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%% options
copyright owner = Dirk Krause
copyright year = 2015-xxxx
SPDX-License-Identifier: BSD-3-Clause
%% header
/** @file
Arithmetic operations on size_t.
*/
#ifndef DK4CONF_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4conf.h"
#else
#include <dktools-4/dk4conf.h>
#endif
#endif
#ifndef DK4TYPES_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4types.h"
#else
#include <dktools-4/dk4types.h>
#endif
#endif
#ifndef DK4ERROR_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4error.h"
#else
#include <dktools-4/dk4error.h>
#endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
/** Addition of size_t values.
@param a Left operand.
@param b Right operand.
@param erp Error report, may be NULL.
@return Result.
*/
size_t
dk4ma_size_t_add(size_t a, size_t b, dk4_er_t *erp);
/** Multiplication of size_t values.
@param a Left operand.
@param b Right operand.
@param erp Error report, may be NULL.
@return Result.
*/
size_t
dk4ma_size_t_mul(size_t a, size_t b, dk4_er_t *erp);
#ifdef __cplusplus
}
#endif
%% module
#include "dk4conf.h"
#include "dk4types.h"
#if DK4_HAVE_LIMITS_H
#ifndef LIMITS_H_INCLUDED
#include <limits.h>
#define LIMITS_H_INCLUDED 1
#endif
#endif
#if DK4_HAVE_STDINT_H
#ifndef STDINT_H_INCLUDED
#if defined(__cplusplus) && (!defined(__STDC_LIMIT_MACROS))
#define __STDC_LIMIT_MACROS 1
#endif
#if defined(__cplusplus) && (!defined(__STDC_CONSTANT_MACROS))
#define __STDC_CONSTANT_MACROS 1
#endif
#include <stdint.h>
#define STDINT_H_INCLUDED 1
#endif
#endif
#include "dk4error.h"
#include "dk4masz.h"
#include "dk4error.h"
#include "dk4numco.h"
size_t
dk4ma_size_t_add(size_t a, size_t b, dk4_er_t *erp)
{
if ((SIZE_MAX - b) < a) {
dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW);
}
return (a + b);
}
size_t
dk4ma_size_t_mul(size_t a, size_t b, dk4_er_t *erp)
{
if ((0 < a) && (0 < b)) {
if ((SIZE_MAX / a) < b) {
dk4error_set_simple_error_code(erp, DK4_E_MATH_OVERFLOW);
}
}
return (a * b);
}
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