typedef struct T_NUMVECT
{
  int size;
  double eps;
  double v[];
}
t_numv;

t_param* param_init(void)
{
  return malloc (sizeof( t_param ));
}

t_numv* numv_init(void)
{
  t_numv *numv = malloc (sizeof( t_numv ));
  numv->size = 0;
  return numv;
}

int numv_append(t_numv *numv, double val)
{
  numv->size++;
  if(numv->size % BLOCK_SIZE == 0)
    if((numv = realloc(numv, sizeof(t_numv) + (numv->size + BLOCK_SIZE) * sizeof(double))) == NULL)
      return E_BAD_ALLOC;

  numv->v[numv->size - 1] = val;
  return E_OK;
}

main():
t_numv *numv = numv_init();
.
.
.
while(somework)
numv_append(numv, doubleval);


anyone can give me a hint why i get memory errors on each realloc ?