polara50 and polarb50 now consistently return bool, not int.

MSVC complains about constructions such as

    bool polara50(int);
    int polara50(cell *c) {
        // ...
        return polara50(someint);
    }

bigstuff.cpp

@@ -199,7 +199,7 @@ heptagon *createAlternateMap(cell *c, int rad, hstate firststate, int special) {
     cell *c = bf.at;
     
     if(cdist50(c) != 0) return NULL;
-    if(polarb50(c) != 1) return NULL;
+    if(!polarb50(c)) return NULL;
     }
   
   heptagon *alt = tailored_alloc<heptagon> (S7);

hyper.h

@@ -2734,7 +2734,7 @@ cell *createMovR(cell *c, int d);
 
 bool ishept(cell *c);
 int cdist50(cell *c);
-int polarb50(cell *c);
+bool polarb50(cell *c);
 
 bool isGravityLand(eLand l);
 bool isWarped(eLand l);
@@ -2952,7 +2952,7 @@ void sdltogl(SDL_Surface *txt, struct glfont_t& f, int ch);
 void showStartMenu();
 
 bool polara50(int x);
-int polara50(cell *c);
+bool polara50(cell *c);
 int fiftyval049(cell *c);
 
 namespace fieldpattern {

landgen.cpp

@@ -211,7 +211,7 @@ void giantLandSwitch(cell *c, int d, cell *from) {
 
         if(d == 9) {
           cell *c2 = NONSTDVAR ? c->master->c7 : c;
-          if(cdist50(c2) == 3 && polarb50(c2) == 1)
+          if(cdist50(c2) == 3 && polarb50(c2))
             c->wall = waPalace;
           }
       
@@ -272,12 +272,12 @@ void giantLandSwitch(cell *c, int d, cell *from) {
                 break;
               }
             }
-          else if(cdist50(c) == 3 && polarb50(c) == 1 && !ishept(c)) {
+          else if(cdist50(c) == 3 && polarb50(c) && !ishept(c)) {
             if(GOLDBERG) ; 
             else {
               int q = 0, s = 0;
               if(!ishept(c)) for(int i=0; i<c->type; i++)
-                if(cdist50(c->move(i)) == 3 && polarb50(c->move(i)) == 1 && !ishept(c->move(i)))
+                if(cdist50(c->move(i)) == 3 && polarb50(c->move(i)) && !ishept(c->move(i)))
                   q++, s += i;
               if(q == 1 && c->move(s)->land == laPalace) {
                 switch(princess::generating ? 0 : hrand(2)) {

pattern2.cpp

@@ -138,19 +138,19 @@ int land50(cell *c) {
     }
   }
 
-int polara50(cell *c) {
+bool polara50(cell *c) {
-  if(sphere || euclid || S7>7 || S6>6) return 0;
+  if(sphere || euclid || S7>7 || S6>6) return false;
   else if(NONSTDVAR) return polara50(fiftyval(c->master->c7));
   else if(ctof(c)) return polara50(fiftyval(c));
   else {
     auto ar = gp::get_masters(c);
     for(int i=0; i<3; i++)
       if(cdist50(ar[i]->fiftyval) < 3) return polara50(ar[i]->fiftyval);
-    return 0;
+    return false;
     }
   }
 
-int polarb50(cell *c) {
+bool polarb50(cell *c) {
   if(euclid) return true;
   if(sphere || euclid || S7>7 || S6>6) return true;
   else if(NONSTDVAR) return polarb50(fiftyval(c->master->c7));
@@ -159,7 +159,7 @@ int polarb50(cell *c) {
     auto ar = gp::get_masters(c);
     for(int i=0; i<3; i++)
       if(cdist50(ar[i]->fiftyval) < 3) return polarb50(ar[i]->fiftyval);
-    return 0;
+    return false;
     }
   }
 
@@ -189,7 +189,8 @@ int fiftyval049(cell *c) {
   else if(sphere) return 0;
   else {
     int a[3], qa=0;
-    int pa = polara50(c), pb = polarb50(c);
+    bool pa = polara50(c);
+    bool pb = polarb50(c);
     auto ar = gp::get_masters(c);
     for(int i=0; i<3; i++)
       if(polara50(ar[i]->fiftyval) == pa && polarb50(ar[i]->fiftyval) == pb)
@@ -2089,7 +2090,7 @@ namespace linepatterns {
         break;
       
       case patPalace: {
-        int a = polarb50(c);
+        bool a = polarb50(c);
         if(pseudohept(c)) for(int i=0; i<7; i++) {
             cell *c1 = createMov(c, (i+3) % 7);
             cell *c2 = createMov(c, (i+4) % 7);