C++11 compatibility

• Now compatible with C++11.
• When sampling an empty set, it raises a KeyError instead or returning a
  None. This also affects the behavior of sampling without replacement when
  n_samplesis larger than the set size.
• Other forbidden operations raises an error as well instead of returning a
  None.

Fix methods for SamplableSet with unspecified type

Fixed

• The __str__ method now works with SamplableSet of unspecified underlying
  type.
• All C++ methods (e.g. size) raise an error message until the type is
  specified/inferred.

Bugfix for the copy constructor

Added

• Bound check-up now gives a more complete output message.

Fixed

• The copy constructor was missing minimal and maximal weight attributes.

Bound check-up in C++, new empty method

Added

• Bound check-up for the weight of elements in C++ (insertion, set weight).
• New empty method to test if the set is empty.

Changed

• Bound checking (exception throw) is now mainly done in C++.

Fixed

• In python, if one checks the weight of an element not in the set, it
  now returns None.

Simpler initialization and c++ static library availability

Added

• New tuple 2 and 3-tuple of int and str as available cpp_type.
• A samplable set can be instanciated empty without specifying the cpp_type.
  It will be inferred at the first insertion.

Changed

• Structure of C++ source files to allow the compilation of a static library.

Fixed

Test for out of bound weight.

Shared RNG

Changed

• Class name in C++
• RNG is now a static member of C++ BaseSamplableSet class. This means all
  objects created (irrespective of the C++ type of the set) share the same RNG.

Removed

• Obsolete C++ type (Edge, DoubleInt, etc.). Only int and str cpp types
  remain.
• Initialization of the seed for the RNG at construction. Since the RNG now
  belong to the class, it exits without any object created, and it is
  initialized with current time.

Added

A new static member function for the class SamplableSet to seed the RNG.
Seeding the generator influences all ensuing (or existing) sets objects.

Sampling without replacement

• Sampling without replacement
• Sets are seeded with current time instead of a fixed value by default
• Bugfix compilation on Mac

Bug and warning fix

• Compilation warnings fixed by reordering initialization of members in C++
• Bug fix for C++ object only. There was an error in the assignement operator implementation. This wouldn't cause issue for python only usage, but could lead to memory issues when using the C++ object directly.

Feature : iterator for SamplableSet objects

• New template declaration function to facilitate the addition of new types in the c++ binder file
• New default SamplableSet with strings
• Implemented C++ methods to iterate over all the elements of a set
• Implemented Python generator/iterator methods
• SamplableSet objects are now iterable
• Implemented a bunch of test (uses pytest)

Post-merging with jsleb333 pythonic wrapper

First true release, with a complete python wrapper.