C++ <new&delete>

C의 malloc&free사용

#include <iostream>
#include <string.h>
#include <stdlib.h>
using namespace std;

char * MakeStrAdr(int len)
{
     char * str = (char*)malloc(sizeof(char)*len);
     return str;
}

int main(void)
{
     char * str = MakeStrAdr(20);
     strcpy(str, "I'm so happy~");
     cout<<str<<endl;
     free(str);
     return 0;
}

 

결과

new와 delete사용

#include <iostream>
#include <string.h>
using namespace std;

char * MakeStrAdr(int len)
{
     char * str = new char[len];
     return str;
}

int main(void)
{
     char * str = MakeStrAdr(20);
     strcpy(str, "I'm so happy~");
     cout<<str<<endl;
     delete []str;
     return 0;
}

 

결과