fix compilation warnings

Author: soheilshahrouz

libs/libvtrutil/src/vtr_assert.h

@@ -103,7 +103,7 @@
  *
  * Note that to avoid 'unused' variable warnings when assertions are
  * disabled, we pass the expr and msg to sizeof(). We use sizeof specifically
- * since it accepts expressions, and the C++ standard gaurentees sizeof's arguments
+ * since it accepts expressions, and the C++ standard guarantees sizeof's arguments
  * are never evaluated (ensuring any expensive expressions are not evaluated when
  * assertions are disabled). To avoid warnings about the unused result of sizeof()
  * we cast it to void.
@@ -142,7 +142,7 @@ namespace assert {
  * function will never return. This should ensure the
  * compiler won't warn about detected conditions such as
  * dead-code or potential null pointer dereferences
- * which are gaurded against by assertions.
+ * which are guarded against by assertions.
  */
 [[noreturn]] void handle_assert(const char* expr, const char* file, unsigned int line, const char* function, const char* msg);
 } // namespace assert

vpr/src/place/net_cost_handler.cpp

@@ -1431,7 +1431,7 @@ double NetCostHandler::get_net_wirelength_from_layer_bb_(ClusterNetId net_id) co
     const vtr::NdMatrixProxy<int, 1> net_layer_pin_sink_count = num_sink_pin_layer_[size_t(net_id)];
 
     double ncost = 0.;
-    VTR_ASSERT_SAFE(bb.size() == g_vpr_ctx.device().grid.get_num_layers());
+    VTR_ASSERT_SAFE((int)bb.size() == g_vpr_ctx.device().grid.get_num_layers());
 
     for (size_t layer_num = 0; layer_num < bb.size(); layer_num++) {
         VTR_ASSERT_SAFE(net_layer_pin_sink_count[layer_num] != OPEN);