Thread: Using dynamically allocated array (malloc) - Using an array pointer

I am a beginner C developer.

Each line of the input file must be split into words (token) according a space delimiter and each token stored in an array.

The problematic function is the following

Code:

char *str2array (char *p_buffer, ssize_t count)
{
   char *p_array = NULL;
   char *p_token = NULL;
   char delimiters[] = " \t";

   if (count > 0)
   {
      p_array = malloc (count + 1);
      if (p_array != NULL)
      {
         printf ("-> malloc=%p\n", p_array);
         printf (" p_buffer=%p\n", p_buffer);
         p_token = strtok (p_buffer, delimiters);
         for (int i = 0; p_token != NULL; i++)
         {
            printf ("  p_token=%p\n", p_token);
            printf (" array[%d]=%p\n", i, &(p_array[i]));
            p_token = strtok (NULL, delimiters);
         }
      }
   }

   return p_array;
}

Below the result of the first lines

Code:

$ ./prog.exe         
-> malloc=0x600048c90
 p_buffer=0x600000480
  p_token=0x600000480
 array[0]=0x600048c90
  p_token=0x600000486
 array[1]=0x600048c91
  p_token=0x60000048f
 array[2]=0x600048c92
-> malloc=0x600048c90
 p_buffer=0x600000480
  p_token=0x600000480
 array[0]=0x600048c90
  p_token=0x600000485
 array[1]=0x600048c91
-> malloc=0x600048c90
 p_buffer=0x600000480
  p_token=0x600000480
 array[0]=0x600048c90
  p_token=0x600000485
 array[1]=0x600048c91

Coresponding to the 3 first records

Code:

START ANALYSIS 1
DATA LINE
DATA LINE

I do not see where my mistakes are:

• For example, the first token of the first line has a length of 5+1 characters, and the second token of the first line has a length of 8+1 characters.

'p_array' memory address progression is only 1 character each time. So I badly increment each element of the array.

Can you, please, help me to correct this code ?

For a moment I don't try to stock anything in the array because I am not able to correctly reference each item of it.

Thank you Salem.