Mirror/aicodix___dsp
1
0
Fork 0
mirror of https://github.com/aicodix/dsp.git synced 2026-04-27 22:35:45 +00:00
Code Issues Projects Releases Packages Wiki Activity

Initial commit

Browse source
This commit is contained in:
Ahmet Inan 2018-03-02 13:42:20 +01:00
commit 826ee2b085
7 changed files with 98 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

1
tests/.gitignore vendored Normal file
View file

@ -0,0 +1 @@
kahan

13
tests/Makefile Normal file
View file

@ -0,0 +1,13 @@
CXXFLAGS = -I.. -std=c++11 -W -Wall -O3 -march=native -ffast-math
CXX = clang++ -stdlib=libc++
#CXX = g++
.PHONY: clean test
test: kahan
./kahan
clean:
rm -f kahan

19
tests/kahan.cc Normal file
View file

@ -0,0 +1,19 @@
/*
Test for the Kahan summation algorithm
Copyright 2018 Ahmet Inan <inan@aicodix.de>
*/
#include "kahan.hh"
int main()
{
const double pi = 3.14159265358979323846;
DSP::Kahan<double> kahan(3.0);
for (double i = 2.0; i < 181423.0; i += 4.0) {
kahan(4.0 / (i * (i + 1.0) * (i + 2.0)));
kahan(-4.0 / ((i + 2.0) * (i + 3.0) * (i + 4.0)));
}
return kahan() != pi;
}