import mir.math.common: fabs;
// mir.ndslice package is required for 'SimplexVariable', it can be found in 'mir-algorithm'
static if (is(typeof({ import mir.ndslice.slice; })))
{
    import mir.random.engine;
    auto rv = simplexVar;
    double[3] x;
    rv(rne, x);
    assert(x[0] >= 0 && x[1] >= 0 && x[2] >= 0);
    assert(fabs(x[0] + x[1] + x[2] - 1) < 1e-10);
}

import mir.random.engine;
import mir.math.common: fabs;

// mir.ndslice package is required for 'SimplexVariable', it can be found in 'mir-algorithm'
static if (is(typeof({ import mir.ndslice.slice; })))
{
    import mir.ndslice.slice;

    Random* gen = threadLocalPtr!Random;
    SimplexVariable!double rv;
    double[3] x;
    rv(gen, x);
    assert(x[0] >= 0 && x[1] >= 0 && x[2] >= 0);
    assert(fabs(x[0] + x[1] + x[2] - 1) < 1e-10);
}