CPP_ARRAYS
Vectors, Matrices, Tensors in C++

CPP_ARRAYS is a directory of C++ programs which illustrate the use of vectors, matrices and tensors.

Licensing:

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages:

CPP_ARRAYS is available in a C version and a C++ version.

Related Data and Programs:

CPP, C++ programs which illustrate some features of the C++ language;

CPP_INTRINSICS, a C++ program which illustrates the use of intrinsic functions.

CPP_RANDOM, C++ programs which illustrate the use of the random number generator routines.

Reference:

1. Paul Deitel, Harvey Deitel,
   C++: How to Program,
   Seventh Edition,
   Prentice Hall, 2011,
   ISBN: 978-013-216541-9,
   LC: QA76.73.C153.D45.
2. Steve Oaulline,
   Practical C++ Programming,
   Second Edition,
   O'Reilly, 2003,
   ISBN: 1-56592-139-9,
   LC: QA76.73.C15.O84.
3. Bjarne Stroustrup,
   The C++ Programming Language,
   Addison-Wesley, 2000,
   ISBN: 0-201-70073-5,
   LC: QA76.73.C153.S77.

Examples and Tests:

ARRAYS is a very simple example of how to set up arrays in C++. In particular, we note that vectors are easy to declare with fixed or dynamic dimensions, but that arrays of dimension 2 or greater aren't easy to declare dynamically. The example shows how to work around this by settting up a two dimensional array as a one dimensional vector.

• arrays.cpp, the source code;
• arrays_output.txt, the output file.

POINTERS shows how a two-dimensional array can be defined, either as row or column major, using pointers. Unfortunately, the column major format means that the double indexing lists the column index first!

• pointers.cpp, the source code;
• pointers_output.txt, the output file;

TENSOR_EXAMPLE1 demonstrates how a 3D array can be created by repeated used of the vector operator.

• tensor_example1.cpp, the source code;
• tensor_example1_output.txt, the output file.

TENSOR_EXAMPLE2 demonstrates how a 3D array can be created by using a class child of std::vector, which implements a 3D array as a linear vector. This is probably more efficient.

• tensor_example2.cpp, the source code;
• tensor_example2_output.txt, the output file.

You can go up one level to the C++ source codes.