Clean up unused parameter warnings

Author: tfry-git

EmbAJAX.h

@@ -87,6 +87,8 @@ class EmbAJAXBase {
      *  @returns true if anything has been written, false otherwise.
      */
     virtual bool sendUpdates(uint16_t since, bool first) {
+        UNUSED(since);
+        UNUSED(first);
         return false;
     }
     /** Cast this object to EmbAJAXElement if it is a controllable element.
@@ -114,11 +116,12 @@ class EmbAJAXBase {
     /** Find child element of this one, with the given id. Returns 0, if this is not a container, or
      *  does not have such a child. @see EmbAJAXContainer, and @see EmbAJAXHideableContainer. */
     virtual EmbAJAXElement* findChild(const char*id) const {
+        UNUSED(id);
         return 0;
     }
 protected:
 template<size_t NUM> friend class EmbAJAXContainer;
-    virtual void setBasicProperty(uint8_t num, bool status) {};
+    virtual void setBasicProperty(uint8_t num, bool status) { UNUSED(num); UNUSED(status); };
 
     static EmbAJAXOutputDriverBase *_driver;
     static char itoa_buf[8];
@@ -317,6 +320,7 @@ class EmbAJAXElement : public EmbAJAXBase {
     /** Returns true, if the value may contain HTML, and needs HTML escaping when passed to the client.
      *  Base implementation simply returns false. */
     virtual bool valueNeedsEscaping(uint8_t which = EmbAJAXBase::Value) const {
+        UNUSED(which);
         return false;
     }
 
@@ -332,6 +336,7 @@ class EmbAJAXElement : public EmbAJAXBase {
     /** override this in your derived class to allow updates to be propagated from client to server (if wanted).
      *  The implementation need not call setChanged(). */
     virtual void updateFromDriverArg(const char* argname) {
+        UNUSED(argname);
         return;
     }
 

docs/ChangeLog.md

@@ -1,4 +1,7 @@
--- Changes in version 0.2.0 -- UNRELEASED
+-- Changes in version 0.3.0 -- UNRELEASED
+X TODO: Fix EmbAJAXValidatingTextInput (did it ever work?)
+
+-- Changes in version 0.2.0 -- 2023-04-29
 * On Harvard-architecture MCUs, keep most static strings in flash memory, only. This can achieve
   massive RAM savings on some MCUs (none one others), at the cost of small performance hit
   (behavior can be customized using the USE_PROGMEM_STRINGS #define).
@@ -10,7 +13,5 @@
   The former is obsolete by the global limit, the latter had never been implemented.
 * EmbAJAXTextInputs are more responsive, and no longer prone to "swallowing" key presses.
 * Add demo on keeping track of active clients
-X TODO: Fix EmbAJAXValidatingTextInput (did it ever work?)
-X TODO: Rework hasActiveClient, again?
 
 -- Changes before version 0.1.1 have not been recorded --

macro_definitions.h

@@ -120,3 +120,7 @@
 #else
  #define printF_proxy(X, ...) _printContentF(X, __VA_ARGS__);
 #endif
+
+#ifndef UNUSED
+ #define UNUSED(X) (void)(sizeof(X))
+#endif