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1 /* A C macro for declaring that specific arguments must not be NULL.
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2 Copyright (C) 2009, 2010 Free Software Foundation, Inc.
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3
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4 This program is free software: you can redistribute it and/or modify it
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5 under the terms of the GNU General Public License as published
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6 by the Free Software Foundation; either version 3 of the License, or
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7 (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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12 Lesser General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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16
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17 /* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
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18 that the values passed as arguments n, ..., m must be non-NULL pointers.
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19 n = 1 stands for the first argument, n = 2 for the second argument etc. */
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20 #ifndef _GL_ARG_NONNULL
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21 # if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3
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22 # define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
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23 # else
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24 # define _GL_ARG_NONNULL(params)
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25 # endif
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26 #endif
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