Merge branch 'feature/upstream' into develop

1 files changed, 16 insertions, 34 deletions

diff --git a/lib/xsize.h b/lib/xsize.h
index b790597d..0bfa4c88 100644
--- a/lib/xsize.h
+++ b/lib/xsize.h
@@ -1,28 +1,19 @@
 /* xsize.h -- Checked size_t computations.
 
-   Copyright (C) 2003, 2008-2018 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2008-2022 Free Software Foundation, Inc.
 
-   This program is free software: you can redistribute it and/or
-   modify it under the terms of either:
+   This file is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Lesser General Public License as
+   published by the Free Software Foundation; either version 2.1 of the
+   License, or (at your option) any later version.
 
-     * the GNU Lesser General Public License as published by the Free
-       Software Foundation; either version 3 of the License, or (at your
-       option) any later version.
-
-   or
-
-     * the GNU General Public License as published by the Free
-       Software Foundation; either version 2 of the License, or (at your
-       option) any later version.
-
-   or both in parallel, as here.
-   This program is distributed in the hope that it will be useful,
+   This file is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
+   GNU Lesser General Public License for more details.
 
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, see <https://www.gnu.org/licenses/>.  */
+   You should have received a copy of the GNU Lesser General Public License
+   along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
 
 #ifndef _XSIZE_H
 #define _XSIZE_H
@@ -36,6 +27,9 @@
 # include <stdint.h>
 #endif
 
+/* Get ATTRIBUTE_PURE.  */
+#include "attribute.h"
+
 #ifndef _GL_INLINE_HEADER_BEGIN
  #error "Please include config.h first."
 #endif
@@ -65,10 +59,7 @@ _GL_INLINE_HEADER_BEGIN
   ((N) <= SIZE_MAX ? (size_t) (N) : SIZE_MAX)
 
 /* Sum of two sizes, with overflow check.  */
-XSIZE_INLINE size_t
-#if __GNUC__ >= 3
-__attribute__ ((__pure__))
-#endif
+XSIZE_INLINE size_t ATTRIBUTE_PURE
 xsum (size_t size1, size_t size2)
 {
   size_t sum = size1 + size2;
@@ -76,30 +67,21 @@ xsum (size_t size1, size_t size2)
 }
 
 /* Sum of three sizes, with overflow check.  */
-XSIZE_INLINE size_t
-#if __GNUC__ >= 3
-__attribute__ ((__pure__))
-#endif
+XSIZE_INLINE size_t ATTRIBUTE_PURE
 xsum3 (size_t size1, size_t size2, size_t size3)
 {
   return xsum (xsum (size1, size2), size3);
 }
 
 /* Sum of four sizes, with overflow check.  */
-XSIZE_INLINE size_t
-#if __GNUC__ >= 3
-__attribute__ ((__pure__))
-#endif
+XSIZE_INLINE size_t ATTRIBUTE_PURE
 xsum4 (size_t size1, size_t size2, size_t size3, size_t size4)
 {
   return xsum (xsum (xsum (size1, size2), size3), size4);
 }
 
 /* Maximum of two sizes, with overflow check.  */
-XSIZE_INLINE size_t
-#if __GNUC__ >= 3
-__attribute__ ((__pure__))
-#endif
+XSIZE_INLINE size_t ATTRIBUTE_PURE
 xmax (size_t size1, size_t size2)
 {
   /* No explicit check is needed here, because for any n: