param_ctor_func.pass.cpp [plain text]
#include <random>
#include <cassert>
double fw(double x)
{
return 2*x;
}
int main()
{
{
typedef std::piecewise_linear_distribution<> D;
typedef D::param_type P;
P pa(0, 0, 1, fw);
std::vector<double> iv = pa.intervals();
assert(iv.size() == 2);
assert(iv[0] == 0);
assert(iv[1] == 1);
std::vector<double> dn = pa.densities();
assert(dn.size() == 2);
assert(dn[0] == 0);
assert(dn[1] == 2);
}
{
typedef std::piecewise_linear_distribution<> D;
typedef D::param_type P;
P pa(1, 10, 12, fw);
std::vector<double> iv = pa.intervals();
assert(iv.size() == 2);
assert(iv[0] == 10);
assert(iv[1] == 12);
std::vector<double> dn = pa.densities();
assert(dn.size() == 2);
assert(dn[0] == 20./44);
assert(dn[1] == 24./44);
}
{
typedef std::piecewise_linear_distribution<> D;
typedef D::param_type P;
P pa(2, 6, 14, fw);
std::vector<double> iv = pa.intervals();
assert(iv.size() == 3);
assert(iv[0] == 6);
assert(iv[1] == 10);
assert(iv[2] == 14);
std::vector<double> dn = pa.densities();
assert(dn.size() == 3);
assert(dn[0] == 0.075);
assert(dn[1] == 0.125);
assert(dn[2] == 0.175);
}
}