swig/Lib/python/complex_common.i
2004-03-17 09:41:19 +00:00

106 lines
2.7 KiB
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#ifndef __python_complex_common_i__
#define __python_complex_common_i__
/*
Defines the As/From conversors for double/float complex, you need to
provide complex Type, the Name you want to use in the conversors,
the complex Constructor method, and the Real and Imag complex
accesor methods.
See the std_complex.i and ccomplex.i for concret examples.
*/
/* the common from conversor */
%define %swig_fromcplx_conv(Type, Real, Imag)
%fragment(SWIG_From_frag(Type),"header")
%{
SWIGSTATICINLINE(PyObject*)
SWIG_From_meth(Type)(SWIG_cplusplus(const Type&, Type) c)
{
return PyComplex_FromDoubles(Real(c), Imag(c));
}
%}
%enddef
/* the double case */
%define %swig_cplxdbl_conv(Type, Constructor, Real, Imag)
%fragment(SWIG_AsVal_frag(Type),"header",
fragment=SWIG_AsVal_frag(double))
%{
SWIGSTATICINLINE(int)
SWIG_AsVal_meth(Type) (PyObject *o, Type* val)
{
if (PyComplex_Check(o)) {
if (val) *val = Constructor(PyComplex_RealAsDouble(o),
PyComplex_ImagAsDouble(o));
return 1;
} else {
double d;
if (SWIG_AsVal_meth(double)(o, &d)) {
if (val) *val = Constructor(d, 0);
return 1;
} else {
PyErr_Clear();
}
}
if (val) {
PyErr_SetString(PyExc_TypeError, "a Type is expected");
}
return 0;
}
%}
%swig_fromcplx_conv(Type, Real, Imag);
%enddef
/* the float case */
%define %swig_cplxflt_conv(Type, Constructor, Real, Imag)
%fragment(SWIG_AsVal_frag(Type),"header",
fragment="SWIG_CheckDoubleInRange",
fragment=SWIG_AsVal_frag(float))
%{
SWIGSTATICINLINE(int)
SWIG_AsVal_meth(Type)(PyObject *o, Type *val)
{
const char* errmsg = val ? #Type : 0;
if (PyComplex_Check(o)) {
double re = PyComplex_RealAsDouble(o);
double im = PyComplex_ImagAsDouble(o);
if (SWIG_CheckDoubleInRange(re, FLT_MIN, FLT_MAX, errmsg)
&& SWIG_CheckDoubleInRange(im, FLT_MIN, FLT_MAX, errmsg)) {
if (val) *val = Constructor(swig_numeric_cast(re, float),
swig_numeric_cast(im, float));
return 1;
} else {
return 0;
}
} else {
double re;
if (SWIG_AsVal_meth(double)(o, &re)) {
if (SWIG_CheckDoubleInRange(re, FLT_MIN, FLT_MAX, errmsg)) {
if (val) *val = Constructor(swig_numeric_cast(re,float), 0);
return 1;
} else {
return 0;
}
} else {
PyErr_Clear();
}
}
if (val) {
PyErr_SetString(PyExc_TypeError, "a Type is expected");
}
return 0;
}
%}
%swig_fromcplx_conv(Type, Real, Imag);
%enddef
#define %swig_cplxflt_convn(Type, Constructor, Real, Imag) \
%swig_cplxflt_conv(Type, Constructor, Real, Imag)
#define %swig_cplxdbl_convn(Type, Constructor, Real, Imag) \
%swig_cplxdbl_conv(Type, Constructor, Real, Imag)
#endif //__python_complex_common_i__