Imported Upstream version 1.5.7

[platform/upstream/libpipeline.git] / gl / lib / xsize.h

diff --git a/gnulib/lib/xsize.h b/gl/lib/xsize.h
similarity index 71%
rename from gnulib/lib/xsize.h
rename to gl/lib/xsize.h
index 515327e..0bfa4c8 100644 (file)
--- a/gnulib/lib/xsize.h
+++ b/gl/lib/xsize.h
@@ -1,19 +1,19 @@
 /* xsize.h -- Checked size_t computations.
 
-   Copyright (C) 2003, 2008-2012 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 the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
+   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.
 
-   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 <http://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
@@ -27,6 +27,17 @@
 # include <stdint.h>
 #endif
 
+/* Get ATTRIBUTE_PURE.  */
+#include "attribute.h"
+
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
+_GL_INLINE_HEADER_BEGIN
+#ifndef XSIZE_INLINE
+# define XSIZE_INLINE _GL_INLINE
+#endif
+
 /* The size of memory objects is often computed through expressions of
    type size_t. Example:
       void* p = malloc (header_size + n * element_size).
@@ -48,10 +59,7 @@
   ((N) <= SIZE_MAX ? (size_t) (N) : SIZE_MAX)
 
 /* Sum of two sizes, with overflow check.  */
-static 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;
@@ -59,30 +67,21 @@ xsum (size_t size1, size_t size2)
 }
 
 /* Sum of three sizes, with overflow check.  */
-static 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.  */
-static 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.  */
-static 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:
@@ -92,7 +91,7 @@ xmax (size_t size1, size_t size2)
 
 /* Multiplication of a count with an element size, with overflow check.
    The count must be >= 0 and the element size must be > 0.
-   This is a macro, not an inline function, so that it works correctly even
+   This is a macro, not a function, so that it works correctly even
    when N is of a wider type and N > SIZE_MAX.  */
 #define xtimes(N, ELSIZE) \
   ((N) <= SIZE_MAX / (ELSIZE) ? (size_t) (N) * (ELSIZE) : SIZE_MAX)
@@ -104,4 +103,6 @@ xmax (size_t size1, size_t size2)
 #define size_in_bounds_p(SIZE) \
   ((SIZE) != SIZE_MAX)
 
+_GL_INLINE_HEADER_END
+
 #endif /* _XSIZE_H */