vectorwrapper/test/unit/test_ops.cpp
King_DuckZ 958de67849 Make scalar_type and vector_type public in Vec.
- Add a dot product implementation.
- Test code to demonstrate dot product.
- Test code to demonstrate wrapping structs with unordered properties.
2015-07-25 19:41:16 +02:00

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C++

#include "sample_vectors.hpp"
#include "vectorwrapper/vectorops.hpp"
#include <gtest/gtest.h>
struct UnorderedVector {
int64_t y;
int64_t z;
int64_t x;
};
namespace vwr {
template <>
struct VectorWrapperInfo<UnorderedVector> {
enum { dimensions = 3 };
typedef int64_t scalar_type;
enum {
offset_x = offsetof(UnorderedVector, x),
offset_y = offsetof(UnorderedVector, y),
offset_z = offsetof(UnorderedVector, z)
};
};
} //namespace vwr
typedef vwr::Vec<UnorderedVector> uvec3i;
TEST(vwr, ops) {
using namespace vwr;
ivec3 a(1);
ivec3 b(1);
EXPECT_EQ(3, dot(a, b));
EXPECT_EQ(3, dot(a, a));
a = ivec3{5, 2, 8};
b = ivec3{6, 9, 3};
EXPECT_EQ(6*5+2*9+8*3, dot(a, b));
uvec3i c(7, 2, 9);
EXPECT_EQ(7, c.x());
EXPECT_EQ(2, c.y());
EXPECT_EQ(9, c.z());
EXPECT_EQ(7*5+2*2+9*8, dot(a, c));
EXPECT_EQ(7*6+2*9+9*3, dot(b, c));
}