Added a wrapper for U16toU8, called AUTOU16TOU8

- U16toU8 now requires a max arument to be passed

src/core/CNStructs.hpp

@@ -32,12 +32,16 @@
 #define MAPNUM(x) ((x) & 0xffffffff)
 #define PLAYERID(x) ((x) >> 32)
 
+// wrapper for U16toU8
+#define ARRLEN(x) (sizeof(x)/sizeof(*x))
+#define AUTOU16TOU8(x) U16toU8(x, ARRLEN(x)) 
+
 // typedef for chunk position tuple
 typedef std::tuple<int, int, uint64_t> ChunkPos;
 
 // TODO: rewrite U16toU8 & U8toU16 to not use codecvt
 
-std::string U16toU8(char16_t* src);
+std::string U16toU8(char16_t* src, size_t max);
 size_t U8toU16(std::string src, char16_t* des, size_t max); // returns number of char16_t that was written at des
 time_t getTime();
 time_t getTimestamp();