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swig/Lib/python/pycomplex.swg

+/*
+  Defines the As/From converters for double/float complex, you need to
+  provide complex Type, the Name you want to use in the converters,
+  the complex Constructor method, and the Real and Imag complex
+  accessor methods.
+
+  See the std_complex.i and ccomplex.i for concret examples.
+*/
+
+/* the common from converter */
+%define %swig_fromcplx_conv(Type, Real, Imag)
+%fragment(SWIG_From_frag(Type),"header")
+{
+SWIGINTERNINLINE PyObject*
+SWIG_From(Type)(%ifcplusplus(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))
+{
+SWIGINTERN int
+SWIG_AsVal(Type) (PyObject *o, Type* val)
+{
+  if (PyComplex_Check(o)) {
+    if (val) *val = Constructor(PyComplex_RealAsDouble(o), PyComplex_ImagAsDouble(o));
+    return SWIG_OK;
+  } else {
+    double d;    
+    int res = SWIG_AddCast(SWIG_AsVal(double)(o, &d));
+    if (SWIG_IsOK(res)) {
+      if (val) *val = Constructor(d, 0.0);
+      return res;
+    }
+  }
+  return SWIG_TypeError;
+}
+}
+%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_AsVal_frag(float)) {
+SWIGINTERN int
+SWIG_AsVal(Type)(PyObject *o, Type *val)
+{
+  if (PyComplex_Check(o)) {
+    double re = PyComplex_RealAsDouble(o);
+    double im = PyComplex_ImagAsDouble(o);
+    if ((-FLT_MAX <= re && re <= FLT_MAX) && (-FLT_MAX <= im && im <= FLT_MAX)) {
+      if (val) *val = Constructor(%numeric_cast(re, float),
+                                  %numeric_cast(im, float));
+      return SWIG_OK;
+    } else {
+      return SWIG_OverflowError;
+    }    
+  } else {
+    float re;
+    int res = SWIG_AddCast(SWIG_AsVal(float)(o, &re));
+    if (SWIG_IsOK(res)) {
+      if (val) *val = Constructor(re, 0.0);
+      return res;
+    }
+  }
+  return SWIG_TypeError;
+}
+}
+
+%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)
+
+