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author Miodrag Milanovic <mmicko@gmail.com>2016-05-05 15:07:31 +0200
committer Miodrag Milanovic <mmicko@gmail.com>2016-05-05 15:07:31 +0200
commit07b2912508d51b99de950e67dd7cfc48800dc0c3 (patch)
tree8ba01e9707cd16763a89468dc7f0c96c15af24d6 /3rdparty/glm/test/gtc/gtc_ulp.cpp
parent18014a8da55d96e4e92ebbff65dae5863e313225 (diff)
Added GLM library (nw)
Diffstat (limited to '3rdparty/glm/test/gtc/gtc_ulp.cpp')
-rw-r--r--3rdparty/glm/test/gtc/gtc_ulp.cpp127
1 files changed, 127 insertions, 0 deletions
diff --git a/3rdparty/glm/test/gtc/gtc_ulp.cpp b/3rdparty/glm/test/gtc/gtc_ulp.cpp
new file mode 100644
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+++ b/3rdparty/glm/test/gtc/gtc_ulp.cpp
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+///////////////////////////////////////////////////////////////////////////////////
+/// OpenGL Mathematics (glm.g-truc.net)
+///
+/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net)
+/// Permission is hereby granted, free of charge, to any person obtaining a copy
+/// of this software and associated documentation files (the "Software"), to deal
+/// in the Software without restriction, including without limitation the rights
+/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+/// copies of the Software, and to permit persons to whom the Software is
+/// furnished to do so, subject to the following conditions:
+///
+/// The above copyright notice and this permission notice shall be included in
+/// all copies or substantial portions of the Software.
+///
+/// Restrictions:
+/// By making use of the Software for military purposes, you choose to make
+/// a Bunny unhappy.
+///
+/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+/// THE SOFTWARE.
+///
+/// @file test/gtc/gtc_ulp.cpp
+/// @date 2011-04-26 / 2014-11-25
+/// @author Christophe Riccio
+///////////////////////////////////////////////////////////////////////////////////
+
+#include <glm/gtc/ulp.hpp>
+#include <limits>
+
+int test_ulp_float_dist()
+{
+ int Error = 0;
+
+ float A = 1.0f;
+
+ float B = glm::next_float(A);
+ Error += A != B ? 0 : 1;
+ float C = glm::prev_float(B);
+ Error += A == C ? 0 : 1;
+
+ int D = glm::float_distance(A, B);
+ Error += D == 1 ? 0 : 1;
+ int E = glm::float_distance(A, C);
+ Error += E == 0 ? 0 : 1;
+
+ return Error;
+}
+
+int test_ulp_float_step()
+{
+ int Error = 0;
+
+ float A = 1.0f;
+
+ for(int i = 10; i < 1000; i *= 10)
+ {
+ float B = glm::next_float(A, i);
+ Error += A != B ? 0 : 1;
+ float C = glm::prev_float(B, i);
+ Error += A == C ? 0 : 1;
+
+ int D = glm::float_distance(A, B);
+ Error += D == i ? 0 : 1;
+ int E = glm::float_distance(A, C);
+ Error += E == 0 ? 0 : 1;
+ }
+
+ return Error;
+}
+
+int test_ulp_double_dist()
+{
+ int Error = 0;
+
+ double A = 1.0;
+
+ double B = glm::next_float(A);
+ Error += A != B ? 0 : 1;
+ double C = glm::prev_float(B);
+ Error += A == C ? 0 : 1;
+
+ int D = glm::float_distance(A, B);
+ Error += D == 1 ? 0 : 1;
+ int E = glm::float_distance(A, C);
+ Error += E == 0 ? 0 : 1;
+
+ return Error;
+}
+
+int test_ulp_double_step()
+{
+ int Error = 0;
+
+ double A = 1.0;
+
+ for(int i = 10; i < 1000; i *= 10)
+ {
+ double B = glm::next_float(A, i);
+ Error += A != B ? 0 : 1;
+ double C = glm::prev_float(B, i);
+ Error += A == C ? 0 : 1;
+
+ int D = glm::float_distance(A, B);
+ Error += D == i ? 0 : 1;
+ int E = glm::float_distance(A, C);
+ Error += E == 0 ? 0 : 1;
+ }
+
+ return Error;
+}
+
+int main()
+{
+ int Error = 0;
+ Error += test_ulp_float_dist();
+ Error += test_ulp_float_step();
+ Error += test_ulp_double_dist();
+ Error += test_ulp_double_step();
+ return Error;
+}
+
+