[Emacs-diffs] emacs-26 a87ce5c: * src/lisp.h (GCALIGNED): Clarify comment (Bug#29040).

[Paul Eggert]

branch: emacs-26
commit a87ce5c4b41ca8146c764b1186a6162c069b1933
Author: Paul Eggert <address@hidden>
Commit: Paul Eggert <address@hidden>

    * src/lisp.h (GCALIGNED): Clarify comment (Bug#29040).
---
 src/lisp.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/lisp.h b/src/lisp.h
index bf9db59..a71ba22 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -272,8 +272,9 @@ error !;
 #endif
 
 /* Declare an object to have an address that is a multiple of
-   GCALIGNMENT.  alignas is not suitable here, as it fails if the
-   object's natural alignment exceeds GCALIGNMENT.  */
+   GCALIGNMENT.  This is a no-op if the object's natural alignment is
+   already a multiple of GCALIGNMENT.  alignas is not suitable here,
+   as it fails if the object's natural alignment exceeds GCALIGNMENT.  */
 #ifdef HAVE_STRUCT_ATTRIBUTE_ALIGNED
 # define GCALIGNED __attribute__ ((aligned (GCALIGNMENT)))
 #else