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## Struct default_user_allocator_new_delete

boost::default_user_allocator_new_delete — Allocator used as the default template parameter for a UserAllocator template parameter. Uses new and delete.

## Synopsis

    // In header: <boost/pool/pool.hpp>

    struct default_user_allocator_new_delete {
      // types
      typedef std::size_t    size_type;        // An unsigned integral type that can represent the size of the largest object to be allocated.
      typedef std::ptrdiff_t difference_type;  // A signed integral type that can represent the difference of any two pointers.

      // public static functions
      static char * malloc(const size_type);
      static void free(char *const);
    };

## Description

### `default_user_allocator_new_delete` public static functions

1.     static char * malloc(const size_type bytes);

   Attempts to allocate n bytes from the system. Returns 0 if out-of-memory

2.     static void free(char *const block);

   Attempts to de-allocate block.

   Requires: | Block must have been previously returned from a call to UserAllocator::malloc.