True of bionic, glibc, and musl. (I didn't check elsewhere.) --- man3/posix_memalign.3 | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/man3/posix_memalign.3 b/man3/posix_memalign.3 index b4e355662..84b24303e 100644 --- a/man3/posix_memalign.3 +++ b/man3/posix_memalign.3 @@ -144,7 +144,9 @@ For all of these functions, the memory is not zeroed. .BR valloc (), and .BR pvalloc () -return a pointer to the allocated memory, or NULL if the request fails. +return a pointer to the allocated memory on success. +On error, NULL is returned, and \fIerrno\fP is set +to indicate the cause of the error. .PP .BR posix_memalign () returns zero on success, or one of the error values listed in the -- 2.21.0.593.g511ec345e18-goog
