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Why not infer template parameter from constructor?
my question today is pretty simple: why can't the compiler infer template parameters from class constructors, much as it can do from function parameters? For example, why couldn't the following code be valid:
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Why is f(i = -1, i = -1) undefined behavior?
...d in any order and may overlap (within a single thread of execution, the
compiler may interleave the CPU instructions that comprise A and B)
evaluations of A and B are indeterminately-sequenced: they may be performed in any order but may not overlap: either A will be complete
before B, or B w...
Accessing MVC's model property from Javascript
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How to use Git and Dropbox together effectively?
...think that Git on Dropbox is great. I use it all the time. I have multiple computers (two at home and one at work) on which I use Dropbox as a central bare repository. Since I don’t want to host it on a public service, and I don’t have access to a server that I can always SSH to, Dropbox takes c...
Java generics type erasure: when and what happens?
...he constraints are etc. But when generics are used, they're converted into compile-time checks and execution-time casts. So this code:
List<String> list = new ArrayList<String>();
list.add("Hi");
String x = list.get(0);
is compiled into
List list = new ArrayList();
list.add("Hi");
St...
What is a 'Closure'?
...n scope when we later call the function, even if we call the function in a completely different context.
For example
Here's a really simple example in JavaScript that illustrates the point:
outer = function() {
var a = 1;
var inner = function() {
console.log(a);
}
return inner; // thi...
How do you maintain development code and production code? [closed]
...flow. The history of doing this vs Trunk-Based-Development is noted in the comments and discussions of this article by Adam Dymitruk.
(source: Gitworkflow: A Task-Oriented Primer)
Note: in that distributed workflow, you can commit whenever you want and push to a personal branch some WIP (Work ...
How to call an external command?
How do you call an external command (as if I'd typed it at the Unix shell or Windows command prompt) from within a Python script?
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What are enums and why are they useful?
...n").
If you use enums instead of integers (or String codes), you increase compile-time checking and avoid errors from passing in invalid constants, and you document which values are legal to use.
BTW, overuse of enums might mean that your methods do too much (it's often better to have several sepa...
SQL Server insert if not exists best practice
I have a Competitions results table which holds team member's names and their ranking on one hand.
8 Answers
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