/* 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: dk4maami.ctr */ /** @file dk4maami.c The dk4maami module. */ #line 116 "dk4maami.ctr" #include "dk4conf.h" #include "dk4types.h" #include "dk4error.h" #include "dk4numco.h" #include "dk4maami.h" #if DK4_HAVE_INTMAX_T intmax_t dk4ma_intmax_t_abs(intmax_t a, dk4_er_t *erp) { if (INTMAX_MIN == a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } return (((intmax_t)0L <= a) ? a : ((INTMAX_MIN == a) ? INTMAX_MAX : ((intmax_t)0L - a))); } intmax_t dk4ma_intmax_t_add(intmax_t a, intmax_t b, dk4_er_t *erp) { if (((intmax_t)0L < a) && ((intmax_t)0L < b)) { if ((INTMAX_MAX - a) < b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if (((intmax_t)0L > a) && ((intmax_t)0L > b)) { if (INTMAX_MIN == a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } else { if ((INTMAX_MIN - a) > b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } } return (a + b); } intmax_t dk4ma_intmax_t_sub(intmax_t a, intmax_t b, dk4_er_t *erp) { if (((intmax_t)0L < a) && ((intmax_t)0L > b)) { if ((INTMAX_MAX + b) < a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if (((intmax_t)0L > a) && ((intmax_t)0L < b)) { if ((INTMAX_MIN + b) > a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } return (a - b); } intmax_t dk4ma_intmax_t_mul(intmax_t a, intmax_t b, dk4_er_t *erp) { if (((intmax_t)0L != a) && ((intmax_t)0L != b)) { if (INTMAX_MIN == a) { if ((intmax_t)1L != b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if (INTMAX_MIN == b) { if ((intmax_t)1L != a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if ((intmax_t)0L < a) { if ((intmax_t)0L < b) { if ((INTMAX_MAX / a) < b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if ((INTMAX_MIN / a) > b) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } else { if ((intmax_t)0L < b) { if ((INTMAX_MIN / b) > a) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } else { if ((INTMAX_MAX / ((intmax_t)0L - a)) < ((intmax_t)0L - b)) { dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } } } } } } return (a * b); } intmax_t dk4ma_intmax_t_div(intmax_t a, intmax_t b, dk4_er_t *erp) { intmax_t back = 0; if ((intmax_t)0L != b) { if ((INTMAX_MIN == a) && ((intmax_t)(-1L) == b)) { back = INTMAX_MAX; dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); } else { back = a / b; } } else { if ((intmax_t)0L < a) { back = INTMAX_MAX; } else { if ((intmax_t)0L > a) { back = INTMAX_MIN; } } dk4error_set_simple_error_code(erp, DK4_E_MATH_DIVZERO); } return back; } #endif