Delegate now uses function declaration syntax in template type specification

Author: dok-net

cores/esp8266/core_esp8266_main.cpp

@@ -153,7 +153,7 @@ extern "C" void __esp_delay(unsigned long ms) {
 
 extern "C" void esp_delay(unsigned long ms) __attribute__((weak, alias("__esp_delay")));
 
-using IsBlockedCB = Delegate<bool, void*>;
+using IsBlockedCB = Delegate<bool(void*), void*>;
 
 void esp_delay(const uint32_t timeout_ms, const IsBlockedCB& blocked, const uint32_t intvl_ms) {
     const auto start = millis();

cores/esp8266/coredecls.h

@@ -31,13 +31,13 @@ uint32_t crc32 (const void* data, size_t length, uint32_t crc = 0xffffffff);
 #include <Delegate.h>
 
 using BoolCB = Delegate<void(bool)>;
-using TrivialCB = Delegate<>;
+using TrivialCB = Delegate<void()>;
 
 void settimeofday_cb (BoolCB&& cb);
 void settimeofday_cb (const BoolCB& cb);
 void settimeofday_cb (const TrivialCB& cb);
 
-using IsBlockedCB = Delegate<bool, void*>;
+using IsBlockedCB = Delegate<bool(void*), void*>;
 
 inline void esp_yield(const IsBlockedCB& blocked) {
     do {