3 files changed, 6 insertions, 6 deletions
diff --git a/src/support/archive.h b/src/support/archive.h
index 95af1ac94..0ca066ff1 100644
--- a/src/support/archive.h
+++ b/src/support/archive.h
@@ -71,7 +71,7 @@ class Archive {
     Child child;
     bool error = false;  // TODO: use std::error_code instead?
    public:
-    child_iterator() {}
+    child_iterator() = default;
     explicit child_iterator(bool error) : error(error) {}
     child_iterator(const Child& c) : child(c) {}
     const Child* operator->() const { return &child; }
diff --git a/src/support/json.h b/src/support/json.h
index 034cdc9b9..7ffa1211f 100644
--- a/src/support/json.h
+++ b/src/support/json.h
@@ -47,7 +47,7 @@ typedef cashew::IString IString;
 // Main value type
 struct Value {
   struct Ref : public std::shared_ptr<Value> {
-    Ref() : std::shared_ptr<Value>() {}
+    Ref() = default;
     Ref(Value* value) : std::shared_ptr<Value>(value) {}
 
     Ref& operator[](size_t x) {
@@ -67,7 +67,7 @@ struct Value {
     Object = 5,
   };
 
-  Type type;
+  Type type = Null;
 
   typedef std::vector<Ref> ArrayStorage;
   typedef std::unordered_map<IString, Ref> ObjectStorage;
@@ -79,7 +79,7 @@ struct Value {
 #ifndef _MSC_VER
     IString str;
 #endif
-    double num;
+    double num = 0;
     ArrayStorage *arr; // manually allocated/freed
     bool boo;
     ObjectStorage *obj; // manually allocated/freed
@@ -87,7 +87,7 @@ struct Value {
   };
 
   // constructors all copy their input
-  Value() : type(Null), num(0) {}
+  Value() {}
   explicit Value(const char *s) : type(Null) {
     setString(s);
   }
diff --git a/src/support/sorted_vector.h b/src/support/sorted_vector.h
index 8f33de03a..da991ce78 100644
--- a/src/support/sorted_vector.h
+++ b/src/support/sorted_vector.h
@@ -26,7 +26,7 @@
 namespace wasm {
 
 struct SortedVector : public std::vector<Index> {
-  SortedVector() {}
+  SortedVector() = default;
 
   SortedVector merge(const SortedVector& other) const {
     SortedVector ret;