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% This file shows how to use the varray-module to treat a file as an
% array of objects.
import ("varray");
% First of all, create an array of doubles
static variable x = [1:1000.0:1.0];
% and write it to disk
static variable file = "varray_example.dat";
static variable fp = fopen (file, "wb");
if (fp == NULL)
{
() = fprintf (stderr, "failed to open %s\n", file);
exit (1);
}
if ((-1 == fwrite (x, fp))
or (-1 == fclose (fp)))
{
() = fprintf (stderr, "Failed to write x\n");
exit (1);
}
% Now associate an array with the file
variable y = mmap_array (file, 0, _typeof(x), length(x));
if (length (where (y != x)))
{
fprintf (stderr, "mmap_array has failed\n");
exit (1);
}
y = 0; % remove the map
exit (0);
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