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// test_norm -- quick-n-dirty test of norm template class
// $Id$
#include <cstdio>
#include <cassert>
#include <cmath>
using std::printf;
using std::sqrt;
#include "stdc.h"
#include "util.hh"
using jtutil::norm;
using jtutil::fuzzy;
int main()
{
norm<double> foo;
assert( foo.is_empty() );
assert(! foo.is_nonempty());
foo.data(3.0);
assert(! foo.is_empty() );
assert( foo.is_nonempty());
foo.data(-3.0);
foo.data(3.0);
foo.data(-3.0);
foo.data(-3.0);
assert( fuzzy<double>::EQ(foo.two_norm(), sqrt(45.0)) );
assert( fuzzy<double>::EQ(foo.rms_norm(), 3.0) );
assert( fuzzy<double>::EQ(foo.infinity_norm(), 3.0) );
foo.reset();
assert( foo.is_empty() );
assert(! foo.is_nonempty());
foo.data(-3.0);
assert(! foo.is_empty() );
assert( foo.is_nonempty());
foo.data(1.0);
foo.data(-4.0);
foo.data(1.0);
foo.data(-5.0);
assert( fuzzy<double>::EQ(foo.two_norm(), sqrt(52.0)) );
assert( fuzzy<double>::EQ(foo.rms_norm(), sqrt(10.4)) );
assert( fuzzy<double>::EQ(foo.infinity_norm(), 5.0) );
printf("everything ok!\n");
return 0;
}
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