From 931ea41f187a452f3ad6a2355e552b6710fbd41e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Villemot?= <sebastien@dynare.org>
Date: Tue, 12 Aug 2014 19:30:09 +0200
Subject: [PATCH] Fix substring operator in macro-processor.
The characters of the substring could be mixed with random characters from the
memory space. Thanks to Tom Holden for reporting the bug.
Closes #708
---
preprocessor/macro/MacroValue.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/preprocessor/macro/MacroValue.cc b/preprocessor/macro/MacroValue.cc
index 65b3fc39dd..3dfab32331 100644
--- a/preprocessor/macro/MacroValue.cc
+++ b/preprocessor/macro/MacroValue.cc
@@ -387,7 +387,7 @@ StringMV::operator[](const MacroValue &mv) const throw (TypeError, OutOfBoundsEr
if (*it < 1 || *it > (int) value.length())
throw OutOfBoundsError();
char c = value.at(*it - 1);
- result.append(&c);
+ result.append(1, c);
}
return new StringMV(driver, result);
}
--
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