Examples: Vulkan: Fixed warnings. (#2480)
diff --git a/examples/example_glfw_vulkan/main.cpp b/examples/example_glfw_vulkan/main.cpp
index 43abd3e..e0c062a 100644
--- a/examples/example_glfw_vulkan/main.cpp
+++ b/examples/example_glfw_vulkan/main.cpp
@@ -108,6 +108,7 @@
         // Create Vulkan Instance without any debug feature
         err = vkCreateInstance(&create_info, g_Allocator, &g_Instance);
         check_vk_result(err);
+        IM_UNUSED(g_DebugReport);
 #endif
     }
 
@@ -142,7 +143,7 @@
                 break;
             }
         free(queues);
-        IM_ASSERT(g_QueueFamily != -1);
+        IM_ASSERT(g_QueueFamily != (uint32_t)-1);
     }
 
     // Create Logical Device (with 1 queue)
diff --git a/examples/example_sdl_vulkan/main.cpp b/examples/example_sdl_vulkan/main.cpp
index ad78946..812d098 100644
--- a/examples/example_sdl_vulkan/main.cpp
+++ b/examples/example_sdl_vulkan/main.cpp
@@ -100,6 +100,7 @@
         // Create Vulkan Instance without any debug feature
         err = vkCreateInstance(&create_info, g_Allocator, &g_Instance);
         check_vk_result(err);
+        IM_UNUSED(g_DebugReport);
 #endif
     }
 
@@ -134,7 +135,7 @@
                 break;
             }
         free(queues);
-        IM_ASSERT(g_QueueFamily != -1);
+        IM_ASSERT(g_QueueFamily != (uint32_t)-1);
     }
 
     // Create Logical Device (with 1 queue)