Fix more implicit noexcept warnings (automatic)

The previous run only fixed files in the sagemath-standard distribution,
just because we started with a list of warnings produced when compiling
just sagemath-standard.

This time we apply the same strategy to files in the other
distributions.

Author: tornaria

src/sage/graphs/bliss.pyx

@@ -65,7 +65,7 @@ cdef extern from "bliss_cpp/bliss_find_automorphisms.h":
     void bliss_find_automorphisms(Graph*, void (*)(void*, unsigned int, const unsigned int*), void*, Stats&)
     void bliss_find_automorphisms(Digraph*, void (*)(void*, unsigned int, const unsigned int*), void*, Stats&)
 
-cdef int encoding_numbits(int n):
+cdef int encoding_numbits(int n) noexcept:
     r"""
     Return the number of bits needed to encode the `n` numbers from `1` to
     `n`. In other words, the last bit set in `n`.
@@ -79,7 +79,7 @@ cdef int encoding_numbits(int n):
     return i
 
 
-cdef void add_gen(void *user_param, unsigned int n, const unsigned int *aut):
+cdef void add_gen(void *user_param, unsigned int n, const unsigned int *aut) noexcept:
     r"""
     Function called each time a new generator of the automorphism group is
     found.
@@ -129,7 +129,7 @@ cdef void add_gen(void *user_param, unsigned int n, const unsigned int *aut):
 # constructing bliss graphs from edge lists
 #####################################################
 
-cdef Graph *bliss_graph_from_labelled_edges(int Vnr, int Lnr, Vout, Vin, labels, partition):
+cdef Graph *bliss_graph_from_labelled_edges(int Vnr, int Lnr, Vout, Vin, labels, partition) noexcept:
     r"""
     Return a bliss graph from the input data
 
@@ -220,7 +220,7 @@ cdef Graph *bliss_graph_from_labelled_edges(int Vnr, int Lnr, Vout, Vin, labels,
 
     return g
 
-cdef Digraph *bliss_digraph_from_labelled_edges(int Vnr, int Lnr, Vout, Vin, labels, partition):
+cdef Digraph *bliss_digraph_from_labelled_edges(int Vnr, int Lnr, Vout, Vin, labels, partition) noexcept:
     r"""
     Return a bliss digraph from the input data
 
@@ -301,7 +301,7 @@ cdef Digraph *bliss_digraph_from_labelled_edges(int Vnr, int Lnr, Vout, Vin, lab
 #####################################################
 
 cdef canonical_form_from_edge_list(int Vnr, list Vout, list Vin, int Lnr=1, list labels=[],
-                                   list partition=None, bint directed=False, bint certificate=False):
+                                   list partition=None, bint directed=False, bint certificate=False) noexcept:
     r"""
     Return an unsorted list of labelled edges of a canonical form.
 
@@ -378,7 +378,7 @@ cdef canonical_form_from_edge_list(int Vnr, list Vout, list Vin, int Lnr=1, list
     return new_edges
 
 
-cpdef canonical_form(G, partition=None, return_graph=False, use_edge_labels=True, certificate=False):
+cpdef canonical_form(G, partition=None, return_graph=False, use_edge_labels=True, certificate=False) noexcept:
     r"""
     Return a canonical label for the given (di)graph.
 
@@ -599,7 +599,7 @@ cpdef canonical_form(G, partition=None, return_graph=False, use_edge_labels=True
 #####################################################
 
 cdef automorphism_group_gens_from_edge_list(int Vnr, Vout, Vin, int Lnr=1, labels=[],
-                                            int2vert=[], partition=None, bint directed=False):
+                                            int2vert=[], partition=None, bint directed=False) noexcept:
     r"""
     Return an unsorted list of labelled edges of a canonical form.
 
@@ -650,7 +650,7 @@ cdef automorphism_group_gens_from_edge_list(int Vnr, Vout, Vin, int Lnr=1, label
 
     return [[cyc for cyc in gen if cyc[0] is not None] for gen in gens]
 
-cpdef automorphism_group(G, partition=None, use_edge_labels=True):
+cpdef automorphism_group(G, partition=None, use_edge_labels=True) noexcept:
     """
     Return the automorphism group of the given (di)graph.
 
@@ -848,7 +848,7 @@ cpdef automorphism_group(G, partition=None, use_edge_labels=True):
 # old direct interactions graphs <-> bliss graphs
 #####################################################
 
-cdef Graph *bliss_graph(G, partition, vert2int, int2vert):
+cdef Graph *bliss_graph(G, partition, vert2int, int2vert) noexcept:
     r"""
     Return a bliss copy of a graph G
 
@@ -882,7 +882,7 @@ cdef Graph *bliss_graph(G, partition, vert2int, int2vert):
     return g
 
 
-cdef Digraph *bliss_digraph(G, partition, vert2int, int2vert):
+cdef Digraph *bliss_digraph(G, partition, vert2int, int2vert) noexcept:
     r"""
     Return a bliss copy of a digraph G
 

src/sage/graphs/graph_decompositions/tdlib.pyx

@@ -76,7 +76,7 @@ cdef extern from "sage_tdlib.cpp":
 # the following will be used implicitly to do the translation
 # between Sage graph encoding and BGL graph encoding.
 
-cdef make_tdlib_graph(G, vertex_to_int, vector[unsigned int] &V, vector[unsigned int] &E):
+cdef make_tdlib_graph(G, vertex_to_int, vector[unsigned int] &V, vector[unsigned int] &E) noexcept:
     for i in range(G.order()):
         V.push_back(i)
 
@@ -85,7 +85,7 @@ cdef make_tdlib_graph(G, vertex_to_int, vector[unsigned int] &V, vector[unsigned
         E.push_back(vertex_to_int[v])
 
 
-cdef make_sage_decomp(G, vector[vector[int]] &V, vector[unsigned int] &E, int_to_vertex):
+cdef make_sage_decomp(G, vector[vector[int]] &V, vector[unsigned int] &E, int_to_vertex) noexcept:
     cdef int i, j
     for i in range(len(V)):
         G.add_vertex(Set([int_to_vertex[j] for j in V[i]]))

src/sage/libs/coxeter3/coxeter.pxd

@@ -21,11 +21,11 @@ cdef class CoxGroup(SageObject):
     cdef object cartan_type
     cdef dict in_ordering
     cdef dict out_ordering
-    cpdef object full_context(self)
+    cpdef object full_context(self) noexcept
 
 cdef class CoxGroupElement:
     cdef c_CoxWord word
     cdef c_CoxGroup* group
     cdef CoxGroup _parent_group
-    cdef CoxGroupElement _new(self)
-    cpdef CoxGroup parent_group(self)
+    cdef CoxGroupElement _new(self) noexcept
+    cpdef CoxGroup parent_group(self) noexcept

src/sage/libs/coxeter3/coxeter.pyx

@@ -540,7 +540,7 @@ cdef class CoxGroup(SageObject):
         """
         return isFiniteType(self.x)
 
-    cpdef full_context(self):
+    cpdef full_context(self) noexcept:
         """
         Make all of the elements of a finite Coxeter group available.
 
@@ -741,7 +741,7 @@ cdef class CoxGroupElement:
 
     inverse = __invert__
 
-    cpdef CoxGroup parent_group(self):
+    cpdef CoxGroup parent_group(self) noexcept:
         """
         Return the parent Coxeter group for this element.
 
@@ -959,7 +959,7 @@ cdef class CoxGroupElement:
         cdef Generator ss = self._parent_group.in_ordering[s]
         return self.group.isDescent(self.word, s)
 
-    cdef CoxGroupElement _new(self):
+    cdef CoxGroupElement _new(self) noexcept:
         """
         Return a new copy of this element.
         """
@@ -1130,7 +1130,7 @@ cdef class CoxGroupElement:
         cdef CoxNbr y = self.group.extendContext(vv.word)
         return ZZ(self.group.mu(x,y))
 
-cdef LFlags_to_list(CoxGroup parent, LFlags f):
+cdef LFlags_to_list(CoxGroup parent, LFlags f) noexcept:
     """
     Return the right descent set of this element.
 

src/sage/libs/meataxe.pyx

@@ -71,15 +71,15 @@ cdef Matrix_t *rawMatrix(int Field, list entries) except NULL:
 
 from sage.cpython.string cimport str_to_bytes, char_to_str
 
-cdef void sage_meataxe_error_handler(const MtxErrorRecord_t *err):
+cdef void sage_meataxe_error_handler(const MtxErrorRecord_t *err) noexcept:
     sig_block()
     ErrText  = char_to_str(err.Text)
     BaseName = char_to_str(err.FileInfo.BaseName)
     LineNo   = err.LineNo
     PyErr_SetObject(ErrMsg.get(ErrText.split(': ')[-1], RuntimeError), f"{ErrText} in file {BaseName} (line {LineNo})")
     sig_unblock()
 
-cdef inline meataxe_init():
+cdef inline meataxe_init() noexcept:
     ## Assign to a variable that enables MeatAxe to find
     ## its multiplication tables.
     global MtxLibDir

src/sage/libs/sirocco.pyx

@@ -27,7 +27,7 @@ cdef extern from "sirocco.h":
     double* homotopyPath_comps(int degree, double *_coef, double _y0R, double _y0I, int nothercomps, int *degreescomps, double *_coefscomps)
 
 
-cpdef list[list] contpath_mp(int deg, list values, RealNumber y0r, RealNumber y0i, int prec):
+cpdef list[list] contpath_mp(int deg, list values, RealNumber y0r, RealNumber y0i, int prec) noexcept:
     """
     Mimics :func:`contpath`, but with the following differences:
 
@@ -88,7 +88,7 @@ cpdef list[list] contpath_mp(int deg, list values, RealNumber y0r, RealNumber y0
     free(rop)
     return l
 
-cpdef list[list] contpath_mp_comps(int deg, list values, RealNumber y0r, RealNumber y0i, int prec, list otherdegs, list othercoefs):
+cpdef list[list] contpath_mp_comps(int deg, list values, RealNumber y0r, RealNumber y0i, int prec, list otherdegs, list othercoefs) noexcept:
     """
     Mimics :func:`contpath`, but with the following differences:
 
@@ -167,7 +167,7 @@ cpdef list[list] contpath_mp_comps(int deg, list values, RealNumber y0r, RealNum
     return l
 
 
-cpdef list[list] contpath(int deg, list values, double y0r, double y0i):
+cpdef list[list] contpath(int deg, list values, double y0r, double y0i) noexcept:
     """
     INPUT:
 
@@ -222,7 +222,7 @@ cpdef list[list] contpath(int deg, list values, double y0r, double y0i):
     free(c_values)
     return l
 
-cpdef list[list] contpath_comps(int deg, list values, double y0r, double y0i, list otherdegrees, list othercoefs):
+cpdef list[list] contpath_comps(int deg, list values, double y0r, double y0i, list otherdegrees, list othercoefs) noexcept:
     """
     INPUT:
 

src/sage/matrix/matrix_gfpn_dense.pxd

@@ -18,20 +18,20 @@ from sage.libs.meataxe cimport *
 cdef class FieldConverter_class:
     cdef field  # A function converting an int to a field element
     cdef FEL zero_FEL  # the FEL representation of zero
-    cpdef fel_to_field(self, FEL x)
+    cpdef fel_to_field(self, FEL x) noexcept
     cpdef FEL field_to_fel(self, x) except 255
 
-cdef FieldConverter_class FieldConverter(field)
+cdef FieldConverter_class FieldConverter(field) noexcept
 
 cdef class Matrix_gfpn_dense(Matrix_dense):
     cdef Matrix_t *Data
     cdef readonly FieldConverter_class _converter
 
-    cdef set_slice_unsafe(self, Py_ssize_t i, Matrix_gfpn_dense S)
-    cdef inline int get_unsafe_int(self, Py_ssize_t i, Py_ssize_t j)
-    cpdef Matrix_gfpn_dense get_slice(self, Py_ssize_t i, Py_ssize_t j)
-    cpdef list _rowlist_(self, i, j=*)
-    cpdef Matrix_gfpn_dense _multiply_classical(Matrix_gfpn_dense self, Matrix_gfpn_dense right)
-    cpdef Matrix_gfpn_dense _multiply_strassen(Matrix_gfpn_dense self, Matrix_gfpn_dense right, cutoff=*)
+    cdef set_slice_unsafe(self, Py_ssize_t i, Matrix_gfpn_dense S) noexcept
+    cdef inline int get_unsafe_int(self, Py_ssize_t i, Py_ssize_t j) noexcept
+    cpdef Matrix_gfpn_dense get_slice(self, Py_ssize_t i, Py_ssize_t j) noexcept
+    cpdef list _rowlist_(self, i, j=*) noexcept
+    cpdef Matrix_gfpn_dense _multiply_classical(Matrix_gfpn_dense self, Matrix_gfpn_dense right) noexcept
+    cpdef Matrix_gfpn_dense _multiply_strassen(Matrix_gfpn_dense self, Matrix_gfpn_dense right, cutoff=*) noexcept
 
-cdef Matrix_gfpn_dense new_mtx(Matrix_t* mat, Matrix_gfpn_dense template)
+cdef Matrix_gfpn_dense new_mtx(Matrix_t* mat, Matrix_gfpn_dense template) noexcept