allocatable_array_test, a C code which demonstrates how a main program can declare an allocatable array, which is then passed to a subroutine which allocates it, initializes it, and returns it to the calling program for further use.
The computer code and data files described and made available on this web page are distributed under the MIT license
allocatable_array_test is available in a C version and a C++ version and a FORTRAN90 version.
c_test, a C code which illustrates features of the C coding language.
c_arrays_test, a C code which uses vectors, matrices and tensors.