Replace boost::optional with std::optional where possible

src/input_common/udp/client.h

@@ -4,13 +4,14 @@
 
 #pragma once
 
+#include <functional>
 #include <memory>
 #include <mutex>
+#include <optional>
 #include <string>
 #include <thread>
 #include <tuple>
 #include <vector>
-#include <boost/optional.hpp>
 #include "common/common_types.h"
 #include "common/thread.h"
 #include "common/vector_math.h"
@@ -40,7 +41,7 @@ struct DeviceStatus {
         u16 max_x;
         u16 max_y;
     };
-    boost::optional<CalibrationData> touch_calibration;
+    std::optional<CalibrationData> touch_calibration;
 };
 
 class Client {

src/input_common/udp/protocol.cpp

@@ -29,24 +29,24 @@ namespace Response {
  * Note: Modifies the buffer to zero out the crc (since thats the easiest way to check without
  * copying the buffer)
  */
-boost::optional<Type> Validate(u8* data, std::size_t size) {
+std::optional<Type> Validate(u8* data, std::size_t size) {
     if (size < sizeof(Header)) {
         LOG_DEBUG(Input, "Invalid UDP packet received");
-        return boost::none;
+        return {};
     }
     Header header;
     std::memcpy(&header, data, sizeof(Header));
     if (header.magic != SERVER_MAGIC) {
         LOG_ERROR(Input, "UDP Packet has an unexpected magic value");
-        return boost::none;
+        return {};
     }
     if (header.protocol_version != PROTOCOL_VERSION) {
         LOG_ERROR(Input, "UDP Packet protocol mismatch");
-        return boost::none;
+        return {};
     }
     if (header.type < Type::Version || header.type > Type::PadData) {
         LOG_ERROR(Input, "UDP Packet is an unknown type");
-        return boost::none;
+        return {};
     }
 
     // Packet size must equal sizeof(Header) + sizeof(Data)
@@ -59,7 +59,7 @@ boost::optional<Type> Validate(u8* data, std::size_t size) {
             Input,
             "UDP Packet payload length doesn't match. Received: {} PayloadLength: {} Expected: {}",
             size, header.payload_length, data_len + sizeof(Type));
-        return boost::none;
+        return {};
     }
 
     const u32 crc32 = header.crc;
@@ -70,7 +70,7 @@ boost::optional<Type> Validate(u8* data, std::size_t size) {
     result.process_bytes(data, data_len + sizeof(Header));
     if (crc32 != result.checksum()) {
         LOG_ERROR(Input, "UDP Packet CRC check failed. Offset: {}", offsetof(Header, crc));
-        return boost::none;
+        return {};
     }
     return header.type;
 }

src/input_common/udp/protocol.h

@@ -5,10 +5,10 @@
 #pragma once
 
 #include <array>
+#include <optional>
 #include <type_traits>
 #include <vector>
 #include <boost/crc.hpp>
-#include <boost/optional.hpp>
 #include "common/bit_field.h"
 #include "common/swap.h"
 
@@ -218,7 +218,7 @@ static_assert(sizeof(Message<PadData>) == MAX_PACKET_SIZE,
  * @return boost::none if it failed to parse or Type if it succeeded. The client can then safely
  * copy the data into the appropriate struct for that Type
  */
-boost::optional<Type> Validate(u8* data, std::size_t size);
+std::optional<Type> Validate(u8* data, std::size_t size);
 
 } // namespace Response
 

src/input_common/udp/udp.cpp

@@ -42,7 +42,7 @@ public:
     std::unique_ptr<Input::TouchDevice> Create(const Common::ParamPackage& params) override {
         {
             std::lock_guard<std::mutex> guard(status->update_mutex);
-            status->touch_calibration.reset({});
+            status->touch_calibration.reset();
             // These default values work well for DS4 but probably not other touch inputs
             status->touch_calibration->min_x = params.Get("min_x", 100);
             status->touch_calibration->min_y = params.Get("min_y", 50);