.TH "md_doc_help_elektra-values" 3elektra "Sun May 29 2016" "Version 0.8.14" "Elektra" \" -*- nroff -*- .ad l .nh .SH NAME md_doc_help_elektra-values \- elektra-values(7) -- values of elektra keys In Elektra string-keys are preferred\&. Nevertheless, binary keys, i\&.e\&. strings with null-characters embedded are possible\&. .PP Sometimes a key does not exist at all\&. When using \fBksLookup()\fP you will get a null pointer\&. In the C++ Binding the null pointer is wrapped in a key\&. Thus this is also sometimes called \fBNULL KEYS\fP\&. .PP .SS "NULL VALUES" .PP Null values are binary values without content\&. They are the only keys that have the size 0\&. .PP Null values are always binary values\&. .PP .SS "EMPTY VALUES" .PP Empty values point to a string that only contains a null byte\&. .PP Empty values are possible for both string and binary values\&.