Thread: Simple array/pointer problem...

If I declare a character array and want to add an item to the array, without having it point to that item, for example:

Code:

Code:

char * arr[50];
char temp[255];

for(loop where temp is always changing)
{
  array[i] = temp;
}
for(loop through array)
  printf("%s", array[i]);

Results:

Code:

same
same
same
same

How can I make it so that all elements in the array do not point to the current temp value, but point to what temp was at that time? I know its a pointer problem, but I don't really understand pointers that well.

you have to allocate new memory for each element of the array

Code:

char * array[50];
char temp[255];

for(loop where temp is always changing)
{
  array[i] = malloc(strlen(temp)+1);
  strcpy(array[i],temp);
}
for(loop through array)
  printf("%s", array[i]);

or just hard-code the memory (not a very good idea for a large array!)

Code:

char  array[50][255];
char temp[255];

for(loop where temp is always changing)
{
  strcpy(array[i], temp);
}
for(loop through array)
  printf("%s", array[i]);