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Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
Why do Scala and frameworks like Spark and Scalding have both reduce and foldLeft ? So then what's the difference between reduce and fold ?
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Any way to Invoke a private method?
I have a class that uses XML and reflection to return Object s to another class.
7 Answers
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Why does GCC generate such radically different assembly for nearly the same C code?
While writing an optimized ftol function I found some very odd behaviour in GCC 4.6.1 . Let me show you the code first (for clarity I marked the differences):
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Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
Every time I mention slow performance of C++ standard library iostreams, I get met with a wave of disbelief. Yet I have profiler results showing large amounts of time spent in iostream library code (full compiler optimizations), and switching from iostreams to OS-specific I/O APIs and custom buffer...
Test if object implements interface
This has probably been asked before, but a quick search only brought up the same question asked for C#. See here.
7 Answer...
How to add extra info to copied web text
Some websites now use a JavaScript service from Tynt that appends text to copied content.
8 Answers
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Sending images using Http Post
I want to send an image from the android client to the Django server using Http Post. The image is chosen from the gallery. At present, I am using list value name Pairs to send the necessary data to the server and receiving responses from Django in JSON. Can the same approach be used for images (wit...
How to convert a number to string and vice versa in C++
Since this question gets asked about every week, this FAQ might help a lot of users.
4 Answers
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How to bind an enum to a combobox control in WPF?
I am trying to find a simple example where the enums are shown as is. All examples I have seen tries to add nice looking display strings but I don't want that complexity.
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Which timestamp type should I choose in a PostgreSQL database?
I would like to define a best practice for storing timestamps in my Postgres database in the context of a multi-timezone project.
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