Pointers inside a structure [on hold]
- by user3402552
I have the next program:
#include<stdio.h>
#include<stdlib.h>
struct a
{
char *ch;
char *str;
};
int main()
{
struct a s1;
char ptr[100];
int m, n;
printf("\n Enter a string : ");
gets(ptr);
m = strlen(ptr);
s1.ch = (char *)malloc(strlen(ptr) * sizeof(char));
if(s1.ch)
{
strcpy(s1.ch, ptr);
}
else
{
printf("\n Alocation failed!\n");
}
printf("\n %s\n\n", s1.ch);
while(*s1.ch)
{
printf(" %c", *(s1.ch));
s1.ch++;
}
printf("\n\n");
s1.ch = s1.ch - m;
printf("\n\n\n %s \n\n", s1.ch);
}
Is this ok this program in this way ?
I mean the pointers should not be initialized ?
And if it is not ok, why compile it without errors?
