/* Copyright (C) 2015-2020, Dirk Krause SPDX-License-Identifier: BSD-3-Clause */ /* WARNING: This file was generated by the dkct program (see http://dktools.sourceforge.net/ for details). Changes you make here will be lost if dkct is run again! You should modify the original source and run dkct on it. Original source: dk4maall.ctr */ /** @file dk4maall.c The dk4maall module. */ #line 136 "dk4maall.ctr" #include "dk4conf.h" #include "dk4types.h" #include "dk4error.h" #include "dk4numco.h" #include "dk4maall.h" #if DK4_HAVE_LONG_LONG long long dk4ma_ll_abs(long long a, dk4_er_t *erp) { if (LLONG_MIN == a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } return ((0LL <= a) ? a : ((LLONG_MIN == a) ? LLONG_MAX : (0LL - a))); } long long dk4ma_ll_add(long long a, long long b, dk4_er_t *erp) { if ((0LL < a) && (0LL < b)) { if ((LLONG_MAX - a) < b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if ((0LL > a) && (0LL > b)) { if (LLONG_MIN == a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } else { if ((LLONG_MIN - a) > b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } } return (a + b); } long long dk4ma_ll_sub(long long a, long long b, dk4_er_t *erp) { if ((0LL < a) && (0LL > b)) { if ((LLONG_MAX + b) < a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if ((0LL > a) && (0LL < b)) { if ((LLONG_MIN + b) > a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } return (a - b); } long long dk4ma_ll_mul(long long a, long long b, dk4_er_t *erp) { if ((0LL != a) && (0LL != b)) { if (LLONG_MIN == a) { if (1LL != b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if (LLONG_MIN == b) { if (1LL != a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if (0LL < a) { if (0LL < b) { if ((LLONG_MAX / a) < b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if ((LLONG_MIN / a) > b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } else { if (0LL < b) { if ((LLONG_MIN / b) > a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if ((LLONG_MAX / (0LL - a)) < (0LL - b)) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } } } } return (a * b); } long long dk4ma_ll_div(long long a, long long b, dk4_er_t *erp) { long long back = 0; if (0LL != b) { if ((LLONG_MIN == a) && (-1LL == b)) { back = LLONG_MAX; dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } else { back = a / b; } } else { if (0LL < a) { back = LLONG_MAX; } else { if (0LL > a) { back = LLONG_MIN; } } dk4error_set_simple_error_code(erp, DK4_E_MATH_DIVZERO); } return back; } long long dk4ma_ll_from(dk4_im_t i, dk4_er_t *erp) { if (((dk4_im_t)(LLONG_MAX) < i) || ((dk4_im_t)(LLONG_MIN) > i)) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } return ((long long)i); } long long dk4ma_ll_from_double(double d, dk4_er_t *erp) { long long back = 0LL; if ((double)(LLONG_MIN) > d) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); back = LLONG_MIN; } else { if ((double)(LLONG_MAX) < d) { dk4error_set_simple_error_code(erp,DK4_E_MATH_OVERFLOW); back = LLONG_MAX; } else { back = (long long)d; } } return back; } #endif