FORB: fix conversion warnings

Author: dorian3d

src/FORB.cpp

@@ -97,7 +97,7 @@ double FORB::distance(const FORB::TDescriptor &a,
       (sizeof(uint64_t) - 1) * CHAR_BIT;
   }
 
-  return ret;
+  return static_cast<double>(ret);
 
   // // If uint64_t is not defined in your system, you can try this 
   // // portable approach (requires DUtils from DLib)
@@ -171,14 +171,14 @@ void FORB::toMat32F(const std::vector<TDescriptor> &descriptors,
 
     for(int j = 0; j < C; ++j, p += 8)
     {
-      p[0] = (desc[j] & (1 << 7) ? 1 : 0);
-      p[1] = (desc[j] & (1 << 6) ? 1 : 0);
-      p[2] = (desc[j] & (1 << 5) ? 1 : 0);
-      p[3] = (desc[j] & (1 << 4) ? 1 : 0);
-      p[4] = (desc[j] & (1 << 3) ? 1 : 0);
-      p[5] = (desc[j] & (1 << 2) ? 1 : 0);
-      p[6] = (desc[j] & (1 << 1) ? 1 : 0);
-      p[7] = desc[j] & (1);
+      p[0] = (desc[j] & (1 << 7) ? 1.f : 0.f);
+      p[1] = (desc[j] & (1 << 6) ? 1.f : 0.f);
+      p[2] = (desc[j] & (1 << 5) ? 1.f : 0.f);
+      p[3] = (desc[j] & (1 << 4) ? 1.f : 0.f);
+      p[4] = (desc[j] & (1 << 3) ? 1.f : 0.f);
+      p[5] = (desc[j] & (1 << 2) ? 1.f : 0.f);
+      p[6] = (desc[j] & (1 << 1) ? 1.f : 0.f);
+      p[7] = (desc[j] & (1)      ? 1.f : 0.f);
     }
   } 
 }