Iterations through 1d containers

Introduction

Here, we present various ways to computes the mean of 1d container denoted S1d. It illustrates the different uses to iterate through monodimensional containers Group of Containers like slip::block , slip::Array, slip::Vector...

The classical loop

slip::Array<double> S1d(5);
double mean = 0.0;
const std::size_t size = S1.size();
for(std::size_t j = 0; j < size; ++j)
{
            mean += S1d[j]; //or equivalently: mean += S1d(j);
}
mean /= double(size);

Global iterators

These iterators follow the RandomAccessIterator concept of the standard library.

Direct iteration

double m = slip::mean<double>(S1d.begin(),S1d.end());

Reverse iteration

double m = slip::mean<double>(S1d.rbegin(),S1d.rend());

Range iterators

These iterators follow the RandomAccessIterator concept of the standard library.

Range direct iterator

slip::Array<int> S1d(10);
slip::Range<int> range(0,10,2);
double m = slip::mean<double> (S1d.begin(range),S1d.end(range));

Range reverse iterator

slip::Array<int> S1d(10);
slip::Range<int> range(0,10,2);
double m = slip::mean<double> (S1d.rbegin(range),S1d.rend(range));