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-rw-r--r--Source/cmStringCommand.cxx16
1 files changed, 14 insertions, 2 deletions
diff --git a/Source/cmStringCommand.cxx b/Source/cmStringCommand.cxx
index f746f82..7ef39af 100644
--- a/Source/cmStringCommand.cxx
+++ b/Source/cmStringCommand.cxx
@@ -675,8 +675,20 @@ bool cmStringCommand::HandleStripCommand(
++ ptr;
}
- size_t outLength = endPos - startPos + 1;
-
+ size_t outLength = 0;
+
+ // if the input string didn't contain any non-space characters, return
+ // an empty string
+ if (startPos > inStringLength)
+ {
+ outLength = 0;
+ startPos = 0;
+ }
+ else
+ {
+ outLength=endPos - startPos + 1;
+ }
+
this->Makefile->AddDefinition(variableName.c_str(),
stringValue.substr(startPos, outLength).c_str());
return true;