1 /* 2 * Copyright (c) 2017-2018, Arm Limited. 3 * SPDX-License-Identifier: MIT 4 */ 5 #ifndef _EXP2F_DATA_H 6 #define _EXP2F_DATA_H 7 8 /* #include <features.h> */ 9 #include <stdint.h> 10 11 /* Shared between expf, exp2f and powf. */ 12 #define EXP2F_TABLE_BITS 5 13 #define EXP2F_POLY_ORDER 3 14 extern /* hidden */ const struct exp2f_data { 15 uint64_t tab[1 << EXP2F_TABLE_BITS]; 16 double shift_scaled; 17 double poly[EXP2F_POLY_ORDER]; 18 double shift; 19 double invln2_scaled; 20 double poly_scaled[EXP2F_POLY_ORDER]; 21 } my__exp2f_data; 22 23 #endif 24