C strings and pointers mitola

[mitola]

C program language:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <iostream>
 
 
int main()
{char a[100],b[100],*pa,*pb;
pa = &a; pb = &b;
    scanf("%s",*pa);
    scanf("%s",*pb);
    printf("vnesi 2 niza / input 2 strings");
    printf("\nstring: %s",*pa);
    printf("string: %s",*pb); 
    system("pause");
    return 0;
}
 

well i dont know how to connect string and a pointer

pa = &a; pb = &b; i presume that problem is only here but i cant corect it.

[ilikepython]

C program language:


#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <iostream>



int main()
{char a[100],b[100],*pa,*pb;
pa = &a; pb = &b;
scanf("%s",*pa);
scanf("%s",*pb);
printf("vnesi 2 niza / input 2 strings");
printf("\nstring: %s",*pa);
printf("string: %s",*pb);
system("pause");
return 0;
}


well i dont know how to connect string and a pointer

pa = &a; pb = &b; i presume that problem is only here but i cant corect it.

Ok, A and B are already pointers so you don't have to get the addresses. If you want a pointer to a char array, you need a pointer to a pointer.

[Banfa]

Ok, A and B are already pointers so you don't have to get the addresses. If you want a pointer to a char array, you need a pointer to a pointer.

No on the whole this is rather wrong!

[Banfa]

This is not wrong

pa = &a; pb = &b;

but this would be more conventional

pa = a; pb = b;

Generally speaking for an array a as you have defined it the a == &a, the only difference is the type of the expression.

However you 1st actual problem is in your scanf lines

    scanf("%s",*pa);
    scanf("%s",*pb);
 

%s tells scanf to expect a pointer to char but you pass a char, *pa these should be

    scanf("%s",pa);
    scanf("%s",pb);
 

And then you make the same mistake in your printf calls

    printf("\nstring: %s",*pa);
    printf("string: %s",*pb); 
 

should be

    printf("\nstring: %s",pa);
    printf("string: %s",pb); 
 

However on the whole in this program pa and pb are completely superfluous, you could get rid of them and replace them with a and b.