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CPP_ARRAYS\ Vectors, Matrices, Tensors in C++ {#cpp_arrays-vectors-matrices-tensors-in-c align=”center”} =================================

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

Licensing: {#licensing align=”center”}

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

Languages: {#languages align=”center”}

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

Related Data and Programs: {#related-data-and-programs align=”center”}

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: {#reference align=”center”}

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: {#examples-and-tests align=”center”}

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.

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Last revised on 07 October 2012.