common: Make use of [[nodiscard]] where applicable
Now that clang-format makes [[nodiscard]] attributes format sensibly, we can apply them to several functions within the common library to allow the compiler to complain about any misuses of the functions.
This commit is contained in:
Lioncash
parent
2b601e8636
commit
df72480395
34 changed files with 343 additions and 358 deletions
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@ -52,15 +52,15 @@ public:
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constexpr Vec2(const T& x_, const T& y_) : x(x_), y(y_) {}
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template <typename T2>
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constexpr Vec2<T2> Cast() const {
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[[nodiscard]] constexpr Vec2<T2> Cast() const {
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return Vec2<T2>(static_cast<T2>(x), static_cast<T2>(y));
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}
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static constexpr Vec2 AssignToAll(const T& f) {
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[[nodiscard]] static constexpr Vec2 AssignToAll(const T& f) {
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return Vec2{f, f};
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}
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constexpr Vec2<decltype(T{} + T{})> operator+(const Vec2& other) const {
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[[nodiscard]] constexpr Vec2<decltype(T{} + T{})> operator+(const Vec2& other) const {
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return {x + other.x, y + other.y};
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}
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constexpr Vec2& operator+=(const Vec2& other) {
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@ -68,7 +68,7 @@ public:
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y += other.y;
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return *this;
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}
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constexpr Vec2<decltype(T{} - T{})> operator-(const Vec2& other) const {
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[[nodiscard]] constexpr Vec2<decltype(T{} - T{})> operator-(const Vec2& other) const {
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return {x - other.x, y - other.y};
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}
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constexpr Vec2& operator-=(const Vec2& other) {
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@ -78,15 +78,15 @@ public:
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}
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template <typename U = T>
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constexpr Vec2<std::enable_if_t<std::is_signed_v<U>, U>> operator-() const {
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[[nodiscard]] constexpr Vec2<std::enable_if_t<std::is_signed_v<U>, U>> operator-() const {
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return {-x, -y};
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}
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constexpr Vec2<decltype(T{} * T{})> operator*(const Vec2& other) const {
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[[nodiscard]] constexpr Vec2<decltype(T{} * T{})> operator*(const Vec2& other) const {
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return {x * other.x, y * other.y};
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}
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template <typename V>
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constexpr Vec2<decltype(T{} * V{})> operator*(const V& f) const {
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[[nodiscard]] constexpr Vec2<decltype(T{} * V{})> operator*(const V& f) const {
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return {x * f, y * f};
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}
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@ -97,7 +97,7 @@ public:
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}
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template <typename V>
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constexpr Vec2<decltype(T{} / V{})> operator/(const V& f) const {
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[[nodiscard]] constexpr Vec2<decltype(T{} / V{})> operator/(const V& f) const {
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return {x / f, y / f};
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}
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@ -107,18 +107,18 @@ public:
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return *this;
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}
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constexpr T Length2() const {
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[[nodiscard]] constexpr T Length2() const {
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return x * x + y * y;
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}
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// Only implemented for T=float
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float Length() const;
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float Normalize(); // returns the previous length, which is often useful
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[[nodiscard]] float Length() const;
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[[nodiscard]] float Normalize(); // returns the previous length, which is often useful
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constexpr T& operator[](std::size_t i) {
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[[nodiscard]] constexpr T& operator[](std::size_t i) {
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return *((&x) + i);
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}
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constexpr const T& operator[](std::size_t i) const {
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[[nodiscard]] constexpr const T& operator[](std::size_t i) const {
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return *((&x) + i);
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}
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@ -128,46 +128,46 @@ public:
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}
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// Common aliases: UV (texel coordinates), ST (texture coordinates)
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constexpr T& u() {
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[[nodiscard]] constexpr T& u() {
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return x;
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}
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constexpr T& v() {
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[[nodiscard]] constexpr T& v() {
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return y;
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}
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constexpr T& s() {
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[[nodiscard]] constexpr T& s() {
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return x;
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}
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constexpr T& t() {
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[[nodiscard]] constexpr T& t() {
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return y;
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}
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constexpr const T& u() const {
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[[nodiscard]] constexpr const T& u() const {
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return x;
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}
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constexpr const T& v() const {
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[[nodiscard]] constexpr const T& v() const {
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return y;
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}
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constexpr const T& s() const {
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[[nodiscard]] constexpr const T& s() const {
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return x;
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}
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constexpr const T& t() const {
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[[nodiscard]] constexpr const T& t() const {
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return y;
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}
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// swizzlers - create a subvector of specific components
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constexpr Vec2 yx() const {
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[[nodiscard]] constexpr Vec2 yx() const {
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return Vec2(y, x);
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}
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constexpr Vec2 vu() const {
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[[nodiscard]] constexpr Vec2 vu() const {
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return Vec2(y, x);
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}
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constexpr Vec2 ts() const {
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[[nodiscard]] constexpr Vec2 ts() const {
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return Vec2(y, x);
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}
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};
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template <typename T, typename V>
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constexpr Vec2<T> operator*(const V& f, const Vec2<T>& vec) {
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[[nodiscard]] constexpr Vec2<T> operator*(const V& f, const Vec2<T>& vec) {
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return Vec2<T>(f * vec.x, f * vec.y);
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}
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@ -196,15 +196,15 @@ public:
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constexpr Vec3(const T& x_, const T& y_, const T& z_) : x(x_), y(y_), z(z_) {}
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template <typename T2>
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constexpr Vec3<T2> Cast() const {
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[[nodiscard]] constexpr Vec3<T2> Cast() const {
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return Vec3<T2>(static_cast<T2>(x), static_cast<T2>(y), static_cast<T2>(z));
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}
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static constexpr Vec3 AssignToAll(const T& f) {
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[[nodiscard]] static constexpr Vec3 AssignToAll(const T& f) {
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return Vec3(f, f, f);
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}
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constexpr Vec3<decltype(T{} + T{})> operator+(const Vec3& other) const {
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[[nodiscard]] constexpr Vec3<decltype(T{} + T{})> operator+(const Vec3& other) const {
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return {x + other.x, y + other.y, z + other.z};
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}
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@ -215,7 +215,7 @@ public:
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return *this;
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}
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constexpr Vec3<decltype(T{} - T{})> operator-(const Vec3& other) const {
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[[nodiscard]] constexpr Vec3<decltype(T{} - T{})> operator-(const Vec3& other) const {
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return {x - other.x, y - other.y, z - other.z};
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}
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@ -227,16 +227,16 @@ public:
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}
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template <typename U = T>
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constexpr Vec3<std::enable_if_t<std::is_signed_v<U>, U>> operator-() const {
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[[nodiscard]] constexpr Vec3<std::enable_if_t<std::is_signed_v<U>, U>> operator-() const {
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return {-x, -y, -z};
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}
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constexpr Vec3<decltype(T{} * T{})> operator*(const Vec3& other) const {
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[[nodiscard]] constexpr Vec3<decltype(T{} * T{})> operator*(const Vec3& other) const {
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return {x * other.x, y * other.y, z * other.z};
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}
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template <typename V>
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constexpr Vec3<decltype(T{} * V{})> operator*(const V& f) const {
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[[nodiscard]] constexpr Vec3<decltype(T{} * V{})> operator*(const V& f) const {
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return {x * f, y * f, z * f};
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}
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@ -246,7 +246,7 @@ public:
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return *this;
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}
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template <typename V>
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constexpr Vec3<decltype(T{} / V{})> operator/(const V& f) const {
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[[nodiscard]] constexpr Vec3<decltype(T{} / V{})> operator/(const V& f) const {
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return {x / f, y / f, z / f};
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}
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@ -256,20 +256,20 @@ public:
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return *this;
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}
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constexpr T Length2() const {
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[[nodiscard]] constexpr T Length2() const {
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return x * x + y * y + z * z;
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}
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// Only implemented for T=float
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float Length() const;
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Vec3 Normalized() const;
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float Normalize(); // returns the previous length, which is often useful
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[[nodiscard]] float Length() const;
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[[nodiscard]] Vec3 Normalized() const;
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[[nodiscard]] float Normalize(); // returns the previous length, which is often useful
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constexpr T& operator[](std::size_t i) {
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[[nodiscard]] constexpr T& operator[](std::size_t i) {
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return *((&x) + i);
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}
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constexpr const T& operator[](std::size_t i) const {
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[[nodiscard]] constexpr const T& operator[](std::size_t i) const {
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return *((&x) + i);
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}
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@ -280,63 +280,63 @@ public:
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}
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// Common aliases: UVW (texel coordinates), RGB (colors), STQ (texture coordinates)
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constexpr T& u() {
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[[nodiscard]] constexpr T& u() {
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return x;
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}
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constexpr T& v() {
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[[nodiscard]] constexpr T& v() {
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return y;
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}
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constexpr T& w() {
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[[nodiscard]] constexpr T& w() {
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return z;
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}
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constexpr T& r() {
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[[nodiscard]] constexpr T& r() {
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return x;
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}
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constexpr T& g() {
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[[nodiscard]] constexpr T& g() {
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return y;
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}
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constexpr T& b() {
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[[nodiscard]] constexpr T& b() {
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return z;
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}
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constexpr T& s() {
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[[nodiscard]] constexpr T& s() {
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return x;
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}
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constexpr T& t() {
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[[nodiscard]] constexpr T& t() {
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return y;
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}
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constexpr T& q() {
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[[nodiscard]] constexpr T& q() {
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return z;
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}
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constexpr const T& u() const {
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[[nodiscard]] constexpr const T& u() const {
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return x;
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}
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constexpr const T& v() const {
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[[nodiscard]] constexpr const T& v() const {
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return y;
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}
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constexpr const T& w() const {
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[[nodiscard]] constexpr const T& w() const {
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return z;
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}
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constexpr const T& r() const {
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[[nodiscard]] constexpr const T& r() const {
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return x;
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}
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constexpr const T& g() const {
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[[nodiscard]] constexpr const T& g() const {
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return y;
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}
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constexpr const T& b() const {
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[[nodiscard]] constexpr const T& b() const {
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return z;
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}
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constexpr const T& s() const {
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[[nodiscard]] constexpr const T& s() const {
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return x;
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}
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constexpr const T& t() const {
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[[nodiscard]] constexpr const T& t() const {
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return y;
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}
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constexpr const T& q() const {
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[[nodiscard]] constexpr const T& q() const {
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return z;
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}
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@ -345,7 +345,7 @@ public:
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// _DEFINE_SWIZZLER2 defines a single such function, DEFINE_SWIZZLER2 defines all of them for all
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// component names (x<->r) and permutations (xy<->yx)
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#define _DEFINE_SWIZZLER2(a, b, name) \
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constexpr Vec2<T> name() const { \
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[[nodiscard]] constexpr Vec2<T> name() const { \
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return Vec2<T>(a, b); \
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}
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#define DEFINE_SWIZZLER2(a, b, a2, b2, a3, b3, a4, b4) \
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@ -366,7 +366,7 @@ public:
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};
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template <typename T, typename V>
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constexpr Vec3<T> operator*(const V& f, const Vec3<T>& vec) {
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[[nodiscard]] constexpr Vec3<T> operator*(const V& f, const Vec3<T>& vec) {
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return Vec3<T>(f * vec.x, f * vec.y, f * vec.z);
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}
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@ -402,16 +402,16 @@ public:
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: x(x_), y(y_), z(z_), w(w_) {}
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template <typename T2>
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constexpr Vec4<T2> Cast() const {
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[[nodiscard]] constexpr Vec4<T2> Cast() const {
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return Vec4<T2>(static_cast<T2>(x), static_cast<T2>(y), static_cast<T2>(z),
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static_cast<T2>(w));
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}
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static constexpr Vec4 AssignToAll(const T& f) {
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[[nodiscard]] static constexpr Vec4 AssignToAll(const T& f) {
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return Vec4(f, f, f, f);
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}
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constexpr Vec4<decltype(T{} + T{})> operator+(const Vec4& other) const {
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[[nodiscard]] constexpr Vec4<decltype(T{} + T{})> operator+(const Vec4& other) const {
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return {x + other.x, y + other.y, z + other.z, w + other.w};
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}
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@ -423,7 +423,7 @@ public:
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return *this;
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}
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constexpr Vec4<decltype(T{} - T{})> operator-(const Vec4& other) const {
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[[nodiscard]] constexpr Vec4<decltype(T{} - T{})> operator-(const Vec4& other) const {
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return {x - other.x, y - other.y, z - other.z, w - other.w};
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}
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@ -436,16 +436,16 @@ public:
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}
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template <typename U = T>
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constexpr Vec4<std::enable_if_t<std::is_signed_v<U>, U>> operator-() const {
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[[nodiscard]] constexpr Vec4<std::enable_if_t<std::is_signed_v<U>, U>> operator-() const {
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return {-x, -y, -z, -w};
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}
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constexpr Vec4<decltype(T{} * T{})> operator*(const Vec4& other) const {
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[[nodiscard]] constexpr Vec4<decltype(T{} * T{})> operator*(const Vec4& other) const {
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return {x * other.x, y * other.y, z * other.z, w * other.w};
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}
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template <typename V>
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constexpr Vec4<decltype(T{} * V{})> operator*(const V& f) const {
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[[nodiscard]] constexpr Vec4<decltype(T{} * V{})> operator*(const V& f) const {
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return {x * f, y * f, z * f, w * f};
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}
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@ -456,7 +456,7 @@ public:
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}
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template <typename V>
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constexpr Vec4<decltype(T{} / V{})> operator/(const V& f) const {
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[[nodiscard]] constexpr Vec4<decltype(T{} / V{})> operator/(const V& f) const {
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return {x / f, y / f, z / f, w / f};
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}
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@ -466,15 +466,15 @@ public:
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return *this;
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}
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constexpr T Length2() const {
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[[nodiscard]] constexpr T Length2() const {
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return x * x + y * y + z * z + w * w;
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}
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constexpr T& operator[](std::size_t i) {
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[[nodiscard]] constexpr T& operator[](std::size_t i) {
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return *((&x) + i);
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}
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constexpr const T& operator[](std::size_t i) const {
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[[nodiscard]] constexpr const T& operator[](std::size_t i) const {
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return *((&x) + i);
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}
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@ -486,29 +486,29 @@ public:
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}
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// Common alias: RGBA (colors)
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constexpr T& r() {
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[[nodiscard]] constexpr T& r() {
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return x;
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}
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constexpr T& g() {
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[[nodiscard]] constexpr T& g() {
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return y;
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}
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constexpr T& b() {
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[[nodiscard]] constexpr T& b() {
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return z;
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}
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constexpr T& a() {
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[[nodiscard]] constexpr T& a() {
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return w;
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}
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constexpr const T& r() const {
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[[nodiscard]] constexpr const T& r() const {
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return x;
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}
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constexpr const T& g() const {
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[[nodiscard]] constexpr const T& g() const {
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return y;
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}
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constexpr const T& b() const {
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[[nodiscard]] constexpr const T& b() const {
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return z;
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}
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constexpr const T& a() const {
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[[nodiscard]] constexpr const T& a() const {
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return w;
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}
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@ -520,7 +520,7 @@ public:
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// DEFINE_SWIZZLER2_COMP2 defines two component functions for all component names (x<->r) and
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// permutations (xy<->yx)
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#define _DEFINE_SWIZZLER2(a, b, name) \
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constexpr Vec2<T> name() const { \
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[[nodiscard]] constexpr Vec2<T> name() const { \
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return Vec2<T>(a, b); \
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}
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#define DEFINE_SWIZZLER2_COMP1(a, a2) \
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@ -547,7 +547,7 @@ public:
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#undef _DEFINE_SWIZZLER2
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#define _DEFINE_SWIZZLER3(a, b, c, name) \
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constexpr Vec3<T> name() const { \
|
||||
[[nodiscard]] constexpr Vec3<T> name() const { \
|
||||
return Vec3<T>(a, b, c); \
|
||||
}
|
||||
#define DEFINE_SWIZZLER3_COMP1(a, a2) \
|
||||
|
|
@ -581,7 +581,7 @@ public:
|
|||
};
|
||||
|
||||
template <typename T, typename V>
|
||||
constexpr Vec4<decltype(V{} * T{})> operator*(const V& f, const Vec4<T>& vec) {
|
||||
[[nodiscard]] constexpr Vec4<decltype(V{} * T{})> operator*(const V& f, const Vec4<T>& vec) {
|
||||
return {f * vec.x, f * vec.y, f * vec.z, f * vec.w};
|
||||
}
|
||||
|
||||
|
|
@ -593,39 +593,41 @@ constexpr decltype(T{} * T{} + T{} * T{}) Dot(const Vec2<T>& a, const Vec2<T>& b
|
|||
}
|
||||
|
||||
template <typename T>
|
||||
constexpr decltype(T{} * T{} + T{} * T{}) Dot(const Vec3<T>& a, const Vec3<T>& b) {
|
||||
[[nodiscard]] constexpr decltype(T{} * T{} + T{} * T{}) Dot(const Vec3<T>& a, const Vec3<T>& b) {
|
||||
return a.x * b.x + a.y * b.y + a.z * b.z;
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
constexpr decltype(T{} * T{} + T{} * T{}) Dot(const Vec4<T>& a, const Vec4<T>& b) {
|
||||
[[nodiscard]] constexpr decltype(T{} * T{} + T{} * T{}) Dot(const Vec4<T>& a, const Vec4<T>& b) {
|
||||
return a.x * b.x + a.y * b.y + a.z * b.z + a.w * b.w;
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
constexpr Vec3<decltype(T{} * T{} - T{} * T{})> Cross(const Vec3<T>& a, const Vec3<T>& b) {
|
||||
[[nodiscard]] constexpr Vec3<decltype(T{} * T{} - T{} * T{})> Cross(const Vec3<T>& a,
|
||||
const Vec3<T>& b) {
|
||||
return {a.y * b.z - a.z * b.y, a.z * b.x - a.x * b.z, a.x * b.y - a.y * b.x};
|
||||
}
|
||||
|
||||
// linear interpolation via float: 0.0=begin, 1.0=end
|
||||
template <typename X>
|
||||
constexpr decltype(X{} * float{} + X{} * float{}) Lerp(const X& begin, const X& end,
|
||||
const float t) {
|
||||
[[nodiscard]] constexpr decltype(X{} * float{} + X{} * float{}) Lerp(const X& begin, const X& end,
|
||||
const float t) {
|
||||
return begin * (1.f - t) + end * t;
|
||||
}
|
||||
|
||||
// linear interpolation via int: 0=begin, base=end
|
||||
template <typename X, int base>
|
||||
constexpr decltype((X{} * int{} + X{} * int{}) / base) LerpInt(const X& begin, const X& end,
|
||||
const int t) {
|
||||
[[nodiscard]] constexpr decltype((X{} * int{} + X{} * int{}) / base) LerpInt(const X& begin,
|
||||
const X& end,
|
||||
const int t) {
|
||||
return (begin * (base - t) + end * t) / base;
|
||||
}
|
||||
|
||||
// bilinear interpolation. s is for interpolating x00-x01 and x10-x11, and t is for the second
|
||||
// interpolation.
|
||||
template <typename X>
|
||||
constexpr auto BilinearInterp(const X& x00, const X& x01, const X& x10, const X& x11, const float s,
|
||||
const float t) {
|
||||
[[nodiscard]] constexpr auto BilinearInterp(const X& x00, const X& x01, const X& x10, const X& x11,
|
||||
const float s, const float t) {
|
||||
auto y0 = Lerp(x00, x01, s);
|
||||
auto y1 = Lerp(x10, x11, s);
|
||||
return Lerp(y0, y1, t);
|
||||
|
|
@ -633,42 +635,42 @@ constexpr auto BilinearInterp(const X& x00, const X& x01, const X& x10, const X&
|
|||
|
||||
// Utility vector factories
|
||||
template <typename T>
|
||||
constexpr Vec2<T> MakeVec(const T& x, const T& y) {
|
||||
[[nodiscard]] constexpr Vec2<T> MakeVec(const T& x, const T& y) {
|
||||
return Vec2<T>{x, y};
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
constexpr Vec3<T> MakeVec(const T& x, const T& y, const T& z) {
|
||||
[[nodiscard]] constexpr Vec3<T> MakeVec(const T& x, const T& y, const T& z) {
|
||||
return Vec3<T>{x, y, z};
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
constexpr Vec4<T> MakeVec(const T& x, const T& y, const Vec2<T>& zw) {
|
||||
[[nodiscard]] constexpr Vec4<T> MakeVec(const T& x, const T& y, const Vec2<T>& zw) {
|
||||
return MakeVec(x, y, zw[0], zw[1]);
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
constexpr Vec3<T> MakeVec(const Vec2<T>& xy, const T& z) {
|
||||
[[nodiscard]] constexpr Vec3<T> MakeVec(const Vec2<T>& xy, const T& z) {
|
||||
return MakeVec(xy[0], xy[1], z);
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
constexpr Vec3<T> MakeVec(const T& x, const Vec2<T>& yz) {
|
||||
[[nodiscard]] constexpr Vec3<T> MakeVec(const T& x, const Vec2<T>& yz) {
|
||||
return MakeVec(x, yz[0], yz[1]);
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
constexpr Vec4<T> MakeVec(const T& x, const T& y, const T& z, const T& w) {
|
||||
[[nodiscard]] constexpr Vec4<T> MakeVec(const T& x, const T& y, const T& z, const T& w) {
|
||||
return Vec4<T>{x, y, z, w};
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
constexpr Vec4<T> MakeVec(const Vec2<T>& xy, const T& z, const T& w) {
|
||||
[[nodiscard]] constexpr Vec4<T> MakeVec(const Vec2<T>& xy, const T& z, const T& w) {
|
||||
return MakeVec(xy[0], xy[1], z, w);
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
constexpr Vec4<T> MakeVec(const T& x, const Vec2<T>& yz, const T& w) {
|
||||
[[nodiscard]] constexpr Vec4<T> MakeVec(const T& x, const Vec2<T>& yz, const T& w) {
|
||||
return MakeVec(x, yz[0], yz[1], w);
|
||||
}
|
||||
|
||||
|
|
@ -676,17 +678,17 @@ constexpr Vec4<T> MakeVec(const T& x, const Vec2<T>& yz, const T& w) {
|
|||
// Even if someone wanted to use an odd object like Vec2<Vec2<T>>, the compiler would error
|
||||
// out soon enough due to misuse of the returned structure.
|
||||
template <typename T>
|
||||
constexpr Vec4<T> MakeVec(const Vec2<T>& xy, const Vec2<T>& zw) {
|
||||
[[nodiscard]] constexpr Vec4<T> MakeVec(const Vec2<T>& xy, const Vec2<T>& zw) {
|
||||
return MakeVec(xy[0], xy[1], zw[0], zw[1]);
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
constexpr Vec4<T> MakeVec(const Vec3<T>& xyz, const T& w) {
|
||||
[[nodiscard]] constexpr Vec4<T> MakeVec(const Vec3<T>& xyz, const T& w) {
|
||||
return MakeVec(xyz[0], xyz[1], xyz[2], w);
|
||||
}
|
||||
|
||||
template <typename T>
|
||||
constexpr Vec4<T> MakeVec(const T& x, const Vec3<T>& yzw) {
|
||||
[[nodiscard]] constexpr Vec4<T> MakeVec(const T& x, const Vec3<T>& yzw) {
|
||||
return MakeVec(x, yzw[0], yzw[1], yzw[2]);
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue