From c77933646817f5f12becaab33003f7f3ec68a379 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Villemot?= <sebastien@dynare.org>
Date: Mon, 3 Feb 2014 16:22:42 +0100
Subject: [PATCH] Exit gracefully if an external function name is used as a
model local variable.
Closes #599
(cherry picked from commit 535af2d536bda159d3b3820b77e94c9f07ceaf88)
---
preprocessor/ParsingDriver.cc | 3 +++
1 file changed, 3 insertions(+)
diff --git a/preprocessor/ParsingDriver.cc b/preprocessor/ParsingDriver.cc
index ddaff0275..5e519491b 100644
--- a/preprocessor/ParsingDriver.cc
+++ b/preprocessor/ParsingDriver.cc
@@ -342,6 +342,9 @@ ParsingDriver::add_expression_variable(string *name)
|| mod_file->symbol_table.getType(*name) == eLogTrend)
error("Variable " + *name + " not allowed outside model declaration, because it is a trend variable.");
+ if (mod_file->symbol_table.getType(*name) == eExternalFunction)
+ error("Symbol '" + *name + "' is the name of a MATLAB/Octave function, and cannot be used as a variable.");
+
int symb_id = mod_file->symbol_table.getID(*name);
expr_t id = data_tree->AddVariable(symb_id);
--
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