diff --git a/flash/flash b/flash/flash
index 1bf2a07..b0f602b 160000
--- a/flash/flash
+++ b/flash/flash
@@ -1 +1 @@
-Subproject commit 1bf2a07bc31e8de852f308cadbf7f5269e6551c6
+Subproject commit b0f602b3be5608d71a401f5c75609f09e92df4a9
diff --git a/flash/main.cpp b/flash/main.cpp
index 291a1d9..8a7fc3b 100644
--- a/flash/main.cpp
+++ b/flash/main.cpp
@@ -1,6 +1,28 @@
+#include <stddef.h>
+
 #include "flash/flash.hpp"
 
+size_t getSize(const detail::FlashString *flashString)
+{
+	size_t size = 0;
+
+	while (true) {
+		char ch = pgm_read_byte(reinterpret_cast<const char *>(flashString) + size);
+
+		if (ch == '\0')
+			break;
+
+		++size;
+	}
+
+	return size;
+}
+
 int main()
 {
+	auto flashString = F("Hello World!");
+
+	getSize(flashString);
+
 	return 0;
 }