stdext::hash_map question

[Jacky Luk]

Could anyone explain why this code doesn't crash,
http://www.codeguru.co m/forum/showthread.php? t=315286
while mine does,

typedef stdext::hash_map<int, bool> pf_type;
pf_type pf;


cAStar::cAStar()
{
  char buff[256];
  pf[1] = false;
  sprintf (buff, "pf[1] is %s\n", pf[1] ? "TRUE" : "FALSE");
  OutputDebugString(buff);
}

The error was "Vector subscript out of range"
if memory needs to be reserved, there is no point to use it?!


Thanks a lot :)
Jack