object oriented - What does mapping mean in programming?
The programming uses of the verb "map" and the noun "mapper" are largely unrelated to their common uses in English, so this is a very understandable question. The programming use is also very broad, so let's start with the most concrete and well-defined meaning of "map".
mind map for programmers - Software Engineering Stack Exchange
Mind Map => UML. You can start with mind mapping. The generic, ill-structured mind-mapping techniques are fine to get started, but, largely useless and confusing. Use UML diagrams instead of mind-mapping diagrams. Focus on particular views or aspects of the system: Use Case diagrams are first-class mind maps of the actors use cases.
algorithms - Divide the world map into fixed sized blocks
2016年1月22日 · You can't map the surface of a sphere onto a plane square grid, whilst at the same time preserving distance, area and angles - there has to be some sort of compromise. See here for more details. If you really want "equal sized elements", a better solution might be to use a spherical co-ordinate system - latitude and longitude with elements of ...
c++ - Is there a standard technique to implement command line …
2020年6月9日 · Is there a standard way to parse and implement these options? A simple way would be to clean the input and use a map to convert it to an integer and use a switch statement in the main.cpp. But that strikes me as leading to a bloated main.cpp. How do other command line tools, like vim, sed etc. deal with interpreting options?
How to share memory between applications written in C/C++
2015年4月15日 · I'm going through a program written in C/C++ for control in robotics. Basically, three different programs run at the same time, and they communicate via shared memory. Google-ling around I found thinks like vxWorks and the boost libraries interprocess headers (Boost documentation: Sharing memory between processes).
Are data type declarators like "int" and "char" stored in RAM when …
2015年8月7日 · So, how does your program figure out the right thing to do? Consider this code: int x = 4; x = x + 5; We have a read and a write here. When your program reads x from memory, it finds 0x00000004 there. And your program knows to add 0x00000005 to it. And the reason your program 'knows' this is a valid operation, is because the compiler ensures ...
How to refactor an OO program into a functional one?
The most advanced topic I could find discussed online was using structural typing to cut down on class hierarchies; most just deal with how to use map/fold/reduce/etc to replace imperative loops. What I would really like to find is an in-depth discussion of an OOP implementation of a non-trivial program, its limitations, and how to refactor it ...
clean code - Private string constants for map keys - Software ...
2016年3月25日 · Just put them in the map, directly. You might be mapping to a table in a database, for instance, and may never need to refer to the map directly in code. If the strings are going to be used elsewhere in the program to look up items from the map, then yes, you need string constants.
c# - Mapping exceptions to error response - Software Engineering …
2018年2月7日 · In the program, we don't have to care if we expose a REST service or a SOAP service or whatever. Simply throw an exception, it will be handled correctly later. The caller gets enough and correct information if something goes wrong (as long as the exceptions have meaningful names and information). Logging can also be centralised.
algorithms - Computing the shortest path in a labyrinth - Software ...
2018年1月16日 · I'm currently trying to map how to make a good algorithm that won't have issues to find the shortest path. The labyrinth consists of an X and Y dimensions as input; However, the labyrinth will generate obstacles within the dimensions and randomly spawned. There is one entrance and at least one exit after finding the shortest path.