By the way, also improve the check for when the pac_expectation is used two
times on the same model.

– New “heterogeneity_dimension” statement
– New option “heterogeneity” to “var”, “varexo”, “parameters”, “model” and
  “shocks” statements
– New “SUM()” operator in “model” block

std::fill takes a range that is open on the right bound (i.e. [first, last) and
not [first, last]).

Ref. #125

The vector of lower and upper bounds is now provided by
{static,dynamic}_complementarity_conditions.m (which accepts parameters as an
argument, in preparation for the possibility of having parameters in
complementarity conditions).

The index that denotes the reordering of equation residuals (so that the
residual of an equation appears at the index of the endogenous appearing in the
complementarity condition) is now in “M_.{static,dynamic}_mcp_equations_reordering”.

Constraints declared through the ramsey_constraints block are also incorporated
in this new interface (and therefore “M_.ramsey_model_constraints” has been
removed).

By the way, also improve the terminology used in variable and method names: a
“constraint” is something like “ZLB” or “INEG”, a regime is a state in which
constraints are either binding or relaxed.

Really closes: #103

In particular, emit more explicit error messages in the presence of
inconsistencies.

Closes: #103

Automatically detected by clang-tidy with performance-move-const-arg check.

Do not make the modification for Tokenizer::location type, since we have no
guarantee that the type will remain trivially-copyable in the future.

Automatically detected by clang-tidy using the performance-faster-string-find
check.

Automatically detected using clang-tidy with modernize-loop-convert check.

Automatically detected using clang-tidy with modernize-use-emplace check.

NB: does not (yet) works with Occbin regime-specific equations.

Ref. dynare#1890

Incidentally, makes tag names case-insensitive in “model_replace” and
“model_remove”, which is consistent with tag declarations.

It maps column indices in the Jacobian returned by bytecode MEX in evaluate
mode (which only contains nonzero columns, but also incorporate recursive
variables), into column indices in the sparse representation (which has 3×n
columns for two-boundaries blocks and n columns for one-boundary blocks).
Columns unused in the sparse representation are indicated by a zero.

When parsing the FSTPG{2,3} opcodes, the bytecode MEX internally constructs a
Jacobian with as many lines as feedback variables. But the preprocessor would
also output instructions for filling derivatives of equations corresponding to
recursive variables in the “evaluate” mode, thus leading to memory corruption
in the bytecode MEX.

Currently defaults to 0.

This is a restoration of the behaviour that was present in 5.x.

Those models do not have as many variables as equations, and this case is not
supported by bytecode.

The present commit is an improvement over commit
a8ea57dd, which had already removed bytecode
for the planner objective model.

The preprocessor would try to write bytecode for the planner objective. But
bytecode only works when there are as many endogenous as equations, which is
not the case for the PlannerObjective object derived from StaticModel.