On Friday, January 30, 2015 at 4:09:19 AM UTC+5:30, beli...@aol.com wrote: > On Thursday, January 29, 2015 at 10:01:00 AM UTC-5, Liu Zhenhai wrote: > > Hi, > > I am not sure here is the right place to ask this question, but I want to > > give it a shot:) > > are there fortran libs providing python like data type, such as set, dict, > > list? > > Thanks, > > Yours liuzhenhai > > The "Fortran library" http://bigdft.org/Wiki/index.php?title=Fortran_library > appears to have some of what you want. I have not tried the code. > > "The flib library provides an object called dictionary which is -- strictly > speaking -- more than just a dictionary. It is polymorphic and can be a list > or a dictionary, as in the python language. The other difference is that it > keeps the order of the elements, which is very useful if we want to dump its > contents to the yaml output. It represents indeed a tree of data, and for > these reasons it will most likely change name into f_tree in a future release > of the module. > > These dictionaries are also used in the other parts of the flib library and > are thus essential for its proper use. There are many examples in the file > dicts.f90."
Interesting Note the very first minimal example FORTRAN use dictionary type(dictionary), pointer :: d d=>dict_new() call set(d//'toto',1) v = d//'toto' call dict_free(d) The corresponding python d = dict() d['toto'] = 1 v = d['toto'] del(d) In particular note the del in the python. Should highlight the point that languages with gc, support data structures in a way that gc-less languages - Fortran, C, C++ - do not and cannot. -- https://mail.python.org/mailman/listinfo/python-list
