dfndarray

Minimalist C++ multidimensional array implementation.

Example source code:

#include "dfndarray.hxx"

#include <iostream>

using namespace std;

int main()
{
    dfndarray::Array3D<double> A(4,2,3);

    cout << "A           : " << A << endl;
    cout << "A.dim(0)    : " << A.dim(0) << endl;

    for (size_t i0 = 0 ; i0 < A.n0() ; i0++) {
    for (size_t i1 = 0 ; i1 < A.n1() ; i1++) {
    for (size_t i2 = 0 ; i2 < A.n2() ; i2++) {
        A(i0,i1,i2) = i0*100 + i1*10 + i2;
    } } }

    cout << "A(2,1,0)    : " << A(2,1,0) << endl;

    for (double* p = A.data() ; p < A.data()+A.size() ; p++) {
        *p = 0.;
    }

    cout << "A(2,1,0)    : " << A(2,1,0) << endl;

    // An exception will be catched if example.cxx is compiled with
    // -DDFNDARRAY_RUNTIME_CHECK, otherwise a segmentation fault
    // occurs, or a wrong result is returned.
    try {
        cout << A(10,10,10) << endl;
    } catch (dfndarray::DFArrayError e) {
        cout << "Exception catched: " << e.what() << endl;
    }

    return 0;
}

Compile:

$ ../waf build_debug

Run example:

$ ./build/debug/main

Result:

A           : <Array3D of shape (4,2,3) at 0x90b010>
A.dim(0)    : 4
A(2,1,0)    : 210
A(2,1,0)    : 0
Exception catched: /local/froger/miniconda/envs/test-dfndarray/include/dfndarray.hxx:330: expected 'i0 < m_n0', but got: '10 >= 4'.