/* stdckdint.h -- checked integer arithmetic Copyright 2022-2024 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
