/* 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: dk4maalu.ctr */ /** @file dk4maalu.c The dk4maalu module. */ #line 126 "dk4maalu.ctr" #include "dk4conf.h" #include "dk4types.h" #include "dk4error.h" #include "dk4numco.h" #include "dk4maalu.h" #line 136 "dk4maalu.ctr" #if DK4_HAVE_LONG_LONG unsigned long long dk4ma_ull_add(unsigned long long a, unsigned long long b, dk4_er_t *erp) { if ((ULLONG_MAX - a) < b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } return (unsigned long long)(a + b); } unsigned long long dk4ma_ull_sub(unsigned long long a, unsigned long long b, dk4_er_t *erp) { if (b > a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } return (unsigned long long)(a - b); } unsigned long long dk4ma_ull_mul(unsigned long long a, unsigned long long b, dk4_er_t *erp) { if (0ULL < a) { if ((ULLONG_MAX / a) < b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } return (unsigned long long)(a * b); } unsigned long long dk4ma_ull_div(unsigned long long a, unsigned long long b, dk4_er_t *erp) { #line 180 "dk4maalu.ctr" if (0ULL < b) { #line 182 "dk4maalu.ctr" return (unsigned long long)(a / b); } else { dk4error_set_simple_error_code(erp, DK4_E_MATH_DIVZERO); #line 186 "dk4maalu.ctr" return (unsigned long long)(ULLONG_MAX); } } unsigned long long dk4ma_ull_from(dk4_um_t u, dk4_er_t *erp) { if ((dk4_um_t)(ULLONG_MAX) < u) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } return ((unsigned long long)u); } unsigned long long dk4ma_ull_from_double(double d, dk4_er_t *erp) { unsigned long long back = 0ULL; if ((double)(ULLONG_MAX) < d) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); back = ULLONG_MAX; } else { if (0.0 > d) { dk4error_set_simple_error_code(erp,DK4_E_MATH_OVERFLOW); } else { back = (unsigned long long)d; } } return back; } #endif