If a key is not found in a map, operator[] default-constructs an element and returns its reference
If a key is not found in a map, operator[] default-constructs an element and returns its reference

LibreOffice/libvisio,sdteffen/libvisio,LibreOffice/libvisio,sdteffen/libvisio,sdteffen/libvisio,LibreOffice/libvisio,sdteffen/libvisio