prevent crash upon 'reset' (MS Windows only)

ChangeLog

@@ -1,5 +1,7 @@
 2012-01-28  Holger Vogt
  * configure.ac, compile_min.sh: prepare for release 24
+ * mifdelete.c: prevent crash upon 'reset', if codemodel is an array
+   FIXME: leads to small memory leak
 
 2012-01-27  Holger Vogt
  * NEWS, INSTALL, tests\bin\ngspice.pm, /visualc/include/ngspice/config.h:

src/xspice/mif/mifdelete.c

@@ -48,7 +48,7 @@ NON-STANDARD FEATURES
 
 #include "ngspice/suffix.h"
 
-
+#include "ngspice/devdefs.h"
 
 /*
 MIFdelete
@@ -172,6 +172,14 @@ MIFdelete(
     num_inst_var = here->num_inst_var;
     for(i = 0; i < num_inst_var; i++) {
         if(here->inst_var[i]->element != NULL) {
+    /* Do not delete inst_var[i]->element if MS Windows and is_array==1.
+       Memory is then allocated in the code model dll, and it cannot be
+       guaranteed that it can be freed safely here! A small memory leak is created.
+       FIXME
+       Finally one has to free the memory in the same module where allocated. */
+#if defined(_MSC_VER) || defined(__MINGW32__)
+            if(!DEVices[here->MIFmodPtr->MIFmodType]->DEVpublic.inst_var[i].is_array)
+#endif
                 FREE(here->inst_var[i]->element);
         }
         FREE(here->inst_var[i]);