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Reflection: How to Invoke Method with parameters
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Change "methodInfo" to "classInstance", just like in the call with the null parameter array.
result = methodInfo.Invoke(classInstance, parametersArray);
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Is it possible to disable the network in iOS Simulator?
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Network Link Conditioner allows you to specify a percentage of packets to be dropped, but as far as I've seen there's unfortunately no way to disable all connectivity.
– modocache
Apr 9 '12 at 8:57
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How to Parse Command Line Arguments in C++? [duplicate]
...ocumentation for boost::program_options could be more complete. It is specially difficult to find out how to use files to keep the options, a critical feature.
– gatopeich
Jun 16 '11 at 10:59
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GIT repository layout for server with multiple projects
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The idea is not to store everything in one giant git repo, but build a small repo as a main project, which will reference the right commits of other repos, each one representing a project or common component of its own.
The OP Paul Alexander comments:
This sounds similar to the "externals" ...
Set up a scheduled job?
...Django, and I'm curious if there is a way to schedule a job to run periodically.
24 Answers
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Counting null and non-null values in a single query
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If I understood correctly you want to count all NULL and all NOT NULL in a column...
If that is correct:
SELECT count(*) FROM us WHERE a IS NULL
UNION ALL
SELECT count(*) FROM us WHERE a IS NOT NULL
Edited to have the full query, after reading the comments :]
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How do I reverse a C++ vector?
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All containers offer a reversed view of their content with rbegin() and rend(). These two functions return so-calles reverse iterators, which can be used like normal ones, but it will look like the container is actually rever...
Unable to execute dex: method ID not in [0, 0xffff]: 65536
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Update 3 (11/3/2014)
Google finally released official description.
Update 2 (10/31/2014)
Gradle plugin v0.14.0 for Android adds support for multi-dex. To enable, you just have to declare it in build.gradle:
android {
defaultConfig {
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Why is spawning threads in Java EE container discouraged?
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It is discouraged because all resources within the environment are meant to be managed, and potentially monitored, by the server. Also, much of the context in which a thread is being used is typically attached to the thread of execution itself. If y...
How to define a function in ghci across multiple lines?
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For guards (like your example), you can just put them all on one line and it works (guards do not care about spacing)
let abs n | n >= 0 = n | otherwise = -n
If you wanted to write your function with multiple definitions that pattern match on the arguments, like this:
fac...