gistfile1.txt

void*
static_resource::
do_allocate(
    std::size_t n,
    std::size_t align)
{
    std::size_t const extra = (
        align * ((i_ + align - 1) / align)) - i_;
    if( extra > n_ ||
        n > n_ ||
        n > n_ - extra)
        BOOST_THROW_EXCEPTION(
            std::bad_alloc());
    void* const p = reinterpret_cast<
        void*>(i_ + extra);
    i_+= extra + n;
    n_ -= extra + n;
    return p;
}