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C++: What is the size of an object of an empty class?
...en though its not required to assign any memory for an empty class, but in order to make objects of empty classes, compiler assigns the minimum memory that can be assigned, which is 1 byte. This way compiler can distinguish two objects of the same empty class uniquely, and will able to assign the ad...
How to mock void methods with Mockito
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Adding to what @sateesh said, when you just want to mock a void method in order to prevent the test from calling it, you could use a Spy this way:
World world = new World();
World spy = Mockito.spy(world);
Mockito.doNothing().when(spy).methodToMock();
When you want to run your test, make sure you ...
Changing navigation bar color in Swift
...far off with what I was trying but I didn't quite have things in the right order.
– user3746428
Jul 10 '14 at 22:59
I'...
Signed to unsigned conversion in C - is it always safe?
...hort Answer
Your i will be converted to an unsigned integer by adding UINT_MAX + 1, then the addition will be carried out with the unsigned values, resulting in a large result (depending on the values of u and i).
Long Answer
According to the C99 Standard:
6.3.1.8 Usual arithmetic conversions...
'const int' vs. 'int const' as function parameters in C++ and C
...e same, although a little more explanation of the pointer case might be in order.
"const int* p" is a pointer to an int that does not allow the int to be changed through that pointer. "int* const p" is a pointer to an int that cannot be changed to point to another int.
See https://isocpp.org/wiki...
javax vs java package
...kages, meaning that programmers using the Java language had to use them in order to make any worthwhile use of the java language.
javax.* packages are optional packages, which provides a standard, scalable way to make custom APIs available to all applications running on the Java platform.
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XPath - Selecting elements that equal a value
.... defines the string value of an element as the concatenation (in document order) of all of its text-node descendents.
This explains the "strange results".
"Better" results can be obtained using the expressions below:
//*[text() = 'qwerty']
The above selects every element in the document that ...
jQuery get mouse position within an element
...could click inside a div, then drag the mouse, then let up on the mouse in order to indicate how long they want something to be. (This is for a calendar control, so the user will be indicating the length, in time, of a certain event)
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How to Convert all strings in List to lower case using LINQ?
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var _reps = new List(); // with variant data
_reps.ConvertAll<string>(new Converter<string,string>(delegate(string str){str = str.ToLower(); return str;})).Contains("invisible"))
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How to convert an int to string in C?
...as optimized as it gets. At least you could be 100% sure you would not get orders of magnitude downgrade of a generic sprintf. It would be nice to see whatever counterexample you have in mind, with compiler version and settings.
– Eugene Ryabtsev
Sep 30 '15 at ...