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Signed to unsigned conversion in C - is it always safe?
...implementation-defined or an implementation-defined signal is raised.
Now we need to refer to (2) above. Your i will be converted to an unsigned value by adding UINT_MAX + 1. So the result will depend on how UINT_MAX is defined on your implementation. It will be large, but it will not overflow,...
Is it better to call ToList() or ToArray() in LINQ queries?
... make it into Gen 2 then you may be better off paying the extra allocation now vs polluting the Gen 2 heap. IME though I rarely see this. It's much more common to see ToArray being passed immediately to another short lived LINQ query.
– JaredPar
May 1 '13 at 1...
Entity Attribute Value Database vs. strict Relational Model Ecommerce
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+10000 Great answer. Nowadays people skimp on database design and requirement gathering. They'd rather write a hundred times more lines of code, that take the time to make a good design.
– Tulains Córdova
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Can multiple different HTML elements have the same ID if they're different elements?
...s. Everyone seems to cite how would selectors work, well if your going in knowing you'll have conflicting IDs, you use your selectors with a parent, where the IDs under the parent would be unique. eg $('div#car span#size) and $('div#truck span#size').
– BJury
J...
Pretty printing JSON from Jackson 2.2's ObjectMapper
Right now I have an instance of org.fasterxml.jackson.databind.ObjectMapper and would like to get a String with pretty JSON. All of the results of my Google searches have come up with Jackson 1.x ways of doing this and I can't seem to find the proper, non-deprecated way of doing this with 2.2. E...
git push says “everything up-to-date” even though I have local changes
...I am in a detached head state, merged my changes, committed my changes and now I want to push this to Master and can't - tells me "everything up to date". But I am following the instructions provided my Gitlab: Step 1: git fetch origin git checkout -b "nodeAPI" "origin/nodeAPI" Step 2. Review the ...
What is the perfect counterpart in Python for “while not EOF”
...'t ever have EOF until I kill the process. But then I reach the "end up to now" and I deadlock. How do I detect this and not deadlock? Like if there are no new lines, stop reading the files (even if there isn't an EOF, which in my case will never exist).
– Charlie Parker
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Are Exceptions in C++ really slow
...th a taxi waiting, so I only had time then for a short comment. But having now commented and upvoted and downvoted I’d better add my own answer. Even if Matthieu’s answer already is pretty good.
Are exceptions especially slow in C++, compared to other languages?
Re the claim
“I was wat...
What is the difference between the 'COPY' and 'ADD' commands in a Dockerfile?
....gz DOES NOT EXTRACT the archive to the filesystem (I double checked right now to be sure and it's confirmed)
– Cecile
Oct 19 '18 at 15:19
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How do MySQL indexes work?
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The first thing you must know is that indexes are a way to avoid scanning the full table to obtain the result that you're looking for.
There are different kinds of indexes and they're implemented in the storage layer, so there's no standard between t...