85 lines
3.1 KiB
C
85 lines
3.1 KiB
C
/*******************************************************************************
|
|
* DISCLAIMER
|
|
* This software is supplied by Renesas Electronics Corporation and is only
|
|
* intended for use with Renesas products. No other uses are authorized. This
|
|
* software is owned by Renesas Electronics Corporation and is protected under
|
|
* all applicable laws, including copyright laws.
|
|
* THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES REGARDING
|
|
* THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING BUT NOT
|
|
* LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
|
|
* AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY DISCLAIMED.
|
|
* TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS
|
|
* ELECTRONICS CORPORATION NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
|
|
* ANY REASON RELATED TO THIS SOFTWARE, EVEN IF RENESAS OR ITS AFFILIATES HAVE
|
|
* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
|
|
* Renesas reserves the right, without notice, to make changes to this software
|
|
* and to discontinue the availability of this software. By using this software,
|
|
* you agree to the additional terms and conditions found by accessing the
|
|
* following link:
|
|
* http://www.renesas.com/disclaimer
|
|
* Copyright 2023 Renesas Electronics Corporation All rights reserved.
|
|
*******************************************************************************/
|
|
|
|
/*******************************************************************************
|
|
* DESCRIPTION : Standard library
|
|
******************************************************************************/
|
|
/******************************************************************************
|
|
* @file string.c
|
|
* - Version : 0.01
|
|
* @brief standard library.
|
|
* .
|
|
*****************************************************************************/
|
|
/******************************************************************************
|
|
* History : DD.MM.YYYY Version Description
|
|
* : 04.04.2023 0.01 First Release
|
|
*****************************************************************************/
|
|
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
|
|
void *memcpy(void *dst, const void *src, size_t len)
|
|
{
|
|
uint8_t *p1 = (uint8_t *)dst;
|
|
const uint8_t *p2 = (const uint8_t *)src;
|
|
while(len > 0U)
|
|
{
|
|
*(p1++) = *(p2++);
|
|
len--;
|
|
}
|
|
return dst;
|
|
}
|
|
/* End of function memcpy( void* dst, const void* src, size_t n ) */
|
|
|
|
void *memset(void *dst, int val, size_t len)
|
|
{
|
|
uint8_t *p = (uint8_t *)dst;
|
|
const uint8_t uc = (uint8_t)val;
|
|
|
|
while (len > 0U)
|
|
{
|
|
*p++ = uc;
|
|
len--;
|
|
}
|
|
return (dst);
|
|
}
|
|
/* End of function memset(void *dst, int val, size_t len) */
|
|
|
|
/**
|
|
* memcmp - Compare two areas of memory
|
|
* @cs: One area of memory
|
|
* @ct: Another area of memory
|
|
* @count: The size of the area.
|
|
*/
|
|
int memcmp(const void * cs, const void * ct, size_t count)
|
|
{
|
|
const unsigned char *su1, *su2;
|
|
int res = 0;
|
|
|
|
for( su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--)
|
|
if ((res = *su1 - *su2) != 0)
|
|
break;
|
|
return res;
|
|
}
|