src/umath/umathmodule.c.src File Reference

#include "Python.h"
#include "npy_config.h"
#include "numpy/noprefix.h"
#include "numpy/ufuncobject.h"
#include "abstract.h"
#include "numpy/npy_math.h"
#include "funcs.inc"
#include "loops.h"
#include "ufunc_object.h"
#include "ufunc_type_resolution.h"
#include "__umath_generated.c"
#include "__ufunc_api.c"
#include <stdio.h>

Defines
#define	_UMATHMODULE
#define	NPY_NO_DEPRECATED_API
#define	LDEXP_LONG(typ)   typ##_ldexp
#define	RETVAL
#define	ADDCONST(str)   PyModule_AddIntConstant(m, #str, UFUNC_##str)
#define	ADDSCONST(str)   PyModule_AddStringConstant(m, "UFUNC_" #str, UFUNC_##str)
Functions
static int	object_ufunc_type_resolution (PyUFuncObject *ufunc, NPY_CASTING casting, PyArrayObject **operands, PyObject *type_tup, PyArray_Descr **out_dtypes, PyUFuncGenericFunction *out_innerloop, void **out_innerloopdata)
static PyObject *	ufunc_frompyfunc (PyObject *NPY_UNUSED(dummy), PyObject *args, PyObject *NPY_UNUSED(kwds))
static void	InitOtherOperators (PyObject *dictionary)
PyMODINIT_FUNC	initumath (void)
Variables
static PyUFuncGenericFunction	pyfunc_functions [] = {PyUFunc_On_Om}
static PyUFuncGenericFunction	frexp_functions []
static void *	blank3_data [] = { (void *)NULL, (void *)NULL, (void *)NULL}
static void *	blank6_data []
static char	frexp_signatures []
static PyUFuncGenericFunction	ldexp_functions []
static char	ldexp_signatures []
static struct PyMethodDef	methods []

---

Define Documentation

#define _UMATHMODULE

vim:syntax=c

* INCLUDES **

_UMATHMODULE IS needed in __ufunc_api.h, included from numpy/ufuncobject.h. This is a mess and it would be nice to fix it. It has nothing to do with __ufunc_api.c

#define ADDCONST

(

str

)

PyModule_AddIntConstant(m, #str, UFUNC_##str)

#define ADDSCONST

(

str

)

PyModule_AddStringConstant(m, "UFUNC_" #str, UFUNC_##str)

#define LDEXP_LONG

(

typ

)

typ##_ldexp

#define NPY_NO_DEPRECATED_API

#define RETVAL

---

Function Documentation

static void InitOtherOperators

(

PyObject *

dictionary

)

[static]

PyMODINIT_FUNC initumath

(

void

)

Create the module and add the functions

Import the array

Initialize the types

Add some symbolic constants to the module

Load the ufunc operators into the array module's namespace

Setup the array object's numerical structures with appropriate

ufuncs in d

Check for errors

static int object_ufunc_type_resolution	(	PyUFuncObject *	ufunc,
		NPY_CASTING	casting,
		PyArrayObject **	operands,
		PyObject *	type_tup,
		PyArray_Descr **	out_dtypes,
		PyUFuncGenericFunction *	out_innerloop,
		void **	out_innerloopdata
	)		[static]

References _tagPyUFuncObject::data, _tagPyUFuncObject::functions, _tagPyUFuncObject::nin, _tagPyUFuncObject::nout, NPY_OBJECT, and PyArray_DescrFromType().

Referenced by ufunc_frompyfunc().

static PyObject* ufunc_frompyfunc	(	PyObject *	NPY_UNUSEDdummy,
		PyObject *	args,
		PyObject *	NPY_UNUSEDkwds
	)		[static]

Keywords are ignored for now

generalized ufunc

self->ptr holds a pointer for enough memory for self->data[0] (fdata) self->data self->name self->types

To be safest, all of these need their memory aligned on void * pointers Therefore, we may need to allocate extra space.

Do a better job someday

References PyUFunc_PyFuncData::callable, fname, function(), PyUFunc_PyFuncData::nin, PyUFunc_PyFuncData::nout, object_ufunc_type_resolution(), PyArray_malloc, PyArray_OBJECT, pyfunc_functions, PyUFunc_None, and PyUFunc_Type.

---

Variable Documentation

void* blank3_data[] = { (void *)NULL, (void *)NULL, (void *)NULL} [static]

void* blank6_data[] [static]

Initial value:

 { (void *)NULL, (void *)NULL, (void *)NULL,
                                (void *)NULL, (void *)NULL, (void *)NULL}

PyUFuncGenericFunction frexp_functions[] [static]

Initial value:

 {




    DOUBLE_frexp



}

* SETUP UFUNCS **

Less automated additions to the ufuncs

char frexp_signatures[] [static]

Initial value:

 {




    PyArray_DOUBLE, PyArray_DOUBLE, PyArray_INT



}

PyUFuncGenericFunction ldexp_functions[] [static]

Initial value:

 {






    DOUBLE_ldexp,






}

char ldexp_signatures[] [static]

Initial value:

 {






    PyArray_DOUBLE, PyArray_INT, PyArray_DOUBLE,
    PyArray_DOUBLE, PyArray_LONG, PyArray_DOUBLE




}

struct PyMethodDef methods[] [static]

Initial value:

 {
    {"frompyfunc", (PyCFunction) ufunc_frompyfunc,
     METH_VARARGS | METH_KEYWORDS, NULL},
    {"seterrobj", (PyCFunction) ufunc_seterr,
     METH_VARARGS, NULL},
    {"geterrobj", (PyCFunction) ufunc_geterr,
     METH_VARARGS, NULL},
    {NULL, NULL, 0, NULL}                
}

Setup the umath module

Remove for time being, it is declared in __ufunc_api.h

static PyTypeObject PyUFunc_Type;

PyUFuncGenericFunction pyfunc_functions[] = {PyUFunc_On_Om} [static]

* INCLUDE GENERATED CODE **

Referenced by ufunc_frompyfunc().