re-calloc???

Help! I need to reallocating memory then set the entire/partial buffer into specific value.

calloc only works for allocating memory, not reallocating memory
and memset only works for char data type... T_T...

Should I do:

Code:

---

  buffer <- malloc(5)

  for i <- 0 to 4
    buffer[i] <- 2
  end for

  ; do something with buffer[i]

  buffer <- realloc(10)

  for i <- 5 to 9
    buffer[i] <- 2
  end for

---

Or any std function out there?

Btw, we should prefer to use std function instead of our function because they are faster sometime.

memset will work with any pointer.

Yeah. You can use realloc() to do your job and set the buffer to whatever value

Some addition,...

This will works only for 0 value.

Code:

---

long long *int64;

//malloc and do something like above (previous post)

int64 = realloc(int64, 10 * sizeof(long long));

memset(int64, 0, 10 * sizeof(long long));

---

Yes, memset only works on arrays of bytes, that's true.
If you want to assign specific pointer, float or struct values, then you need a loop.

from what i hear, realloc cannot be used to downsize the array.

although i have seen it happen quite often.

It can, there's just no reason to think the memory usage will actually become less. As it's probably more efficient for the OS just to leave you with a bit more than you want.