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How to convert a std::string to const char* or char*?
...tation will need to do some extra memory allocation and/or data copying in order to prepare the NUL terminated buffer
As a further hint, if a function's parameters require the (const) char* but don't insist on getting x.size(), the function probably needs an ASCIIZ input, so .c_str() is a good cho...
Why does one use dependency injection?
...about what would happen if B needed some parameters in its constructor: in order to instantiate it, A would have to know about those parameters, something that might be completely unrelated to A (it just wants to depend on B, not on what B depends on). Passing an already constructed B (or any subcla...
Eclipse Workspaces: What for and why?
...onvenience of auto-complete and the view of your libraries (and docs ) in order to avoid syntax errors to say at least. In no circumstance you would jeopardize this functionality.
– Lazaros Kosmidis
May 7 '16 at 16:05
...
Why can't I initialize non-const static member or static array in class?
... static const A b = A(); is not allowed and must be constexpr or inline in order to permit an initialiser for a static object with class type i.e to make a static member of class type more than a declaration. So yes in certain situations A a; is not the same as explicitly initialising A a = A(); (th...
Is there a way to change the spacing between legend items in ggplot2?
...position = "left", title.vjust = 1,
# draw border around the legend
frame.colour = "black",
barwidth = 15,
barheight = 1.5))
For vertical legends, settinglegend.key.size...
Understanding typedefs for function pointers in C
...fined by their return value and the types of parameters they accept. So in order to fully describe a function, you must include its return value and the type of each parameter is accepts.
When you typedef such a definition, you give it a 'friendly name' which makes it easier to create and reference ...
JSP tricks to make templating easier?
...
Note - it seems the order of tags is important; jsp:attribute must come before jsp:body or you'll get an error. Also I had to set a corresponding @attribute tag to match jsp:invoke to avoid another error. Using GlassFish 3.2.2
...
Deploying my application at the root in Tomcat
...p in two ways: http://example.com/ and http://example.com/APP/
Step 3:
In order to prevent unwanted access to the root and manager folder, add a valve to those context tags like this:
<Context path="/manager" docBase="manager" privileged="true">
<WatchedResource>WEB-INF/web.xml<...
What is the difference between NTFS Junction Points and Symbolic Links?
...n a path is parsed in an open, the system remembers traversed junctions in order to evaluate relative symlinks that traverse mount points. These traversals need to handle a junction as if it's a regular directory, whereas a symlink is parsed as its target path. For example, say "C:\junction" and "C:...
What are the differences between NP, NP-Complete and NP-Hard?
...ner. Decidable problems have to result in a definitive yes or no answer in order to be considered to be decidable. The Halting Problem does not have a definitive yes or now answer since an arbitrary answer might throw any solution into a loop.
– rjzii
Dec 13 '0...
