No real progress yet - only one subthread seems to run. Switching back to working.
initial test of multiple threads seems correct
Improved the threaded testing branch. Need to add full search to searchRingsArray_pthread.
Working version using searchRingsArray_pthread. The function launches 4 sub threads to search the NodePairs array.
Removed unused files
Small bug in makefile
New folder Cairo for testing graphical representations of Toctas. Two small test files.
Starting to develop a graphical representation of a tocta.
Working version of scaledpng. Use  make scaledpng && ./scaledpng && ./image to compile/run. Co-ords of numbers need to be adjusted.
Refining the co-ords for the primes.
direct.c writes the tocta to a gtk window.
Testing branch, Folder Gtk3. Example 3 which uses data derived from Tocta_82.dat is giving good results.
Updating repos
Dev code in dev1.c
Added a marker (Primes>) to .dat file. Example4.c correctly scanning the .dat file.
example4 now prints a row of 4 toctas.
Scroll bars not working.
partly working scrolledwindow version of example5
End Vacation
setting up on new machine