#include <stdio.h>
#include <stdlib.h>
char *mystrcpy(char *dest, const char *src)
{
char *ret = dest;
if(dest != NULL && src != NULL)
while((*dest++ = *src++) != '\0');
return ret;
}
int main()
{
char str1[] = "helloworld";
char str2[128];
mystrcpy(str2,str1);
puts(str2);
exit(0);
}
#include <stdio.h>
#include <stdlib.h>
char *mystrcpy(char *dest, const char *src)
{
char *ret = dest;
if(dest != NULL && src != NULL)
while((*dest++ = *src++) != '\0');
return ret;
}
char *mystrncpy(char *dest, const char *src,size_t n)
{
int i;
for(i = 0; i < n && (dest[i] = src[i]); i++)
;
for(; i<n; i++)
dest[i] = '\0';
return dest;
}
int main()
{
char str1[] = "helloworld";
char str2[128];
//mystrcpy(str2,str1);
mystrncpy(str2,str1,5);
puts(str2);
exit(0);
}