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-rw-r--r--lib/xsize.h50
1 files changed, 16 insertions, 34 deletions
diff --git a/lib/xsize.h b/lib/xsize.h
index b790597..0bfa4c8 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: