compat_calloc.h (2936B)
1 /* SPDX-License-Identifier: LGPL-2.1-or-later OR (GPL-2.0-or-later WITH eCos-exception-2.0) */ 2 /* 3 This file is part of GNU libmicrohttpd. 4 Copyright (C) 2024 Evgeny Grin (Karlson2k) 5 6 GNU libmicrohttpd is free software; you can redistribute it and/or 7 modify it under the terms of the GNU Lesser General Public 8 License as published by the Free Software Foundation; either 9 version 2.1 of the License, or (at your option) any later version. 10 11 GNU libmicrohttpd is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 Lesser General Public License for more details. 15 16 Alternatively, you can redistribute GNU libmicrohttpd and/or 17 modify it under the terms of the GNU General Public License as 18 published by the Free Software Foundation; either version 2 of 19 the License, or (at your option) any later version, together 20 with the eCos exception, as follows: 21 22 As a special exception, if other files instantiate templates or 23 use macros or inline functions from this file, or you compile this 24 file and link it with other works to produce a work based on this 25 file, this file does not by itself cause the resulting work to be 26 covered by the GNU General Public License. However the source code 27 for this file must still be made available in accordance with 28 section (3) of the GNU General Public License v2. 29 30 This exception does not invalidate any other reasons why a work 31 based on this file might be covered by the GNU General Public 32 License. 33 34 You should have received copies of the GNU Lesser General Public 35 License and the GNU General Public License along with this library; 36 if not, see <https://www.gnu.org/licenses/>. 37 */ 38 39 /** 40 * @file src/mhd2/compat_calloc.h 41 * @brief The header for the calloc() or the calloc() replacement declarations 42 * @author Karlson2k (Evgeny Grin) 43 */ 44 45 #ifndef MHD_COMPAT_CALLOC_H 46 #define MHD_COMPAT_CALLOC_H 1 47 48 #include "mhd_sys_options.h" 49 50 #ifdef HAVE_CALLOC 51 # if defined(HAVE_STDLIB_H) 52 # include <stdlib.h> 53 # elif defined(HAVE_MALLOC_H) 54 # include <malloc.h> 55 # else 56 /* Try some set of headers, hoping the right header is included */ 57 # if defined(HAVE_UNISTD_H) 58 # include <unistd.h> 59 # endif 60 # include <stdio.h> 61 # include <string.h> 62 # endif 63 64 # define mhd_calloc calloc 65 #else 66 67 # include "sys_base_types.h" /* for size_t, NULL */ 68 69 70 /** 71 * Allocate memory for an array of @a nelem objects of @a elsize size and 72 * initialise all bytes to zero in the allocated memory area. 73 * @param nelem the number of elements to allocate 74 * @param elsize the size of single element 75 * @return the pointer to allocated memory area on success, 76 * the NULL pointer on failure. 77 */ 78 MHD_INTERNAL void * 79 mhd_calloc (size_t nelem, size_t elsize); 80 81 #endif /* ! HAVE_CALLOC */ 82 83 #endif /* ! MHD_COMPAT_CALLOC_H */