Make use of C++ array wrapper

eink/eink.cppproj

@@ -257,6 +257,9 @@
     <Compile Include="uart\uart.hpp">
       <SubType>compile</SubType>
     </Compile>
+    <Compile Include="util\array.hpp">
+      <SubType>compile</SubType>
+    </Compile>
     <Compile Include="util\func.hpp">
       <SubType>compile</SubType>
     </Compile>

eink/main.cpp

@@ -1,18 +1,18 @@
 #include "clock.hpp"
 
+#include "eink/eink.hpp"
 #include "flash/flash.hpp"
 #include "io/io.hpp"
 #include "spi/spi.hpp"
 #include "uart/uart.hpp"
-
-#include "eink/eink.hpp"
+#include "util/array.hpp"
 
 using uart_t = uart::Uart0<>;
 REGISTER_UART0_INT_VECTORS(uart_t);
 
 //////////////////////////////////////////////////////////////////////////
 
-const uint8_t IMAGE[] PROGMEM = {
+constexpr auto IMAGE [[gnu::progmem]] = util::to_array<uint8_t>({
     0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x85, 0x79, 0x79, 0x79, 0x79, 0x79,
     0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79,
     0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x85, 0x79, 0x79, 0x79,
@@ -435,7 +435,7 @@ const uint8_t IMAGE[] PROGMEM = {
     0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79,
     0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79, 0x79,
     0x79,
-};
+});
 
 //////////////////////////////////////////////////////////////////////////