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67 lines
1.1 KiB
67 lines
1.1 KiB
/*
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* helpers.c
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*
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* Created on: Dec 7, 2017
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* Author: maximilian
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*/
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//--------------Includes-----------------
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#include"stm32f10x.h"
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#include"helpers.h"
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#include"error.h"
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#include<stdlib.h>
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uint8_t osItoa(int iint, char* iochar, size_t ibuffsize, size_t* obuffsize)
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{
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int i = 0;
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int j = 0;
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char z[16];
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int isnegative = 0;
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size_t buff_size_1 = ibuffsize;
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size_t buff_size_2 = sizeof(z);
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/* Signed or unsigned? */
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if(iint < 0)
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{
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iint *= -1;
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isnegative = 1;
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}
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if(iint == 0)
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{
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z[i] = '0';
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i++;
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}
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/* Take last digit and convert until iint is gone. */
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while(iint > 0)
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{
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z[i] = (char)('0' + iint % 10);
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iint /= 10;
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i++;
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if( ((buff_size_1 - 1) < (unsigned int)i) || ((buff_size_2 - 1) < (unsigned int)i))
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{
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THROW_ERROR(E_BUFFER_OVERFLOW);
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return 0;
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}
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}
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/* Fix the minus symbol. */
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if( ((buff_size_1 - 1) < (unsigned int)i))
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return 0;
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else if(isnegative)
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{
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z[i] = '-';
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i++;
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}
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/* Copy into output (reverse it as well while doing so). */
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j = i-1;
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while(j >= 0)
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{
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iochar[j] = z[i-j-1];
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j--;
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}
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if(obuffsize != NULL)
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*obuffsize = i;
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return 1;
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}
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