diff options
Diffstat (limited to 'Cython/Utility/UFuncs.pyx')
| -rw-r--r-- | Cython/Utility/UFuncs.pyx | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/Cython/Utility/UFuncs.pyx b/Cython/Utility/UFuncs.pyx new file mode 100644 index 000000000..c2043e8cc --- /dev/null +++ b/Cython/Utility/UFuncs.pyx @@ -0,0 +1,51 @@ +##################### UFuncDefinition ###################### + +cdef extern from *: + ctypedef int npy_intp + struct PyObject + PyObject* __Pyx_NewRef(object) + {{inline_func_declaration}} + +# variable names have to come from tempita to avoid duplication +@cname("{{func_cname}}") +cdef void {{func_cname}}(char **args, const npy_intp *dimensions, const npy_intp* steps, void* data) except * {{"nogil" if will_be_called_without_gil else ""}}: + cdef npy_intp i + cdef npy_intp n = dimensions[0] + {{for idx, tp in enumerate(in_types)}} + cdef char* in_{{idx}} = args[{{idx}}] + cdef {{tp.empty_declaration_code(pyrex=True)}} cast_in_{{idx}} + {{endfor}} + {{for idx, tp in enumerate(out_types)}} + cdef char* out_{{idx}} = args[{{idx+len(in_types)}}] + cdef {{tp.empty_declaration_code(pyrex=True)}} cast_out_{{idx}} + {{endfor}} + {{for idx in range(len(out_types)+len(in_types))}} + cdef npy_intp step_{{idx}} = steps[{{idx}}] + {{endfor}} + + {{"with gil" if (not nogil and will_be_called_without_gil) else "if True"}}: + for i in range(n): + {{for idx, tp in enumerate(in_types)}} + {{if tp.is_pyobject}} + cast_in_{{idx}} = (<{{tp.empty_declaration_code(pyrex=True)}}>(<void**>in_{{idx}})[0]) + {{else}} + cast_in_{{idx}} = (<{{tp.empty_declaration_code(pyrex=True)}}*>in_{{idx}})[0] + {{endif}} + {{endfor}} + + {{", ".join("cast_out_{}".format(idx) for idx in range(len(out_types)))}} = \ + {{inline_func_call}}({{", ".join("cast_in_{}".format(idx) for idx in range(len(in_types)))}}) + + {{for idx, tp in enumerate(out_types)}} + {{if tp.is_pyobject}} + (<void**>out_{{idx}})[0] = <void*>__Pyx_NewRef(cast_out_{{idx}}) + {{else}} + (<{{tp.empty_declaration_code(pyrex=True)}}*>out_{{idx}})[0] = cast_out_{{idx}} + {{endif}} + {{endfor}} + {{for idx in range(len(in_types))}} + in_{{idx}} += step_{{idx}} + {{endfor}} + {{for idx in range(len(out_types))}} + out_{{idx}} += step_{{idx+len(in_types)}} + {{endfor}} |