A Class Template for N-Dimensional Generic Resizable Arrays
By Giovanni Bavestrelli, December 01, 2000
Need dynamic arrays that are efficient and intuitive? Try a little template recursion and specialization.
December 2000/A Class Template for N-Dimensional Generic Resizable Arrays/Listing 1
Array<int, 3> A3; // Three dimensional array of ints
unsigned int Size3 [3]= { 10, 20, 30 }; // Array dimensions
A3.resize(Size3); // Can change array size any time
A3[5][10][15]=3; // OK, setting an array element
int j=A3[30][0][0]; // Run-time bounds checking error
j=A3[1][2]; // Compile-time error, missing brackets
A3[1][2][1][2]; // Compile-time error, extra brackets
// We can use it also like an STL container
int * pMaxVal=std::max_element(A3.begin(),A3.end());
// Resize array
unsigned int NewSize3 [3]= { 30, 20, 10 }; // Array dimensions
A3.resize(NewSize3); // Can change size anytime
A3[29][19][9]=0; // Set last element
