75 lines
1.4 KiB
C++
75 lines
1.4 KiB
C++
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#pragma once
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#ifndef ZM_VEC3_HPP
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#define ZM_VEC3_HPP
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#include <cstddef>
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namespace zm {
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struct vec3 {
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#if defined(__clang__)
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wgnu-anonymous-struct"
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#pragma clang diagnostic ignored "-Wnested-anon-types"
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#elif defined(__GNUC__)
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wpedantic"
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#elif defined(_MSC_VER)
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#pragma warning(push)
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#pragma warning(disable : 4201) // nonstandard extension used :
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// nameless struct/union
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#pragma warning(disable : 4324) // structure was padded due to
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// alignment specifier
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#endif
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union {
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float elements[3];
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struct {
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union {
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float x, r, s;
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};
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union {
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float y, g, t;
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};
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union {
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float z, b, p;
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};
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};
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};
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#if defined(__clang__)
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#pragma clang diagnostic pop
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#elif defined(__GNUC__)
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#pragma GCC diagnostic pop
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#elif defined(_MSC_VER)
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#pragma warning(pop)
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#endif
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vec3() : x(0), y(0), z(0) {
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}
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vec3(float x_, float y_, float z_)
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: x(x_), y(y_), z(z_) {
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}
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constexpr float* data() {
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return elements;
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}
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constexpr const float* data() const {
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return this->elements;
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}
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constexpr float& operator[](std::size_t i) {
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return this->elements[i];
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}
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constexpr const float& operator[](
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std::size_t i) const {
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return this->elements[i];
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}
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};
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} // namespace zm
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#endif // ZM_VEC3_HPP
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