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What is the point of noreturn?
...n your example).
This can be used by compilers to make some optimizations and generate better warnings. For example if f has the noreturn attribute, the compiler could warn you about g() being dead code when you write f(); g();. Similarly the compiler will know not to warn you about missing return ...
Get boolean from database using Android and SQLite
How can I obtain the value of a boolean field in an SQLite database on Android?
10 Answers
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Swapping column values in MySQL
I have a MySQL table with coordinates, the column names are X and Y. Now I want to swap the column values in this table, so that X becomes Y and Y becomes X. The most apparent solution would be renaming the columns, but I don't want to make structure changes since I don't necessarily have permission...
What is the combinatory logic equivalent of intuitionistic type theory?
...tution), it'll be handy to represent intermediate stages in the process of converting terms with binding to their combinatory form.
Here's normalization:
norm :: Unty a -> Unty a
norm (f :. a) = norm f $. a
norm c = c
($.) :: Unty a -> Unty a -> Unty a -- requires first a...
What is the difference between exit() and abort()?
In C and C++, what is the difference between exit() and abort() ? I am trying to end my program after an error (not an exception).
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What is the canonical way to check for errors using the CUDA runtime API?
Looking through the answers and comments on CUDA questions, and in the CUDA tag wiki , I see it is often suggested that the return status of every API call should checked for errors. The API documentation contains functions like cudaGetLastError , cudaPeekAtLastError , and cudaGetErrorString , b...
How to create a release signed apk file using Gradle?
...he original/default as I use above. They then go on telling you you should convert to the new open PKCS12 format. However, it seem that the Android development tools are not quite ready for this yet, because if you do, you will get the following weird errors:
com.android.ide.common.signing.Keyto...
Spring - @Transactional - What happens in background?
...hapters to it. I recommend reading the ones on Aspect-Oriented Programming and Transactions, as Spring's declarative transaction support uses AOP at its foundation.
But at a very high level, Spring creates proxies for classes that declare @Transactional on the class itself or on members. The proxy ...
What is the worst gotcha in C# or .NET? [closed]
I was recently working with a DateTime object, and wrote something like this:
61 Answers
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Add a column with a default value to an existing table in SQL Server
... (0)--Optional Default-Constraint.
WITH VALUES --Add if Column is Nullable and you want the Default Value for Existing Records.
Notes:
Optional Constraint Name:
If you leave out CONSTRAINT D_SomeTable_SomeCol then SQL Server will autogenerate
a Default-Contraint with a funny Name like: DF__...