Double pointer support

tests/include/test.c

@@ -60,6 +60,10 @@ void *test_call9() {
 	return NULL;
 }
 
+void **test_call10(int **param1) {
+	return NULL;
+}
+
 void multiline1(void) {}
 
 void *multiline2(void) {

tests/include/test.h

@@ -108,6 +108,7 @@ unsigned char test_call_param6(UNION2 param1);
 int test_call_param7(union UNION1 param1);
 float test_call_param8(int *param1);
 void *test_call9();
+void **test_call10(int **param1);
 
 // Issue #58
 void
@@ -131,6 +132,20 @@ UNION3 test_call_etype_ptr3();
 
 typedef struct _Kernel { char name; } *Kernel;
 
+// Double pointers
+typedef void **DVOIDPTR;
+typedef int **DINTPTR;
+
+struct dstruct {
+  int **field1;
+};
+
+typedef struct dstruct2 {
+  char **field1;
+  float **field2;
+	void **(*tcv)(int **param1);
+} DSTRUCT2;
+
 #ifdef __cplusplus
 }
 #endif

tests/tnimterop_c.nim

@@ -145,3 +145,19 @@ when false:
     doAssert foobar1(3) == OSDEF * 3
 when false: # Error: undeclared identifier: 'foobar2'
     doAssert foobar2(3) == 3 + 1
+
+# Double pointer
+var
+  dv: DVOIDPTR
+  di: DINTPTR
+  ds: dstruct
+  cstr = "Hello".cstring
+  ds2: DSTRUCT2
+
+dv = addr vptr
+di = addr iptr
+
+ds.field1 = di
+ds2.field1 = addr cstr
+ds2.tcv = test_call10
+check ds2.tcv(di) == nil