これで正解でしょうか?


#include <string.h>
#include <stdio.h>
typedef struct STRDATA{ char **start; char **end;}strdata;

f(strdata x){
delete *(x.start); *(x.start) = new char [20];
strcpy(*(x.start),"++++++++++++++"); }


main(){
char *ch=NULL;

strdata x;
x.start=&ch;
f(x);
printf("%s",ch);}