Clean up

lib/arena.c

@@ -114,7 +114,7 @@ void *arena_realloc(arena_t *arena, void *ptr, u64 oldsize, u64 newsize)
     // No need to change anything.
     return ptr;
 
-  bool copy_into_new = true;
+  bool copy_into_new = false;
   void *start        = NULL;
   page_t *old_page = NULL, *best_fit = NULL;
 
@@ -134,12 +134,9 @@ void *arena_realloc(arena_t *arena, void *ptr, u64 oldsize, u64 newsize)
   {
     start = ptr;
     old_page->size += newsize - oldsize;
-    copy_into_new = false;
   }
   else
   {
-    if (!old_page)
-      copy_into_new = false;
     if (!best_fit)
     {
       best_fit         = page_create(newsize);
@@ -149,6 +146,7 @@ void *arena_realloc(arena_t *arena, void *ptr, u64 oldsize, u64 newsize)
 
     start = best_fit->data + best_fit->size;
     best_fit->size += newsize;
+    copy_into_new = true;
   }
 
   if (copy_into_new)

lib/sv.h

@@ -27,6 +27,7 @@ typedef struct SV
 #define SV(DATA, SIZE) ((const sv_t){.size = (SIZE), .data = (DATA)})
 #define SV_FMT(SV)     (int)(SV).size, (SV).data
 #define PR_SV          "%.*s"
+#define PR_DEBUG_SV    "%d@%p"
 
 sv_t sv_make(arena_t *allocator, const char *data, u64 size);
 sv_t sv_copy(arena_t *allocator, sv_t sv);