Testcase and fix for bug 1163440: vararg typemaps.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@12639 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/common.mk

@@ -510,7 +510,8 @@ C_TEST_CASES += \
 	typedef_struct \
 	typemap_subst \
 	union_parameter \
-	unions
+	unions \
+	varargs_typemap
 
 
 # Multi-module C++ test cases . (Can be run individually using make testcase.multicpptest)

Examples/test-suite/python/varargs_typemap_runme.py

@@ -0,0 +1,4 @@
+import varargs_typemap
+
+if (varargs_typemap.testfunc(1, 2.0, "three") != "three") :
+    raise RuntimeError("testfunc failed!")

Examples/test-suite/varargs_typemap.i

@@ -0,0 +1,43 @@
+%module varargs_typemap
+
+ /* The typemap and action are taken from the "Variable length arguments"
+  * chapter of the SWIG manual.
+  */
+
+%typemap(in) (...)(char *args[10]) {
+    int i;
+    int argc;
+    for (i = 0; i < 10; i++) args[i] = 0;
+    argc = PyTuple_Size(varargs);
+    if (argc > 10) {
+       PyErr_SetString(PyExc_ValueError,"Too many arguments");
+       return NULL;
+    }
+    for (i = 0; i < argc; i++) {
+       PyObject *o = PyTuple_GetItem(varargs,i);
+       if (!PyString_Check(o)) {
+           PyErr_SetString(PyExc_ValueError,"Expected a string");
+           return NULL;
+       }
+       args[i] = PyString_AsString(o);
+    }
+    $1 = (void *) args;
+}
+
+%feature("action") testfunc {
+   char **args = (char **) arg3;
+   result = testfunc(arg1, arg2, args[0], args[1], args[2], args[3], args[4],
+                   args[5],args[6],args[7],args[8],args[9], NULL);
+}
+
+%inline {
+char* testfunc (int arg1, double arg2, ...)
+{
+    va_list ap;
+    char *c;
+    va_start(ap, arg2);
+    c = va_arg(ap, char*);
+    va_end(ap);
+    return c;
+}
+}