OR-Tools  8.2
Namespace List
Here is a list of all namespaces with brief descriptions:
[detail level 1234]
 Nabsl
 NEncodingUtils
 Nfile
 Ngoogle
 Ngtl
 Ninternal
 Noperations_researchThe vehicle routing library lets one model and solve generic vehicle routing problems ranging from the Traveling Salesman Problem to more complex problems such as the Capacitated Vehicle Routing Problem with Time Windows
 Nrecordio
 NstdSTL namespace
 Nutil
 Nutil_hash
 Nutil_time