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─────C/C++ Language─────────────────────────────────────────────────────────
 
     You can write your own version of the new operator to implement a
     custom memory-allocation scheme. You must use one of the following
     prototypes:
 
         void __near *operator new( size_t size );
         void __far  *operator new( size_t size );
         void __huge *operator new( unsigned long elems, size_t size );
         void __based(void) *operator new( __segment seg, size_t size );
 
     A new operator that returns a near or a far pointer has a parameter
     of type size_t, which is the amount of space to be allocated. The
     compiler sets the value of this parameter when the new operator is
     called.
 
     A new operator that returns a huge pointer acts like an array
     allocator and has two parameters. The first parameter is the
     number of elements to allocate, and the second parameter is the
     size of one element. If the total size of the array is greater
     than 128K, the size of each element must be a power of 2.
 
     A new operator that returns a based pointer has two parameters.
     The first is a segment variable, which is the segment specified
     using the __based keyword in the allocation expression. The second
     parameter is the amount of space to be allocated.
 
     Passing Additional Arguments
 
     You can pass additional arguments to your customized new operator;
     these are called "placement" arguments. These arguments appear
     last when you declare the argument list of the new operator's
     prototype, but they appear before the type name and in parentheses
     when you call new. For example, if you want a near new operator
     that takes an integer placement argument, use the following
     prototype:
 
         void __near *operator new( size_t size, int parm );
 
     To call this operator and specify a value for the placement
     argument, you can use the following syntax:
 
         T __near *pT = new __near (25) T;
 
     The placement argument receives the value 25.
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