rename some uint types to u32/u64

src/util.h

@@ -4,6 +4,8 @@
 
 #include <cassert>
 #include <cstring>
+#include <cstdio>
+#include <cstdlib>
 
 #include "types.h"
 
@@ -30,7 +32,7 @@ struct MemoryArena
 MemoryArena* arenaInit(size_t initial_size = DEFAULT_ARENA_SIZE);
 
 void arenaFree(MemoryArena*& arena);
-uint arenaGetFreeSize(MemoryArena* arena);
+u32 arenaGetFreeSize(MemoryArena* arena);
 
 #define ARENA_ALLOC(arena, type, count) \
 	(type*) arenaAllocateBlock(arena, sizeof(type) * count)
@@ -54,8 +56,8 @@ void utilSafeFree(void* p);
 //-----------------
 // Hashing
 
-uint64_t
-utilFNV64a_str(const char* str, uint64_t hval)
+u64
+utilFNV64a_str(const char* str, u64 hval)
 {
 	unsigned char* s = (unsigned char *)str; // unsigned string
 
@@ -76,7 +78,7 @@ utilFNV64a_str(const char* str, uint64_t hval)
 MemoryArena*
 arenaInit(size_t initial_size)
 {
-	uint sz = sizeof(MemoryArena);
+	u32 sz = sizeof(MemoryArena);
 	MemoryArena* arena =
 		(MemoryArena*) std::calloc(initial_size + sz, sizeof(u8));
 	arena->head = arena->next_free = (uint8_t*) arena + sz;