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C++ equivalent of java's instanceof
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This is not good oo design, but it can be a workaround and its cost is more or less only a virtual function call. It also works regardless of RTTI is enabled or not.
Note that this approach doesn't support multiple levels of inheritance so if you're not careful you might end with code looking l...
How to see the changes in a Git commit?
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I feel like git show is more appropriate for this question and should be the suggestion mentioned first.
– pypmannetjies
Oct 12 '16 at 12:00
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Launching Google Maps Directions via an intent on Android
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How do I convert a NSString into a std::string?
...nly 4 years and a few weeks I went around to expand my answer. I hope it's more acceptable now.
– JustSid
Mar 17 '16 at 20:00
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Reference alias (calculated in SELECT) in WHERE clause
...o ahead and compare the plans; you'll see they're identical. If you have a more complex case where you see the expression evaluated multiple times, please post the more complex query and the plans.
Here are 5 example queries that all yield the exact same execution plan:
SELECT LEN(name) + column_i...
Help with C# generics error - “The type 'T' must be a non-nullable value type”
...he Nullable class that is the root cause of the error, so this is actually more helpful that if the compiler just pointed to your function and said "this ain't right, fix it!" (Imagine if CoalesceMax used several generics, and violated the constraint on only one of them - it's more useful to know wh...
Retrieve the commit log for a specific line in a file?
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Is there a reason for C#'s reuse of the variable in a foreach?
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tooltips for Button
...tom right of the screen then the tooltip scrambles over the mouse pointer. More generally: the position of the tip isn't smart sometimes... but I guess that's just the browsers then.
– gideon
Jul 21 '17 at 6:21
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What is the proper REST response code for a valid request but an empty data?
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