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-rw-r--r--lib/libc/stdlib/malloc.39
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/libc/stdlib/malloc.3 b/lib/libc/stdlib/malloc.3
index 764bad1033de..f4e75e2f748f 100644
--- a/lib/libc/stdlib/malloc.3
+++ b/lib/libc/stdlib/malloc.3
@@ -264,7 +264,10 @@ The
and
.Fn calloc
functions return a pointer to the allocated memory if successful; otherwise
-a NULL pointer is returned.
+a NULL pointer is returned and
+.Va errno
+is set to
+.Er ENOMEM .
.Pp
The
.Fn realloc
@@ -277,6 +280,10 @@ if successful; otherwise a NULL pointer is returned, in which case the
memory referenced by
.Fa ptr
is still available and intact.
+In the case of memory allocation failure,
+.Va errno
+is set to
+.Er ENOMEM .
.Pp
The
.Fn free