/* 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: dk4maaul.ctr */ /** @file dk4maaul.c The dk4maaul module. */ #line 122 "dk4maaul.ctr" #include "dk4conf.h" #include "dk4types.h" #include "dk4error.h" #include "dk4numco.h" #include "dk4maaul.h" #line 132 "dk4maaul.ctr" unsigned long dk4ma_ulong_add(unsigned long a, unsigned long b, dk4_er_t *erp) { #line 139 "dk4maaul.ctr" #line 140 "dk4maaul.ctr" #line 141 "dk4maaul.ctr" #line 142 "dk4maaul.ctr" if ((ULONG_MAX - a) < b) { #line 143 "dk4maaul.ctr" dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } #line 146 "dk4maaul.ctr" return (a + b); } unsigned long dk4ma_ulong_sub(unsigned long a, unsigned long b, dk4_er_t *erp) { if (b > a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } return (a - b); } unsigned long dk4ma_ulong_mul(unsigned long a, unsigned long b, dk4_er_t *erp) { if (0UL < a) { if ((ULONG_MAX / a) < b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } return (a * b); } unsigned long dk4ma_ulong_div(unsigned long a, unsigned long b, dk4_er_t *erp) { if (0UL < b) { return (a / b); } else { dk4error_set_simple_error_code(erp, DK4_E_MATH_DIVZERO); return (unsigned long)(ULONG_MAX); } } unsigned long dk4ma_ulong_from(dk4_um_t u, dk4_er_t *erp) { if ((dk4_um_t)(ULONG_MAX) < u) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } return ((unsigned long)u); } unsigned long dk4ma_ulong_from_double(double d, dk4_er_t *erp) { unsigned long back = 0UL; if ((double)(ULONG_MAX) < d) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); back = ULONG_MAX; } else { if (0.0 > d) { dk4error_set_simple_error_code(erp,DK4_E_MATH_OVERFLOW); } else { back = (unsigned long)d; } } return back; }