- Use a new buffered_function to replace the complicated generator code from ALPS.
- Clean the implementation of the random_generator
- update the documentation
- update to the new python wrapper (could not be done with the previous
version, because of lack of move constructor).
- when the ratio returned by an attempt of a move is infinite,
previous code was just throwing TRIQS_RUNTIME_ERROR.
- Now when the ratio is infinite, it is replaced by a large number
(>1 is enough for metropolis), and the sign is properly updated
using std::signbit.
- NB :
- a double/float in C++ can be : normal/ zero/ nan/ infinite / subnormal.
Here, the code will recover only from infinite case.
- std::signbit works for infinite (according to standard).
- for pieces that need to be precomputed for several
measures.
- put them under shared_ptr, and register then with add_measure_aux.
- they must be callable, as void ().
- TODO : add this in the doc when tested
