1 /* A C macro for declaring that specific arguments must not be NULL.
2 Copyright (C) 2009-2023 Free Software Foundation, Inc.
3
4 This program is free software: you can redistribute it and/or modify it
5 under the terms of the GNU Lesser General Public License as published
6 by the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
16
17 /* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
18 that the values passed as arguments n, ..., m must be non-NULL pointers.
19 n = 1 stands for the first argument, n = 2 for the second argument etc. */
20 #ifndef _GL_ARG_NONNULL
21 # if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || defined __clang__
22 # define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
23 # else
24 # define _GL_ARG_NONNULL(params)
25 # endif
26 #endif