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Why is printing to stdout so slow? Can it be sped up?
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I ran your file writing test on my machine, and with buffering, it also 0.05s here for 100,000 lines.
However, with the above modifications to write unbuffered, it takes 40 seconds to write only 1,000 lines to disk. I gave up waiting for 100,000 lines to write, but extrapolating from the previous,...
Creating a blocking Queue in .NET?
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answered Feb 9 '09 at 22:05
Marc Gravell♦Marc Gravell
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Unioning two tables with different number of columns
...nd followed above answer. But mismatch in the Order of data type caused an error. The below description from another answer will come handy.
Are the results above the same as the sequence of columns in your table? because oracle is strict in column orders. this example below produces an error:
cre...
How do you disable the unused variable warnings coming out of gcc in 3rd party code I do not wish to
...ass to the gcc compiler to turn off unused variable warnings? I'm getting errors out of boost on windows and I do not want to touch the boost code:
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Covariance and contravariance real world example
...iantly as a mammal hat…
IHat<Mammal> mHat = rHat; // Compiler error
// …because…
mHat.hide(new Dolphin()); // Hide a dolphin in a rabbit hat??
// It also cannot be treated contravariantly as a cottontail hat…
IHat<CottonTail> cHat = rHat; // Compiler error
// …becau...
How to add custom method to Spring Data JPA
...t working. When I try and do something similar I end up with an exception: Error creating bean with name 'accountRepositoryImpl': Bean with name 'accountRepositoryImpl' has been injected into other beans [accountRepository] in its raw version as part of a circular reference, but has eventually been ...
Can an Android Toast be longer than Toast.LENGTH_LONG?
When using setDuration() for a Toast, is it possible to set a custom length or at least something longer than Toast.LENGTH_LONG ?
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Logical operators for boolean indexing in Pandas
...as Series do not have a boolean value -- in other words, they raise
ValueError: The truth value of an array is ambiguous. Use a.empty, a.any() or a.all().
when used as a boolean value. That's because its unclear when it should be True or False. Some users might assume they are True if they have ...
How can you make a custom keyboard in Android?
...custom keyboard view MyKeyboard. (We will add this code soon so ignore the error for now.) The benefit of putting all of our keyboard code into a single view is that it makes it easy to reuse in another activity or app.
res/layout/activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<...
Variable number of arguments in C++?
...would be variadic functions although they are not type-safe and in general error prone and can be unsafe to use but the only other potential alternative would be to use default arguments, although that has limited use. The example below is a modified version of the sample code in the linked referenc...