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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /support/dktools/dk4maas.c
Initial commit
Diffstat (limited to 'support/dktools/dk4maas.c')
-rw-r--r--support/dktools/dk4maas.c170
1 files changed, 170 insertions, 0 deletions
diff --git a/support/dktools/dk4maas.c b/support/dktools/dk4maas.c
new file mode 100644
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+/*
+ 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;
+}
+