diff options
| -rw-r--r-- | man3/malloc.3 | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/man3/malloc.3 b/man3/malloc.3 index c3b688ab31..e0f5250ff7 100644 --- a/man3/malloc.3 +++ b/man3/malloc.3 @@ -216,9 +216,12 @@ function returns no value. The .BR realloc () function returns a pointer to the newly allocated memory, which is suitably -aligned for any built-in type and may be different from -.IR ptr , -or NULL if the request fails. +aligned for any built-in type, or NULL if the request failed. +The pointer may be the same as +.IR ptr +if the allocation was not moved (e.g. there was room to expand the allocation in-place), or different from +.IR ptr +if the allocation was moved to a new address. If .I size was equal to 0, either NULL or a pointer suitable to be passed to |