[C++] Fix test-io build (untested)

Makefile

@@ -118,16 +118,17 @@ test:
 	done
 test-io:
 	mkdir -p bin
-	$(CC) \
+	$(CXX) \
+	-std=c++20 \
 	-DDATA_DIR= \
 	-o bin/test-io \
-		t/test-io.c \
-		src/keyboard.c \
-		src/string.c \
-		src/macro.c \
-		src/config.c \
-		src/log.c \
-		src/ini.c \
-		src/keys.c  \
+		t/test-io.cpp \
+		src/keyboard.cpp \
+		src/string.cpp \
+		src/macro.cpp \
+		src/config.cpp \
+		src/log.cpp \
+		src/ini.cpp \
+		src/keys.cpp  \
 		src/unicode.c && \
 	./bin/test-io t/test.conf t/*.t

t/test-io.c → t/test-io.cpp

@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <time.h>
 #include "../src/keyd.h"
+#include <memory>
 
 #define MAX_EVENTS 1024
 
@@ -243,7 +244,7 @@ int main(int argc, char *argv[])
 	struct config config;
 	uint64_t total_time;
 
-	struct keyboard *kbd;
+	std::unique_ptr<struct keyboard> kbd;
 
 	struct output output = {
 		.send_key = send_key,
@@ -265,7 +266,7 @@ int main(int argc, char *argv[])
 	kbd = new_keyboard(&config, &output);
 
 	for (i = 2; i < argc; i++)
-		total_time += run_test(kbd, argv[i]);
+		total_time += run_test(kbd.get(), argv[i]);
 
 	printf("\nTotal time spent in the main loop: %zu us\n", total_time/1000);
 	return 0;