1 files changed, 12 insertions, 12 deletions

diff --git a/mfbt/EndianUtils.h b/mfbt/EndianUtils.h
index 719e048c12..1dce2bdc29 100644
--- a/mfbt/EndianUtils.h
+++ b/mfbt/EndianUtils.h
@@ -343,37 +343,37 @@ class Endian : private EndianUtils
 {
 protected:
   /** Read a uint16_t in ThisEndian endianness from |aPtr| and return it. */
-  static MOZ_MUST_USE uint16_t readUint16(const void* aPtr)
+  [[nodiscard]] static uint16_t readUint16(const void* aPtr)
   {
     return read<uint16_t>(aPtr);
   }
 
   /** Read a uint32_t in ThisEndian endianness from |aPtr| and return it. */
-  static MOZ_MUST_USE uint32_t readUint32(const void* aPtr)
+  [[nodiscard]] static uint32_t readUint32(const void* aPtr)
   {
     return read<uint32_t>(aPtr);
   }
 
   /** Read a uint64_t in ThisEndian endianness from |aPtr| and return it. */
-  static MOZ_MUST_USE uint64_t readUint64(const void* aPtr)
+  [[nodiscard]] static uint64_t readUint64(const void* aPtr)
   {
     return read<uint64_t>(aPtr);
   }
 
   /** Read an int16_t in ThisEndian endianness from |aPtr| and return it. */
-  static MOZ_MUST_USE int16_t readInt16(const void* aPtr)
+  [[nodiscard]] static int16_t readInt16(const void* aPtr)
   {
     return read<int16_t>(aPtr);
   }
 
   /** Read an int32_t in ThisEndian endianness from |aPtr| and return it. */
-  static MOZ_MUST_USE int32_t readInt32(const void* aPtr)
+  [[nodiscard]] static int32_t readInt32(const void* aPtr)
   {
     return read<uint32_t>(aPtr);
   }
 
   /** Read an int64_t in ThisEndian endianness from |aPtr| and return it. */
-  static MOZ_MUST_USE int64_t readInt64(const void* aPtr)
+  [[nodiscard]] static int64_t readInt64(const void* aPtr)
   {
     return read<int64_t>(aPtr);
   }
@@ -422,7 +422,7 @@ protected:
    * format for transmission.
    */
   template<typename T>
-  MOZ_MUST_USE static T swapToLittleEndian(T aValue)
+  [[nodiscard]] static T swapToLittleEndian(T aValue)
   {
     return maybeSwap<ThisEndian, Little>(aValue);
   }
@@ -452,7 +452,7 @@ protected:
    * Converts a value of type T to big-endian format.
    */
   template<typename T>
-  MOZ_MUST_USE static T swapToBigEndian(T aValue)
+  [[nodiscard]] static T swapToBigEndian(T aValue)
   {
     return maybeSwap<ThisEndian, Big>(aValue);
   }
@@ -484,7 +484,7 @@ protected:
    */
 
   template<typename T>
-  MOZ_MUST_USE static T swapToNetworkOrder(T aValue)
+  [[nodiscard]] static T swapToNetworkOrder(T aValue)
   {
     return swapToBigEndian(aValue);
   }
@@ -507,7 +507,7 @@ protected:
    * Converts a value of type T from little-endian format.
    */
   template<typename T>
-  MOZ_MUST_USE static T swapFromLittleEndian(T aValue)
+  [[nodiscard]] static T swapFromLittleEndian(T aValue)
   {
     return maybeSwap<Little, ThisEndian>(aValue);
   }
@@ -537,7 +537,7 @@ protected:
    * Converts a value of type T from big-endian format.
    */
   template<typename T>
-  MOZ_MUST_USE static T swapFromBigEndian(T aValue)
+  [[nodiscard]] static T swapFromBigEndian(T aValue)
   {
     return maybeSwap<Big, ThisEndian>(aValue);
   }
@@ -568,7 +568,7 @@ protected:
    * in network code.
    */
   template<typename T>
-  MOZ_MUST_USE static T swapFromNetworkOrder(T aValue)
+  [[nodiscard]] static T swapFromNetworkOrder(T aValue)
   {
     return swapFromBigEndian(aValue);
   }