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100 lines
2.2 KiB
C++
100 lines
2.2 KiB
C++
#include <glm/ext/vector_ulp.hpp>
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#include <glm/ext/vector_relational.hpp>
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#include <glm/ext/vector_float4.hpp>
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#include <glm/ext/vector_double4.hpp>
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#include <glm/ext/vector_int4.hpp>
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static int test_ulp_float_dist()
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{
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int Error = 0;
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glm::vec4 const A(1.0f);
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glm::vec4 const B = glm::nextFloat(A);
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Error += glm::any(glm::notEqual(A, B, 0)) ? 0 : 1;
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glm::vec4 const C = glm::prevFloat(B);
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Error += glm::all(glm::equal(A, C, 0)) ? 0 : 1;
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glm::ivec4 const D = glm::floatDistance(A, B);
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Error += D == glm::ivec4(1) ? 0 : 1;
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glm::ivec4 const E = glm::floatDistance(A, C);
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Error += E == glm::ivec4(0) ? 0 : 1;
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return Error;
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}
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static int test_ulp_float_step()
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{
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int Error = 0;
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glm::vec4 const A(1.0f);
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for(int i = 10; i < 1000; i *= 10)
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{
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glm::vec4 const B = glm::nextFloat(A, i);
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Error += glm::any(glm::notEqual(A, B, 0)) ? 0 : 1;
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glm::vec4 const C = glm::prevFloat(B, i);
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Error += glm::all(glm::equal(A, C, 0)) ? 0 : 1;
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glm::ivec4 const D = glm::floatDistance(A, B);
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Error += D == glm::ivec4(i) ? 0 : 1;
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glm::ivec4 const E = glm::floatDistance(A, C);
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Error += E == glm::ivec4(0) ? 0 : 1;
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}
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return Error;
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}
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static int test_ulp_double_dist()
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{
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int Error = 0;
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glm::dvec4 const A(1.0);
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glm::dvec4 const B = glm::nextFloat(A);
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Error += glm::any(glm::notEqual(A, B, 0)) ? 0 : 1;
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glm::dvec4 const C = glm::prevFloat(B);
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Error += glm::all(glm::equal(A, C, 0)) ? 0 : 1;
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glm::ivec4 const D(glm::floatDistance(A, B));
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Error += D == glm::ivec4(1) ? 0 : 1;
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glm::ivec4 const E = glm::floatDistance(A, C);
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Error += E == glm::ivec4(0) ? 0 : 1;
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return Error;
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}
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static int test_ulp_double_step()
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{
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int Error = 0;
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glm::dvec4 const A(1.0);
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for(int i = 10; i < 1000; i *= 10)
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{
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glm::dvec4 const B = glm::nextFloat(A, i);
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Error += glm::any(glm::notEqual(A, B, 0)) ? 0 : 1;
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glm::dvec4 const C = glm::prevFloat(B, i);
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Error += glm::all(glm::equal(A, C, 0)) ? 0 : 1;
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glm::ivec4 const D(glm::floatDistance(A, B));
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Error += D == glm::ivec4(i) ? 0 : 1;
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glm::ivec4 const E(glm::floatDistance(A, C));
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Error += E == glm::ivec4(0) ? 0 : 1;
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}
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return Error;
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}
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int main()
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{
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int Error = 0;
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Error += test_ulp_float_dist();
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Error += test_ulp_float_step();
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Error += test_ulp_double_dist();
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Error += test_ulp_double_step();
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return Error;
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}
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