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authorJörg Frings-Fürst <debian@jff.email>2022-10-24 22:25:29 +0200
committerJörg Frings-Fürst <debian@jff.email>2022-10-24 22:25:29 +0200
commit26112352a774737e1ce5580c93654a26c1e82b39 (patch)
treed64e2f5b6e7aa92fa9a8ffb8ae5df75310532714 /lib/stdckdint.in.h
parentbe8efac78d067c138ad8dda03df4336e73f94887 (diff)
New upstream version 1.1upstream/1.1upstream
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+/* stdckdint.h -- checked integer arithmetic
+
+ Copyright 2022 Free Software Foundation, Inc.
+
+ This program 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,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Lesser General Public License for more details.
+
+ 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 _GL_STDCKDINT_H
+#define _GL_STDCKDINT_H
+
+#include "intprops-internal.h"
+
+/* Store into *R the low-order bits of A + B, A - B, A * B, respectively.
+ Return 1 if the result overflows, 0 otherwise.
+ A, B, and *R can have any integer type other than char, bool, a
+ bit-precise integer type, or an enumeration type.
+
+ These are like the standard macros introduced in C23, except that
+ arguments should not have side effects. */
+
+#define ckd_add(r, a, b) ((bool) _GL_INT_ADD_WRAPV (a, b, r))
+#define ckd_sub(r, a, b) ((bool) _GL_INT_SUBTRACT_WRAPV (a, b, r))
+#define ckd_mul(r, a, b) ((bool) _GL_INT_MULTIPLY_WRAPV (a, b, r))
+
+#endif /* _GL_STDCKDINT_H */