swf_tabulation.h (1508B)
1 /* Copyright (C) 2024 |Méso|Star> (contact@meso-star.com) 2 * 3 * This program is free software: you can redistribute it and/or modify 4 * it under the terms of the GNU General Public License as published by 5 * the Free Software Foundation, either version 3 of the License, or 6 * (at your option) any later version. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program. If not, see <http://www.gnu.org/licenses/>. */ 15 16 #ifndef SWF_TABULATION_H 17 #define SWF_TABULATION_H 18 19 #include <rsys/dynamic_array.h> 20 #include <rsys/ref_count.h> 21 22 struct item { 23 double x; /* Function argument */ 24 double fx; /* Value of the function */ 25 double dfx; /* Value of the derivative of the function */ 26 double d2fx; /* Value of the second derivative of the function */ 27 }; 28 #define ITEM_NULL__ {0, 0, 0, 0} 29 static const struct item ITEM_NULL = ITEM_NULL__; 30 31 /* Declare the dynamic array of items */ 32 #define DARRAY_NAME item 33 #define DARRAY_DATA struct item 34 #include <rsys/dynamic_array.h> 35 36 struct swf_tabulation { 37 struct darray_item items; 38 struct mem_allocator* allocator; 39 ref_T ref; 40 }; 41 42 extern LOCAL_SYM res_T 43 tabulation_create 44 (struct mem_allocator* allocator, 45 struct swf_tabulation** out_tab); 46 47 #endif /* SWF_TABULATION_H */