cmDspProc4.h/c : Added 'decl' entry type to scMod.

cmProc4.c

@@ -2693,6 +2693,7 @@ typedef struct
 
 _cmScModTypeMap_t _cmScModTypeArray[] =
 {
+  { kDeclModTId,    0, "decl" },
   { kSetModTId,     1, "set" },
   { kLineModTId,    2, "line" },
   { kSetLineModTId, 3, "sline" },
@@ -3164,6 +3165,7 @@ cmRC_t _cmScModActivate(cmScModulator* p, cmScModEntry_t* ep )
 
   switch( ep->typeId )
   {
+    case kDeclModTId:
     case kSetModTId:
       break;
 
@@ -3220,6 +3222,11 @@ bool  _cmScModExec( cmScModulator* p, cmScModVar_t* vp )
 
   switch( vp->entry->typeId )
   {
+    case kDeclModTId:
+      sendFl = false;
+      fl     = true;
+      break;
+      
     case kSetModTId:
       {
         if((rc = _cmScModGetParam(p,&vp->entry->beg,&vp->value)) != cmOkRC )

cmProc4.h

@@ -421,6 +421,7 @@ extern "C" {
   enum
   {
     kInvalidModTId,
+    kDeclModTId,     // declare a variable but do not associate a value with it (allows a variable to be connected to w/o sending a value) 
     kSetModTId,      // set variable to parray[0] at scLocIdx
     kLineModTId,     // linear ramp variable to parray[0] over parray[1] seconds
     kSetLineModTId,  // set variable to parray[0] and ramp to parray[1] over parray[2] seconds