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Why can't I use the 'await' operator within the body of a lock statement?
...it, and reacquire it when the await returns
This violates the principle of least astonishment IMO, where the asynchronous method should behave as closely as possible like the equivalent synchronous code - unless you use Monitor.Wait in a lock block, you expect to own the lock for the duration of the...
Forward declaring an enum in C++
...'s enum class as a C++ extension (before C++11's different enum class), at least if I remember correctly. The compiler allowed you to specify an enum's underlying type, but didn't support enum class or forward-declared enums, and warned you that qualifying an enumerator with the enum's scope was a ...
Better way of getting time in milliseconds in javascript?
...in JavaScript of getting time in milliseconds using the date object, or at least a way to reuse that object, without having to instantiate a new object every time I need to get this value? I am asking this because I am trying to make a simple game engine in JavaScript, and when calculating the "delt...
REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...the total memory allocation for the database. Value(in MB) should be
# at least 256 MB, and should not exceed the total physical memory available
# on the system. 指定Oracle自动管理内存的大小，最小是256MB
# Example: oracle.install.db.config.starterdb.memoryLimit=512
#-------------...
How to generate JAXB classes from XSD?
...
For Eclipse STS (3.5 at least) you don't need to install anything. Right click on schema.xsd -> Generate -> JAXB Classes. You'll have to specify the package & location in the next step and that's all, your classes should be generated. I gu...
How to find the nearest parent of a Git branch?
...estors), that have the current tip of develop as a parent:
does at least one such commit exist?
are all such commits single-parent commits?
Which could be implemented as:
pushedrev=...
basename=develop
if ! baserev="$(git rev-parse --verify refs/heads/"$basename" 2>/dev/null)"; th...
String concatenation vs. string substitution in Python
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This code has at least 2 bad programming practices: expectation of global variables (domain and questions are not declared inside function) and passing more variables than needed to a format() function. Downvoting because this answer teaches ...
Android 4.3 Bluetooth Low Energy unstable
...] scanRecord) in the same thread on Samsung Galaxy S3 with Android 4.3 (at least for build JSS15J.I9300XXUGMK6)
Most devices filter advertising
Better not use android.bluetooth.BluetoothAdapter#startLeScan(UUID[] serviceUuids, LeScanCallback callback) with the parameter to filter for certain servic...
How to send password securely over HTTP?
...much easier and you can rest at ease very smart people (smarter than me at least!) have scrutinized this method of confidential communication for years.
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Sublime Text 2: Trim trailing white space on demand
...lace with: leave empty.
Click 'Replace All'
[^\S\r\n]+$ is Regex for "at least one whitespace character (so spaces and tabs but not newlines, using a double negation) followed by the end of the line"
Regular Expression must be enabled:
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