Which style of allocators is used?

[Alex Vinokur]

Compiler g++ 3.3.1 (cygming special).
Here is a fragment from file stl_alloc.h.

/**
 *  @defgroup Allocators Memory Allocators
 *  @if maint
 *  stl_alloc.h implements some node allocators.  These are NOT the same as
 *  allocators in the C++ standard, nor in the original H-P STL.  They do not
 *  encapsulate different pointer types; we assume that there is only one
 *  pointer type.  The C++ standard allocators are intended to allocate
 *  individual objects, not pools or arenas.
 *
 *  In this file allocators are of two different styles:  "standard" and
 *  "SGI" (quotes included).  "Standard" allocators conform to 20.4.  "SGI"
 *  allocators differ in AT LEAST the following ways (add to this list as you
 *  discover them):
 *
 *   - "Standard" allocate() takes two parameters (n_count,hint=0) but "SGI"
 *     allocate() takes one paramter (n_size).
 *   - Likewise, "standard" deallocate()'s argument is a count, but in "SGI"
 *     is a byte size.
 *   - max_size(), construct(), and destroy() are missing in "SGI" allocators.
 *   - reallocate(p,oldsz,newsz) is added in "SGI", and behaves as
 *     if p=realloc(p,newsz).
 *
 *  "SGI" allocators may be wrapped in __allocator to convert the interface
 *  into a "standard" one.
 *  @endif
 *
 *  @note The @c reallocate member functions have been deprecated for 3.2
 *        and will be removed in 3.4.  You must define @c _GLIBCPP_DEPRECATED
 *        to make this visible in 3.2; see c++config.h.
 *
 *  The canonical description of these classes is in docs/html/ext/howto.html
 *  or online at http://gcc.gnu.org/onlinedocs/libstdc++/ext/howto.html#3
*/


So, the question is: which style of allocators ("SGI" or "Standard") is used?
For instance,
std::vector<int> v (10);
Which allocator is used here: "SGI" or "Standard"?


-- 
   Alex Vinokur
     http://mathforum.org/library/view/10978.html
     http://sourceforge.net/users/alexvn