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What is the difference between min SDK version/target SDK version vs. compile SDK version?
...change runtime behavior. It can generate for example new compiler warnings/errors. Therefore it is strongly recommended that you always compile with the latest SDK. You’ll get all the benefits of new compilation checks on existing code, avoid newly deprecated APIs, and be ready to use new APIs. On...
Split a module across several files
...d the module. Add a mod math; in main.rs. If you don't do that, you get an error message from the compiler when importing like this:
error: unresolved import `math::Matrix`. Maybe a missing `extern crate math`?
The hint is misleading here. There's no need for additional crates, except of course y...
How to specify maven's distributionManagement organisation wide?
...ed with maven-deploy-plugin version 2.8. Older versions will fail with the error message
Deployment failed: repository element was not specified in the POM inside distributionManagement element or in -DaltDeploymentRepository=id::layout::url parameter
To fix this, you can enforce a newer version ...
How to resolve merge conflicts in Git?
... * branch master -> FETCH_HEAD
Updating a030c3a..ee25213
error: Entry 'filename.c' not uptodate. Cannot merge.
So you get up-to-date and try again, but have a conflict:
git add filename.c
git commit -m "made some wild and crazy changes"
git pull origin master
From ssh://gitosis...
Is it bad practice to have a constructor function return a Promise?
...r of the constructor.
Since almost all code executes inside of a Promise, errors will end up in Process.fatal
This basic idea can be modified to fit specific encapsulation needs.
class MyClass {
constructor(o) {
if (o == null) o = false
if (o.run) Promise.resolve()
.then(() => ...
Singleton: How should it be used
...t; "hello world\n";
Of course not. We don't need protection against this error, because that kind of error just doesn't happen. If it does, the correct response is to go home and sleep for 12-20 hours and hope you feel better.
If only one object is needed, simply create one instance. If one objec...
Sending files using POST with HttpURLConnection
...
PS: According to this, ` [error] => 3` means that "the uploaded file was only partially uploaded", so I can assume that there are some buffering issues, but I have no idea how to debug / fix something like this.
– Mihai Todor
...
Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...效，否则填完以下install配置后，会出现错误"bin/postconf: error while loading shared libraries: libmysqlclient.so.18: cannot open shared object file: No such file or directory"。
若postfix报错postfix: fatal: parameter inet_interfaces: no local interface found for ::1
则 vi /et...
What does this square bracket and parenthesis bracket notation mean [first1,last1)?
... Pascal are one-based.
These differences can lead to subtle fence post errors, aka, off-by-one bugs when implementing Mathematical algorithms such as for-loops.
Integers
If we have a set or array, say of the first few primes [ 2, 3, 5, 7, 11, 13, 17, 19, 23, 29 ], Mathematicians would refer t...
C++11 rvalues and move semantics confusion (return statement)
..._ref = return_vector();
In the second example you have created a run time error. rval_ref now holds a reference to the destructed tmp inside the function. With any luck, this code would immediately crash.
Third example
std::vector<int> return_vector(void)
{
std::vector<int> tmp {1...