From 8cac64c1cbef2b3a55bb539ffbb429ff1f58939a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Villemot?= <sebastien@dynare.org>
Date: Fri, 7 Oct 2022 17:51:10 +0200
Subject: [PATCH] use_dll: fix bug where operator abs() within a .mod file
would return an incorrect result
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It would compute the *integer* part of the absolute value (calling “abs”
instead of “fabs” from the C source).
---
src/ExprNode.cc | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/ExprNode.cc b/src/ExprNode.cc
index 3159204b..f2d585b8 100644
--- a/src/ExprNode.cc
+++ b/src/ExprNode.cc
@@ -2824,7 +2824,10 @@ UnaryOpNode::writeOutput(ostream &output, ExprNodeOutputType output_type,
output << "cbrt";
break;
case UnaryOpcode::abs:
- output << "abs";
+ if (isCOutput(output_type))
+ output << "fabs";
+ else
+ output << "abs";
break;
case UnaryOpcode::sign:
if (output_type == ExprNodeOutputType::CDynamicModel || output_type == ExprNodeOutputType::CStaticModel)
--
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