From d008113d69137b4600e61758df1721c534c6a9c1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Villemot?= <sebastien@dynare.org>
Date: Wed, 27 Nov 2019 17:26:16 +0100
Subject: [PATCH] Forbid exogenous and exogenous deterministic variables in
STEADY_STATE operator
Closes: dynare#825
---
src/ParsingDriver.cc | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/ParsingDriver.cc b/src/ParsingDriver.cc
index 0aea25ad..58c1902f 100644
--- a/src/ParsingDriver.cc
+++ b/src/ParsingDriver.cc
@@ -2902,6 +2902,15 @@ ParsingDriver::add_erf(expr_t arg1)
expr_t
ParsingDriver::add_steady_state(expr_t arg1)
{
+ // Forbid exogenous variables, see dynare#825
+ set<int> r;
+ arg1->collectVariables(SymbolType::exogenous, r);
+ if (r.size() > 0)
+ error("Exogenous variables are not allowed in the context of the STEADY_STATE() operator.");
+ arg1->collectVariables(SymbolType::exogenousDet, r);
+ if (r.size() > 0)
+ error("Exogenous deterministic variables are not allowed in the context of the STEADY_STATE() operator.");
+
return data_tree->AddSteadyState(arg1);
}
--
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