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discret.cpp
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Tue, Oct 15, 16:32

discret.cpp
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#include "discret.h"
#include "regex.h"
interval::interval(const std::initializer_list<discret>& list)
: L(0), points(list)
{
// last point
if (points.size() > 0)
L = (*points.rbegin()).b;
}
void interval::push(const discret& d)
{
points.insert(d);
}
interval& interval::operator<<(const discret& d)
{
push(d);
return *this;
}
double interval::operator[](std::size_t i) const
{
double a = 0;
for (const auto& d : points)
{
if (i < d.N)
return a + i * (d.b - a) / d.N;
i -= d.N;
a = d.b;
}
return L;
}
double interval::operator[](double alpha) const
{
double t = alpha - int(alpha);
std::size_t k = static_cast<std::size_t>(alpha);
return t * (*this)[k+1] + (1 - t) * (*this)[k];
}
std::size_t interval::N() const
{
std::size_t out(0);
for (auto d : points)
out += d.N;
return out;
}
std::size_t interval::N(std::size_t i) const
{
for (auto d : points)
{
if (i-- == 0)
return d.N;
}
return 0;
}
double interval::border(std::size_t i) const
{
for (auto d : points)
{
if (i-- == 0)
return d.b;
}
return 0;
}
std::set<interval::discret>::iterator interval::begin()
{
return points.begin();
}
std::set<interval::discret>::const_iterator interval::begin() const
{
return points.begin();
}
std::set<interval::discret>::iterator interval::end()
{
return points.end();
}
std::set<interval::discret>::const_iterator interval::end() const
{
return points.end();
}
bool interval::discret::operator<(const interval::discret& other) const
{
return b < other.b;
}
std::istream& operator>>(std::istream& is, interval::discret& d)
{
return regex::parse(is, regex::term::brack, d.b, d.N);
}
std::ostream& operator<<(std::ostream& os, const interval::discret& d)
{
return regex::print(os, regex::term::brack, d.b, d.N);
}
std::istream& operator>>(std::istream& is, interval& obj)
{
return regex::vparse<interval::discret>(is, regex::term::brack, obj);
}
std::ostream& operator<<(std::ostream& os, const interval& obj)
{
return regex::vprint(os, regex::term::brack, obj);
}

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