Better handling of return values. Some bugfixes.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/branches/gsoc2008-maciekd@10618 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/c/return/Makefile

@@ -0,0 +1,14 @@
+TOP        = ../..
+SWIG       = $(TOP)/../preinst-swig -debug-module 4 > tree.txt
+CXXSRCS    = example.cxx
+TARGET     = example
+INTERFACE  = example.i
+MAIN       = test.c
+
+all::
+	$(MAKE) -f $(TOP)/Makefile CXXSRCS='$(CXXSRCS)' SWIG='$(SWIG)' \
+	TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' MAIN='$(MAIN)' c_cpp
+
+clean:
+	rm -f *.o *.out *.so *.a *.dll *.exe *_wrap* *_proxy* *~
+

Examples/c/return/example.cxx

@@ -0,0 +1,10 @@
+#include "example.h"
+
+Bar foo_ret_val() {
+  return Bar();
+}
+
+Bar* foo_ret_ptr(Bar* bar) {
+  return bar;
+}
+

Examples/c/return/example.h

@@ -0,0 +1,16 @@
+#include <stdio.h>
+
+class Bar {
+private:
+  int x;
+public:
+  Bar() : x(0) {}
+  ~Bar() {}
+  void set(int x) { this->x = x; }
+  int get() { return x; }
+};
+
+Bar foo_ret_val();
+//Bar& foo_ret_ref(Bar* bar);
+Bar* foo_ret_ptr(Bar* bar);
+

Examples/c/return/example.i

@@ -0,0 +1,8 @@
+%module example
+
+%{
+#include "example.h"
+%}
+
+%include "example.h"
+

Examples/c/return/test.c

@@ -0,0 +1,10 @@
+#include <stdio.h>
+
+#include "example_proxy.h"
+
+int main(int argc, char** argv) {
+  Bar b = foo_ret_val();
+  //Bar * bp = foo_ret_ptr(NULL);
+  printf("x = %d\n", Bar_get(&b));
+}
+