From 26112352a774737e1ce5580c93654a26c1e82b39 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Mon, 24 Oct 2022 22:25:29 +0200 Subject: New upstream version 1.1 --- lib/stdckdint.in.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 lib/stdckdint.in.h (limited to 'lib/stdckdint.in.h') diff --git a/lib/stdckdint.in.h b/lib/stdckdint.in.h new file mode 100644 index 00000000..762d3fdb --- /dev/null +++ b/lib/stdckdint.in.h @@ -0,0 +1,35 @@ +/* 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 . */ + +#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 */ -- cgit v1.2.3