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One-liner to check whether an iterator yields at least one element?
... iterator in case any_check ever needs to advance. This is worse than just converting the original iterator to a list.
– Rafał Dowgird
Mar 3 '11 at 8:54
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How to add dividers and spaces between items in RecyclerView?
...uld have been done previously in the ListView class, using the divider and dividerHeight parameters:
41 Answers
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How do I put two increment statements in a C++ 'for' loop?
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A common idiom is to use the comma operator which evaluates both operands, and returns the second operand. Thus:
for(int i = 0; i != 5; ++i,++j)
do_something(i,j);
But is it really a comma operator?
Now having wrote that, a commenter suggested it was actually some special syntactic su...
Disable JavaScript error in WebBrowser control
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This disables the script errors and also disables other windows.. such as the NTLM login window or the client certificate accept window. The below will suppress only javascript errors.
// Hides script errors without hiding other dialog boxes.
private voi...
Can table columns with a Foreign Key be NULL?
... you can clearly indicate that this row is not to be used as a normal row, and can use the row as a way of providing a sort of dynamic default value for other rows.
– Ouroborus
Feb 21 '17 at 17:57
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How do Python functions handle the types of the parameters that you pass in?
...tely use an object of a type "as if" it was an object of a different type, and all elementary operations on the object are delegated to its type.
This has nothing to do with names. A name in Python doesn't "have a type": if and when a name's defined, the name refers to an object, and the object do...
How does virtual inheritance solve the “diamond” (multiple inheritance) ambiguity?
I understand the diamond problem, and above piece of code does not have that problem.
5 Answers
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Multiple cases in switch statement
...ld use some if's (or a table lookup) to reduce the input to a set of enums and switch on the enum.
– Harvey
Jul 28 '13 at 20:00
5
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In C++, is it still bad practice to return a vector from a function?
...d Jun 28 '10 at 17:55
Peter AlexanderPeter Alexander
49.1k1010 gold badges111111 silver badges161161 bronze badges
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Why is argc not a constant?
...this case, history is a factor. C defined these inputs as "not constant", and compatibility with (a good portion of) existing C code was an early goal of C++.
Some UNIX APIs, such as getopt, actually do manipulate argv[], so it can't be made const for that reason also.
(Aside: Interestingly, al...