Thread: Segmentation fault

Hi, I have a problem with the segmentation fault.
This method adds letters to a string(name), but I dont know if i'm doing the wright way, I suposse it´s wrong, because the output is not the same of the line of the file and in the end of the output it appears : segmentation fault.
I want another way to add the letters to the string.

Code:

  int ch;
  int add = 0;
  char *name;
  FILE *file = fopen(".tabpasswd", "r");
  while((ch=fgetc(file)) != EOF) {
   
    if(ch != ':') {
      name[add] = ch;
      add++;
    }

   printf("%s", name);

Thanks

You have no space allocated for 'name' when you do this:

Code:

char *name;

All you have done there is to declare a pointer variable. There are a couple of different ways you could allocate some space which belongs to you, and you can manipulate. Try declaring 'name' as an array, something like this:

Code:

enum{
         ARR_MAX = 25   /* or whatever arbitrary size you need your array to be */
};

char name[ARR_MAX];

Alternatively, you could malloc some space and then you would be able to user your pointer variable '*name'..
~/

But i dont want to give a size to the array.
I want to use it like the ArraList in java.
How can i do this?

Thanks