Fix memory leak in LinearAllocator used by Sample_TempObstacles

Author: Sandern

RecastDemo/Source/Sample_TempObstacles.cpp

@@ -132,11 +132,11 @@ struct FastLZCompressor : public dtTileCacheCompressor
 struct LinearAllocator : public dtTileCacheAlloc
 {
 	unsigned char* buffer;
-	int capacity;
-	int top;
-	int high;
+	size_t capacity;
+	size_t top;
+	size_t high;
 
-	LinearAllocator(const int cap) : buffer(0), capacity(0), top(0), high(0)
+	LinearAllocator(const size_t cap) : buffer(0), capacity(0), top(0), high(0)
 	{
 		resize(cap);
 	}
@@ -146,7 +146,7 @@ struct LinearAllocator : public dtTileCacheAlloc
 		dtFree(buffer);
 	}
 
-	void resize(const int cap)
+	void resize(const size_t cap)
 	{
 		if (buffer) dtFree(buffer);
 		buffer = (unsigned char*)dtAlloc(cap, DT_ALLOC_PERM);
@@ -159,7 +159,7 @@ struct LinearAllocator : public dtTileCacheAlloc
 		top = 0;
 	}
 
-	virtual void* alloc(const int size)
+	virtual void* alloc(const size_t size)
 	{
 		if (!buffer)
 			return 0;