Deterministic ordering of irreps in generated C structures

Former-commit-id: 052e894a00d56492af3a8481a355cfff7f84cfa5

qpms/qpms_c.pyx

@@ -1230,7 +1230,8 @@ cdef class FinitePointGroup:
         self.G[0].irreps = <qpms_finite_group_irrep_t *>calloc(self.G[0].nirreps, sizeof(qpms_finite_group_irrep_t))
         if not self.G[0].irreps: raise MemoryError
         cdef int dim
-        for iri, (irname, irrep) in enumerate(info.irreps.items()):
+        for iri, irname in enumerate(sorted(info.irreps.keys())):
+            irrep = info.irreps[irname]
             is1d = isinstance(irrep[identity], (int, float, complex))
             dim = 1 if is1d else irrep[identity].shape[0]
             self.G[0].irreps[iri].dim = dim

qpms/symmetries.py

@@ -145,7 +145,8 @@ class SVWFPointGroupInfo: # only for point groups, coz in svwf_rep() I use I_tyt
         s += '  %d, // nirreps\n' % len(self.irreps)
         # struct qpms_finite_grep_irrep_t irreps[]
         s += '  (struct qpms_finite_group_irrep_t[]) { // irreps\n'
-        for irname, irrep in self.irreps.items():
+        for irname  in sorted(self.irreps.keys()):
+            irrep = self.irreps[irname]
             s += '    {\n' 
             is1d = isinstance(irrep[identity], (int, float, complex))
             dim = 1 if is1d else irrep[identity].shape[0]