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-rw-r--r--Source/cmStringCommand.cxx2
1 files changed, 1 insertions, 1 deletions
diff --git a/Source/cmStringCommand.cxx b/Source/cmStringCommand.cxx
index eacbfed..aa24a02 100644
--- a/Source/cmStringCommand.cxx
+++ b/Source/cmStringCommand.cxx
@@ -555,7 +555,7 @@ bool cmStringCommand::HandleSubstringCommand(std::vector<std::string> const& arg
return false;
}
int leftOverLength = intStringLength - begin;
- if ( end < 0 || end > intStringLength )
+ if ( end < 0 || end > leftOverLength )
{
cmOStringStream ostr;
ostr << "end index: " << end << " is out of range " << 0 << " - " << leftOverLength;