#include <stdio.h>
#include <math.h>
#include <string.h>


int main(void){
	FILE * src=fopen("simple.bin", "rb");
    FILE * des=fopen("dst.bin", "wb");
    char buf[20];
    int readCnt;
    if(src==NULL || des == NULL)
    {
        puts("파일오픈 실패!");
        return -1;
    }

	while(1)
        {
            readCnt=fread((void*)buf, 1, sizeof(buf), src);

            if(readCnt<sizeof(buf))
            {
                if(feof(src)!=0)
                {
                    fwrite((void*)buf, 1, readCnt, des);
                    puts("파일복사 완료");
                    break;
                }
                else
                    puts("파일복사 실패");

                break;
            }

            fwrite((void*)buf, 1, sizeof(buf), des);
        }
        
    fclose(src);
    fclose(des);
    return 0;
}