIZE * MY_SPRITE_SIZE);
 	sprite.SetBlendMode(SDL_BLENDMODE_BLEND);
 
 	// Two render target textures
@@ -93,10 +93,10 @@ int Run() {
 		for (int i = 0; i < 4; i++) {
 			render.SetTarget(target2);
 			render.Clear();
-			render.Copy(target1, Rect::Null(), Rect(0, 0, MY_RENDERTARGET_SIZE / 2, MY_RENDERTARGET_SIZE / 2), SDL_GetTicks() / 10000.0 * 360.0);
+			render.Copy(target1, NullOpt, Rect(0, 0, MY_RENDERTARGET_SIZE / 2, MY_RENDERTARGET_SIZE / 2), SDL_GetTicks() / 10000.0 * 360.0);
-			render.Copy(target1, Rect::Null(), Rect(MY_RENDERTARGET_SIZE / 2, 0, MY_RENDERTARGET_SIZE / 2, MY_RENDERTARGET_SIZE / 2), SDL_GetTicks() / 10000.0 * 360.0);
+			render.Copy(target1, NullOpt, Rect(MY_RENDERTARGET_SIZE / 2, 0, MY_RENDERTARGET_SIZE / 2, MY_RENDERTARGET_SIZE / 2), SDL_GetTicks() / 10000.0 * 360.0);
-			render.Copy(target1, Rect::Null(), Rect(0, MY_RENDERTARGET_SIZE / 2, MY_RENDERTARGET_SIZE / 2, MY_RENDERTARGET_SIZE / 2), SDL_GetTicks() / 10000.0 * 360.0);
+			render.Copy(target1, NullOpt, Rect(0, MY_RENDERTARGET_SIZE / 2, MY_RENDERTARGET_SIZE / 2, MY_RENDERTARGET_SIZE / 2), SDL_GetTicks() / 10000.0 * 360.0);
-			render.Copy(target1, Rect::Null(), Rect(MY_RENDERTARGET_SIZE / 2, MY_RENDERTARGET_SIZE / 2, MY_RENDERTARGET_SIZE / 2, MY_RENDERTARGET_SIZE / 2), SDL_GetTicks() / 10000.0 * 360.0);
+			render.Copy(target1, NullOpt, Rect(MY_RENDERTARGET_SIZE / 2, MY_RENDERTARGET_SIZE / 2, MY_RENDERTARGET_SIZE / 2, MY_RENDERTARGET_SIZE / 2), SDL_GetTicks() / 10000.0 * 360.0);
 
 			// Swap textures to copy recursively
 			std::swap(target1, target2);
@@ -106,7 +106,7 @@ int Run() {
 		render.SetTarget();
 		render.Clear();
 
-		render.Copy(target1, Rect::Null(), Rect((MY_SCREEN_WIDTH - MY_SCREEN_HEIGHT) / 2, 0, MY_SCREEN_HEIGHT, MY_SCREEN_HEIGHT), SDL_GetTicks() / 10000.0 * 360.0);
+		render.Copy(target1, NullOpt, Rect((MY_SCREEN_WIDTH - MY_SCREEN_HEIGHT) / 2, 0, MY_SCREEN_HEIGHT, MY_SCREEN_HEIGHT), SDL_GetTicks() / 10000.0 * 360.0);
 
 		render.Present();
 

examples/sprites.cc

@@ -46,7 +46,7 @@ int Run() {
 
 	// Load sprite texture
 	Texture sprite(render, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STATIC, 4, 4);
-	sprite.Update(Rect::Null(), pixels, 4 * 4);
+	sprite.Update(NullOpt, pixels, 4 * 4);
 	sprite.SetBlendMode(SDL_BLENDMODE_BLEND);
 
 	render.SetDrawBlendMode(SDL_BLENDMODE_BLEND);
@@ -63,23 +63,23 @@ int Run() {
 		render.Clear();
 
 		// Simple copy
-		render.Copy(sprite, Rect::Null(), Rect(80, 0, 240, 240));
+		render.Copy(sprite, NullOpt, Rect(80, 0, 240, 240));
 
 		// Copy with modulation
-		render.Copy(sprite, Rect::Null(), Rect(400, 0, 120, 120));
+		render.Copy(sprite, NullOpt, Rect(400, 0, 120, 120));
 		sprite.SetAlphaMod(92);
-		render.Copy(sprite, Rect::Null(), Rect(400 + 120, 0, 120, 120));
+		render.Copy(sprite, NullOpt, Rect(400 + 120, 0, 120, 120));
 		sprite.SetColorMod(255, 0, 0);
-		render.Copy(sprite, Rect::Null(), Rect(400, 0 + 120, 120, 120));
+		render.Copy(sprite, NullOpt, Rect(400, 0 + 120, 120, 120));
 		sprite.SetAlphaMod();
-		render.Copy(sprite, Rect::Null(), Rect(400 + 120, 0 + 120, 120, 120));
+		render.Copy(sprite, NullOpt, Rect(400 + 120, 0 + 120, 120, 120));
 		sprite.SetColorMod();
 
 		// Copy with rotation
-		render.Copy(sprite, Rect::Null(), Rect(80, 240, 240, 240), -1.0 * SDL_GetTicks() / 5000.0 * 360.0, Point::Null(), SDL_FLIP_NONE);
+		render.Copy(sprite, NullOpt, Rect(80, 240, 240, 240), -1.0 * SDL_GetTicks() / 5000.0 * 360.0, NullOpt, SDL_FLIP_NONE);
 
 		// Rotation around another point
-		render.Copy(sprite, Rect::Null(), Rect(520, 360, 120, 120), -1.0 * SDL_GetTicks() / 5000.0 * 360.0, Point(0, 0), SDL_FLIP_HORIZONTAL | SDL_FLIP_VERTICAL);
+		render.Copy(sprite, NullOpt, Rect(520, 360, 120, 120), -1.0 * SDL_GetTicks() / 5000.0 * 360.0, Point(0, 0), SDL_FLIP_HORIZONTAL | SDL_FLIP_VERTICAL);
 
 		render.Present();
 

tests/test_pointrect.cc

@@ -10,32 +10,27 @@ BEGIN_TEST()
 		// Point basic ops
 		Point p(1,2);
 
-		EXPECT_TRUE(!p.IsNull());
 		EXPECT_TRUE(p.GetX() == 1 && p.GetY() == 2);
 		EXPECT_TRUE(p == Point(1,2));
 		EXPECT_TRUE(p != Point(1,1));
 		EXPECT_TRUE(p != Point(2,2));
-		EXPECT_TRUE(p != Point::Null());
+		EXPECT_TRUE(p.x == 1);
-		EXPECT_TRUE(p.Get() != nullptr);
+		EXPECT_TRUE(p.y == 2);
-		EXPECT_TRUE(p.Get()->x == 1 && p.Get()->y == 2);
 
 		p.SetX(4);
 		p.SetY(5);
 
 		EXPECT_TRUE(p.GetX() == 4 && p.GetY() == 5);
 		EXPECT_TRUE(p == Point(4,5));
+		EXPECT_TRUE(p.x == 4);
+		EXPECT_TRUE(p.y == 5);
 
 		p = Point(6,7);
 
 		EXPECT_TRUE(p.GetX() == 6 && p.GetY() == 7);
 		EXPECT_TRUE(p == Point(6,7));
-
+		EXPECT_TRUE(p.x == 6);
-		p = Point::Null();
+		EXPECT_TRUE(p.y == 7);
-
-		EXPECT_TRUE(p != Point(1,2));
-		EXPECT_TRUE(p == Point::Null());
-		EXPECT_TRUE(p.IsNull());
-		EXPECT_TRUE(p.Get() == nullptr);
 	}
 
 	{
@@ -71,35 +66,19 @@ BEGIN_TEST()
 
 		EXPECT_TRUE(sum.GetX() == 111 && sum.GetY() == 222);
 		EXPECT_TRUE(diff.GetX() == -111 && diff.GetY() == -222);
-
-		sum += Point::Null();
-		diff -= Point::Null();
-
-		EXPECT_TRUE(sum.IsNull());
-		EXPECT_TRUE(diff.IsNull());
-
-		EXPECT_TRUE((Point(1,1) + Point::Null()).IsNull());
-		EXPECT_TRUE((Point(1,1) - Point::Null()).IsNull());
-		EXPECT_TRUE((Point::Null() + Point(1,1)).IsNull());
-		EXPECT_TRUE((Point::Null() - Point(1,1)).IsNull());
-		EXPECT_TRUE((Point::Null() - Point::Null()).IsNull());
-		EXPECT_TRUE((Point::Null() - Point::Null()).IsNull());
 	}
 
 	{
 		// Rect basic ops
 		Rect r(1,2,3,4);
 
-		EXPECT_TRUE(!r.IsNull());
 		EXPECT_TRUE(r.GetX() == 1 && r.GetY() == 2 && r.GetW() == 3 && r.GetH() == 4);
 		EXPECT_TRUE(r == Rect(1,2,3,4));
 		EXPECT_TRUE(r != Rect(2,2,3,4));
 		EXPECT_TRUE(r != Rect(1,3,3,4));
 		EXPECT_TRUE(r != Rect(1,2,4,4));
 		EXPECT_TRUE(r != Rect(1,2,3,5));
-		EXPECT_TRUE(r != Rect::Null());
+		EXPECT_TRUE(r.x == 1 && r.y == 2 && r.w == 3 && r.h == 4);
-		EXPECT_TRUE(r.Get() != nullptr);
-		EXPECT_TRUE(r.Get()->x == 1 && r.Get()->y == 2 && r.Get()->w == 3 && r.Get()->h == 4);
 
 		r.SetX(5);
 		r.SetY(6);
@@ -108,18 +87,13 @@ BEGIN_TEST()
 
 		EXPECT_TRUE(r.GetX() == 5 && r.GetY() == 6 && r.GetW() == 7 && r.GetH() == 8);
 		EXPECT_TRUE(r == Rect(5,6,7,8));
+		EXPECT_TRUE(r.x == 5 && r.y == 6 && r.w == 7 && r.h == 8);
 
 		r = Rect(9,10,11,12);
 
 		EXPECT_TRUE(r.GetX() == 9 && r.GetY() == 10 && r.GetW() == 11 && r.GetH() == 12);
 		EXPECT_TRUE(r == Rect(9,10,11,12));
-
+		EXPECT_TRUE(r.x == 9 && r.y == 10 && r.w == 11 && r.h == 12);
-		r = Rect::Null();
-
-		EXPECT_TRUE(r != Rect(1,2,3,4));
-		EXPECT_TRUE(r == Rect::Null());
-		EXPECT_TRUE(r.IsNull());
-		EXPECT_TRUE(r.Get() == nullptr);
 	}
 
 	{