Split C complex.h from C++ complex testing

Examples/test-suite/ccomplextest.i

@@ -0,0 +1,79 @@
+%module ccomplextest
+
+%include <complex.i>
+
+%{
+#include <complex.h>
+
+#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199001L
+#define HAS_C99_COMPLEX_FOR_TESTING 1
+#else
+/* complex not supported - hack tests to just test plain floating point numbers */
+/* some pre c99 compilers (gcc-4.x) don't define _Complex but do define complex */
+#define _Complex
+#if !defined(complex)
+#  define complex
+#endif
+#define conj
+#define conjf
+#if defined(I)
+#  undef I
+#  define I 1
+#endif
+#define HAS_C99_COMPLEX_FOR_TESTING 0
+#endif
+%}
+
+%inline
+{
+  int has_c99_complex(void) {
+    return HAS_C99_COMPLEX_FOR_TESTING;
+  }
+
+  complex double Conj(complex double a)
+  {
+    return conj(a);
+  }
+
+
+  complex float Conjf(complex float a)
+  {
+    return conjf(a);
+  }
+
+
+  double complex Conj1(double complex a)
+  {
+    return conj(a);
+  }
+
+
+  float complex Conjf1(float complex a)
+  {
+    return conjf(a);
+  }
+
+
+  _Complex double Conj2(_Complex double a)
+  {
+    return conj(a);
+  }
+
+
+  _Complex float Conjf2(_Complex float a)
+  {
+    return conjf(a);
+  }
+
+
+  double _Complex Conj3(double _Complex a)
+  {
+    return conj(a);
+  }
+
+
+  float _Complex Conjf3(float _Complex a)
+  {
+    return conjf(a);
+  }
+}