assign value of pointer array

Code:

---

char *name[4];
 int i = 0;
 while ( i < 4)
 {
    int k = 0;
    while (k < 4)
      {
            *(name[i]+k) = 'c';
            k++;
      }
   
    i++;
  }

---

result: error!

why?

Because name[4] is out of bounds.

You might want to look-up what i++ and k++ actually mean.
More specifically, what the Boolean expression (i++ < 4) means...

Code:

---

int i = 3;
if(i++ < 4)
  printf("I solved my own question\n");

---

Not sure what you are trying to do but the code is attempting to insert values at name[4] which is outside the array index

[edit: Beaten to the punch by zacs7]

Quote:

---

Originally Posted by zacs7

Because name[4] is out of bounds.

You might want to look-up what i++ and k++ actually mean.
More specifically, what the Boolean expression (i++ < 4) means...

Code:

---

int i = 3;
if(i++ < 4)
  printf("I solved my own question\n");

---

---

Code:

---

char *name[4];
 int i = 0;
 while ( i < 4)
 {
    int k = 0;
    while (k < 4)
      {
            *(name[i]+k) = 'c';
            k++;
      }
   
    i++;
  }

---

Quote:

---

Originally Posted by strider1974

Not sure what you are trying to do but the code is attempting to insert values at name[4] which is outside the array index

[edit: Beaten to the punch by zacs7]

---

Code:

---

char *name[4];
 int i = 0;
 while ( i < 4)
 {
    int k = 0;
    while (k < 4)
      {
            *(name[i]+k) = 'c';
            k++;
      }
   
    i++;
  }

---

Code:

---

char *name[4][4];
 int i = 0;
 while ( i < 4)
 {
    int k = 0;
    while (k < 4)
      {
            *(name[i]+k) = 'c';
            k++;
      }

---

i++;
}




//now u r code is oky.....u r using one dimention pointer array but u using two loop nested it not work....

using two dimention then try.....

Quote:

---

Originally Posted by karimmughal

Code:

---

char *name[4][4];
 int i = 0;
 while ( i < 4)
 {
    int k = 0;
    while (k < 4)
      {
            *(name[i]+k) = 'c';
            k++;
      }

---

i++;
}




//now u r code is oky.....u r using one dimention pointer array but u using two loop nested it not work....

using two dimention then try.....

---

That is 3 dimension

Code:

---

char *name[4][4];

---

Quote:

---

Originally Posted by zcrself

Code:

---

char *name[4];
 int i = 0;
 while ( i < 4)
 {
    int k = 0;
    while (k < 4)
      {
            *(name[i]+k) = 'c';
            k++;
      }
   
    i++;
  }

---

result: error!

why?

---

What are you trying to achieve? name[i] is an address, adding k to it will try to access any random memory which results in segf.

Everyone who posted and modified the original in the beginning needs to take a crash course in C strings.

Quote:

---

Everyone who posted and modified the original in the beginning needs to take a crash course in C strings.

---

Everyone? I only see one poster that attempted to modify the original code (karimmughal's post). Everyone else simply pointed out the 2 mains issues with the code.

Everyone who modified it, yes. I see that there is only one aside from the OP, so that's a total of two who needs to take a crash course.

The only problem I see from the original is that there was no storage allocated for name strings. There was never any bounds issue.

Quote:

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Originally Posted by nonoob

The only problem I see from the original is that there was no storage allocated for name strings. There was never any bounds issue.

---

I believe the code in the original post was edited.