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hello guys. I'm a beginer in Ros. I read lots of " :: " . ex) ros::init(argc, argv, "talker"); what's the exact meaning of ::? plz... Im really suffering from it. and do you think it's better to use c++ than python? can you recommand?
Technically, your question is a C++ question, not a ROS question, and we should be closing this.
But just to point you in the right direction: the double colon (::) you see in C++ source code is called the scope resolution operator. It is used to tell the compiler in which scope the identifier (ie: name of something) that follows can be found.
If you search for "C++ scope resolution operator" you will probably find more than enough information about this (Wikipedia also has a page about it: wikipedia.org/Scope_resolution_operator).
Asked: 2018-11-30 06:28:55 -0500
Seen: 835 times
Last updated: Nov 30 '18
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