/* 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: dk4maac.ctr */ /** @file dk4maac.c The dk4maac module. */ #line 130 "dk4maac.ctr" #include "dk4conf.h" #include "dk4types.h" #include "dk4error.h" #include "dk4numco.h" #include "dk4maac.h" #line 140 "dk4maac.ctr" signed char dk4ma_char_abs(signed char a, dk4_er_t *erp) { if (SCHAR_MIN == a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } return (signed char)((0 <= a) ? a : ((SCHAR_MIN == a) ? SCHAR_MAX : (0 - a))); } signed char dk4ma_char_add(signed char a, signed char b, dk4_er_t *erp) { if ((0 < a) && (0 < b)) { if ((SCHAR_MAX - a) < b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if ((0 > a) && (0 > b)) { if (SCHAR_MIN == a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } else { if ((SCHAR_MIN - a) > b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } } return (signed char)(a + b); } signed char dk4ma_char_sub(signed char a, signed char b, dk4_er_t *erp) { if ((0 < a) && (0 > b)) { if ((SCHAR_MAX + b) < a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if ((0 > a) && (0 < b)) { if ((SCHAR_MIN + b) > a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } return (signed char)(a - b); } signed char dk4ma_char_mul(signed char a, signed char b, dk4_er_t *erp) { #line 201 "dk4maac.ctr" if ((0 != a) && (0 != b)) { if (SCHAR_MIN == a) { if ((signed char)1 != b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if (SCHAR_MIN == b) { if ((signed char)1 != a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if (0 < a) { if (0 < b) { if ((SCHAR_MAX / a) < b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if ((SCHAR_MIN / a) > b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } else { if (0 < b) { if ((SCHAR_MIN / b) > a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if ((SCHAR_MAX / (0 - a)) < (0 - b)) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } } } } #line 237 "dk4maac.ctr" return (signed char)(a * b); } signed char dk4ma_char_div(signed char a, signed char b, dk4_er_t *erp) { signed char back = 0; if (0 != b) { if ((SCHAR_MIN == a) && (-1 == b)) { back = SCHAR_MAX; dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } else { back = a / b; } } else { if (0 < a) back = SCHAR_MAX; if (0 > b) back = SCHAR_MIN; dk4error_set_simple_error_code(erp, DK4_E_MATH_DIVZERO); } return back; } signed char dm4ma_char_from(dk4_im_t i, dk4_er_t *erp) { if (((dk4_im_t)(SCHAR_MAX) < i) || ((dk4_im_t)(SCHAR_MIN) > i)) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } return ((signed char)i); } signed char dk4ma_char_from_double(double d, dk4_er_t *erp) { signed char back = 0x00; if ((double)(SCHAR_MIN) > d) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); back = SCHAR_MIN; } else { if ((double)(SCHAR_MAX) < d) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); back = SCHAR_MAX; } else { back = (signed char)d; } } return back; }