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Exporting functions from a DLL with dllexport
...l the C++isms (namespaces etc...). You can compile your code as C by going into your project settings under C/C++->Advanced, there is an option "Compile As" which corresponds to the compiler switches /TP and /TC.
If you still want to use C++ to write the internals of your lib but export some func...
right click context menu for datagridview
...enuItem("Copy"));
m.MenuItems.Add(new MenuItem("Paste"));
int currentMouseOverRow = dataGridView1.HitTest(e.X,e.Y).RowIndex;
if (currentMouseOverRow >= 0)
{
m.MenuItems.Add(new MenuItem(string.Format("Do something to row {0}", currentMouseOverRow.ToSt...
Storing sex (gender) in database
...umber/Range of Values
------------------------------------------------
TinyINT 1 255 (zero to 255)
INT 4 - 2,147,483,648 to 2,147,483,647
BIT 1 (2 if 9+ columns) 2 (0 and 1)
CHAR(1) 1 26 if case insensitive, 52 otherwise...
Are there any downsides to passing structs by value in C, rather than passing a pointer?
...re any downsides to passing structs by value in C, rather than passing a pointer?
10 Answers
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Downcasting in Java
...ll be disallowed at compile time, because they will never succeed at all:
Integer i = getSomeInteger();
String s = (String) i; // the compiler will not allow this, since i can never reference a String.
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Find the most frequent number in a numpy vector
...
If your list contains all non-negative ints, you should take a look at numpy.bincounts:
http://docs.scipy.org/doc/numpy/reference/generated/numpy.bincount.html
and then probably use np.argmax:
a = np.array([1,2,3,1,2,1,1,1,3,2,2,1])
counts = np.bincount(a)
print(n...
What is an example of the Liskov Substitution Principle?
...class; this seems perfectly logical. However if your Rectangle reference pointed to a Square, then SetWidth and SetHeight doesn't make sense because setting one would change the other to match it. In this case Square fails the Liskov Substitution Test with Rectangle and the abstraction of having Squ...
Calling constructors in c++ without new
...t reason. Of course it is possible that creating of the first instance is intentional for some side effects, but that's even worse (stylistically).
– MK.
Apr 27 '10 at 16:16
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How do getters and setters work?
...is if you call someObj.getTime().setHour(5) it should not affect someObj's internal state. Also setters and getters (accessors and mutators by their fancier name) have a very strict method signature meaning that getter doesn't have any parameters. Methods in general should only do one thing anyway.
...
'size_t' vs 'container::size_type'
..." At the time, size_t was the bet practical implementation of those constraints. However, in C++11, it is now defined essentially as: std::make_unsigned<X::difference_type>::type by default. Which in practice, will probably be the same or compatible with size_t.
– Evan Te...