diff options
Diffstat (limited to 'raul/RDFWriter.h')
| -rw-r--r-- | raul/RDFWriter.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/raul/RDFWriter.h b/raul/RDFWriter.h index 1cbccaa..81bd230 100644 --- a/raul/RDFWriter.h +++ b/raul/RDFWriter.h @@ -37,7 +37,7 @@ public: Type type() const { return _type; } const std::string& to_string() const { return _string; } - operator bool() { return (_type != NULL_ID); } + operator bool() const { return (_type != NULL_ID); } private: Type _type; |