41 lines
644 B
C
41 lines
644 B
C
/*
|
|
* libc.c
|
|
*
|
|
* Created on: Oct 11, 2018
|
|
* Author: rick
|
|
*/
|
|
|
|
#include "libc.h"
|
|
|
|
int memcpy(char *dst, char *src, int amount) {
|
|
for (int i = 0; i < amount; i++) {
|
|
dst[i] = src[i];
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int memset(char *dst, char data, int amount) {
|
|
for (int i = 0; i < amount; ++i) {
|
|
dst[i] = data;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int itoa(int i, char *target) {
|
|
target[0] = (char) (i % 10 + '0');
|
|
target[1] = '\0';
|
|
if (i > 9) {
|
|
itoa(i / 10, target + 1);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int strlen(char *str) {
|
|
int length = 0;
|
|
while (str[length] != 0) {
|
|
length++;
|
|
}
|
|
return length;
|
|
}
|
|
|