Fixes for c++20

src/Type.h

@@ -446,6 +446,16 @@ struct Type {
         return type != other.type || (code() == Handle && !same_handle_type(other));
     }
 
+    /** Compare two types for equality */
+    bool operator==(const halide_type_t &other) const {
+        return type == other;
+    }
+
+    /** Compare two types for inequality */
+    bool operator!=(const halide_type_t &other) const {
+        return type != other;
+    }
+
     /** Compare ordering of two types so they can be used in certain containers and algorithms */
     bool operator<(const Type &other) const {
         if (type < other.type) {

src/runtime/HalideBuffer.h

@@ -130,7 +130,7 @@ struct DeviceRefCount {
 template<typename T = void, int D = 4>
 class Buffer {
     /** The underlying halide_buffer_t */
-    halide_buffer_t buf = {0};
+    halide_buffer_t buf = {};
 
     /** Some in-class storage for shape of the dimensions. */
     halide_dimension_t shape[D];