From e0c6872cf40896c7be36b11dcc744620f10adf1d Mon Sep 17 00:00:00 2001 From: Norbert Preining Date: Mon, 2 Sep 2019 13:46:59 +0900 Subject: Initial commit --- support/dktools/dk4maas.c | 170 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 170 insertions(+) create mode 100644 support/dktools/dk4maas.c (limited to 'support/dktools/dk4maas.c') diff --git a/support/dktools/dk4maas.c b/support/dktools/dk4maas.c new file mode 100644 index 0000000000..168469024e --- /dev/null +++ b/support/dktools/dk4maas.c @@ -0,0 +1,170 @@ +/* + WARNING: This file was generated by dkct. + 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: dk4maas.ctr +*/ + +/* +Copyright (C) 2015-2017, Dirk Krause + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + +* Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. +* Redistributions in binary form must reproduce the above opyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. +* Neither the name of the author nor the names of contributors may be used + to endorse or promote products derived from this software without specific + prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +ARE DISCLAIMED. +IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY +DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND +ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF +THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +/** @file dk4maas.c The dk4maas module. +*/ + + +#line 100 "dk4maas.ctr" + + +#include "dk4conf.h" +#include "dk4types.h" +#include "dk4error.h" +#include "dk4numco.h" +#include "dk4maas.h" + + + +short +dk4ma_short_abs(short a, dk4_er_t *erp) +{ + if (SHRT_MIN == a) { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + } + return (short)((0 <= a) ? a : ((SHRT_MIN == a) ? SHRT_MAX : (0 - a))); +} + + + +short +dk4ma_short_add(short a, short b, dk4_er_t *erp) +{ + if ((0 < a) && (0 < b)) { + if ((SHRT_MAX - a) < b) { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + } + } else { + if ((0 > a) && (0 > b)) { + if (SHRT_MIN == a) { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + } else { + if ((SHRT_MIN - a) > b) { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + } + } + } + } + return (short)(a + b); +} + + + +short +dk4ma_short_sub(short a, short b, dk4_er_t *erp) +{ + if ((0 < a) && (0 > b)) { + if ((SHRT_MAX + b) < a) { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + } + } else { + if((0 > a) && (0 < b)) { + if ((SHRT_MIN + b) > a) { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + } + } + } + return (short)(a - b); +} + + + +short +dk4ma_short_mul(short a, short b, dk4_er_t *erp) +{ + if ((0 != a) && (0 != b)) { + if (SHRT_MIN == a) { + if (1 != b) { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + } + } else { + if (SHRT_MIN == b) { + if (1 != a) { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + } + } else { + if (0 < a) { + if (0 < b) { + if ((SHRT_MAX / a) < b) { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + } + } else { + if ((SHRT_MIN / a) > b) { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + } + } + } else { + if (0 < b) { + if ((SHRT_MIN / b) > a) { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + } + } else { + if ((SHRT_MAX / (0 - a)) < (0 - b)) { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + } + } + } + } + } + } + return (short)(a * b); +} + + + +short +dk4ma_short_div(short a, short b, dk4_er_t *erp) +{ + short back = 0; + if (0 != b) { + if ((SHRT_MIN == a) && (-1 == b)) { + dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW); + back = SHRT_MAX; + } else { + back = a / b; + } + } else { + dk4error_set_simple_error_code(erp, DK4_E_MATH_DIVZERO); + if (0 < a) { + back = SHRT_MAX; + } else { + if (0 > a) { + back = SHRT_MIN; + } + } + } + return back; +} + -- cgit v1.2.3