Mike Weiblen wrote: > std::vector is guaranteed to have contiguous memory. So vector.front() or > &(vector[0]) are legal references to the first element of a c-style array. > That is why it is important to preallocate vectors to the expected length > when possible, to avoid the reallocation hit necessary to preserve > contiguous memory. std::deque has similar accessors, but is not > contiguous, so reallocation is much cheaper, but you cant use as a > c-array. > > It's not a hack, it's documented and legal behavior. >
This behavior is not mandated by the standard, but there is a resolution proposing it be made so (for all types other than bool): http://www.open-std.org/JTC1/SC22/WG21/docs/lwg-defects.html#69 --"J" _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
