Another memory leak in Pari/GP 2.2.5

[Alexander Shumakovitch <shurik@math.unibas.ch>]

Hi all!

I guess I've found a memory leak in Pari 2.2.5 (on Linux 2.4.20). Here
is how to reproduce it:
  (19:36) gp > x = vector(2); y = vectorv(2);
  time = 0 ms.
  (19:36) gp > m = matrix(2,2); m[2, ] = x; m[, 2] = y; getheap
  time = 0 ms.
  %2 = [7, 77]
  (19:37) gp > m = matrix(2,2); m[2, ] = x; m[, 2] = y; getheap
  time = 0 ms.
  %3 = [8, 85]
  (19:37) gp > m = matrix(2,2); m[2, ] = x; m[, 2] = y; getheap
  time = 0 ms.
  %4 = [9, 91]

The histsize is set to 1, so history is not an issue. What is
interesting is that if one switches the assignments or skips one of
them, everything goes back to normal:
  (19:37) gp > m = matrix(2,2); m[, 2] = y; m[2, ] = x; getheap
  time = 0 ms.
  %7 = [12, 109]
  (19:39) gp > m = matrix(2,2); m[, 2] = y; m[2, ] = x; getheap
  time = 0 ms.
  %8 = [12, 109]


Thanks!

  --- Alexander.