our policy is that we only use boost if necessary, i.e., if the oldest
supported compiler does not support a given feature but boost
does. since we recently switched to GCC 4.4 or newer, std::shared_ptr
is available unconditionally.
Notice that this definition specifies a superset of the actual format
as the ParameterGroup tag is context-dependent (which cannot be captured
by DTD schemata).
Disabled by default, this statement attempted to pass a std::istream to
function std::fclose() which is meaningless and should not be enabled at
any time--even for a MATLAB-related build.
This is useful if a set of parameters can all be defaulted in which
case launching the executable *should* be a simple as
./a.out
but the constructor requirement leads to using
./a.out a=b
or something similar.
