/* 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: dk4maal.ctr */ /** @file dk4maal.c The dk4maal module. */ #line 132 "dk4maal.ctr" #include "dk4conf.h" #include "dk4types.h" #include "dk4error.h" #include "dk4numco.h" #include "dk4maal.h" long dk4ma_long_abs(long a, dk4_er_t *erp) { if (LONG_MIN == a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } return ((0L <= a) ? a : ((LONG_MIN == a) ? LONG_MAX : (0L - a))); } long dk4ma_long_add(long a, long b, dk4_er_t *erp) { if ((0L < a) && (0L < b)) { if ((LONG_MAX - a) < b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if ((0L > a) && (0L > b)) { if (LONG_MIN == a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } else { if ((LONG_MIN - a) > b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } } return (a + b); } long dk4ma_long_sub(long a, long b, dk4_er_t *erp) { if ((0L < a) && (0L > b)) { if ((LONG_MAX + b) < a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if ((0L > a) && (0L < b)) { if ((LONG_MIN + b) > a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } return (a - b); } long dk4ma_long_mul(long a, long b, dk4_er_t *erp) { if ((0L != a) && (0L != b)) { if (LONG_MIN == a) { if (1L != b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if (LONG_MIN == b) { if (1L != a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if (0L < a) { if (0L < b) { if ((LONG_MAX / a) < b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if ((LONG_MIN / a) > b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } else { if (0L < b) { if ((LONG_MIN / b) > a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if ((LONG_MAX / (0L - a)) < (0L - b)) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } } } } return (a * b); } long dk4ma_long_div(long a, long b, dk4_er_t *erp) { long back = 0; if (0L != b) { if ((LONG_MIN == a) && (-1L == b)) { back = LONG_MAX; dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } else { back = a / b; } } else { if (0L < a) { back = LONG_MAX; } else { if (0L > a) { back = LONG_MIN; } } dk4error_set_simple_error_code(erp, DK4_E_MATH_DIVZERO); } return back; } long dk4ma_long_from(dk4_im_t i, dk4_er_t *erp) { if (((dk4_im_t)(LONG_MAX) < i) || ((dk4_im_t)(LONG_MIN) > i)) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } return ((long)i); } long dk4ma_long_from_double(double d, dk4_er_t *erp) { long back = 0L; if ((double)(LONG_MIN) > d) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); back = LONG_MIN; } else { if ((double)(LONG_MAX) < d) { dk4error_set_simple_error_code(erp,DK4_E_MATH_OVERFLOW); back = LONG_MAX; } else { back = (long)d; } } return back; }