2 files changed, 5 insertions, 5 deletions

diff --git a/mem/include/mem.h b/mem/include/mem.h
index 224b069..3050ba8 100644
--- a/mem/include/mem.h
+++ b/mem/include/mem.h
@@ -68,13 +68,13 @@
 /// Allocate a new chunk of N blocks.
 /// Return a pointer to the first block of the chunk.
 /// When there is no space left in the allocator, allocation can either trap
-/// (default) or gracefully return 0. Call mem_enable_traps() to toggle this
+/// (default) or gracefully return null. Call mem_enable_traps() to toggle this
 /// behaviour.
 /// New chunks are conveniently zeroed out.
 #define mem_alloc(MEM, num_blocks) mem_alloc_(&(MEM)->mem, num_blocks)
 
 /// Free the chunk.
-/// The chunk pointer is conveniently set to 0.
+/// The chunk pointer is conveniently set to null.
 #define mem_free(MEM, CHUNK) mem_free_(&(MEM)->mem, (void**)CHUNK)
 
 /// Return a pointer to a chunk given the chunk's handle.
diff --git a/mempool/include/mempool.h b/mempool/include/mempool.h
index 04d0313..0de7ac6 100644
--- a/mempool/include/mempool.h
+++ b/mempool/include/mempool.h
@@ -64,15 +64,15 @@
 #define mempool_clear(POOL) mempool_clear_(&(POOL)->pool)
 
 /// Allocate a new block.
-/// Return 0 if there is no memory left.
+/// Return null if there is no memory left.
 /// When there is no space left in the pool, allocation can either trap
-/// (default) or gracefully return 0. Call mem_enable_traps() to toggle this
+/// (default) or gracefully return null. Call mem_enable_traps() to toggle this
 /// behaviour.
 /// New blocks are conveniently zeroed out.
 #define mempool_alloc(POOL) mempool_alloc_(&(POOL)->pool)
 
 /// Free the block.
-/// The block pointer is conveniently set to 0.
+/// The block pointer is conveniently set to null.
 #define mempool_free(POOL, BLOCK_PTR) \
   assert(*BLOCK_PTR);                 \
   mempool_free_(&(POOL)->pool, (void**)BLOCK_PTR)