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How can we access context of an application in Robolectric?
...ment.application;
And for version 4.x:
add to your build.gradle file:
testImplementation 'androidx.test:core:1.0.0'
retrieve the context with:
ApplicationProvider.getApplicationContext()
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XP风格按钮的实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
...：1.从互联网上下载XPButton类；2.创建基于对话框的MFC工程Test,将下载的XPButton.cpp和XPButt...方法一：利用XPButton类实现
具体操作步骤如下：
1.网上下载XPButton类；请参考《【工程源码】XPButton源码-XP风格按钮》
2.创建基于对话框的...
记一次数据库表自增长（Auto Increment）故障 - 数据库(内核) - 清泛网 - ...
...不妨创建一个测试表说明问题：
CREATE TABLE IF NOT EXISTS `test` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(100) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB;
然后插入一行问题数据：
INSERT INTO test (id, name) VALUES (2147483647, 'x');
结果导...
PHP操作MongoDB时的整数问题及对策 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...);
$instance = new Mongo();
$instance = $instance->selectCollection('test', 'test');
for ($i = 0; $i < 10; $i++) {
$instance->insert(array(
'group_id' => rand(1, 5),
'count' => rand(1, 5),
));
}
?>
下面让我们使用group操作，根据group_id分组...
.reg文件删除注册表项和值 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... 前放置一个连字符 (-)。例如，要从以下注册表项中删除 Test 子...要使用 .reg 文件删除注册表项，请在 .reg 文件中的 RegistryPath 前放置一个连字符 (-)。例如，要从以下注册表项中删除 Test 子项：
HKEY_LOCAL_MACHINE\Software
请在 .reg 文...
Linux scp 远程文件上传下载，指定端口 - 操作系统(内核) - 清泛网 - 专注C...
...载，指定端口linux-scp1、默认22端口上传、下载文件：scp test tgz root@xxx xxx xxx xxx: tmpscp root@xxx xxx xxx xxx: tmp test tgz 2、指定端口：scp -P8888 root@xxx xxx xxx xxx: tmp test tgz 1、默认22端口上传、下载文件：
scp test.tgz root@xxx.xxx.xxx.xxx:/tmp
s...
What's a good way to extend Error in JavaScript?
...e object that is being thrown. Those things are guaranteed to be correct.
Test cases I used can be found here: JavaScript self-made Error object comparison.
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Best way to detect Mac OS X or Windows computers with JavaScript or jQuery
...r.platform property is not spoofed when the userAgent string is changed.
I tested on my Mac if I change the userAgent to iPhone or Chrome Windows, navigator.platform remains MacIntel.
The property is also read-only
I could came up with the following table
Mac Computers
Mac68K ...
how to convert from int to char*?
...ger64ToCharArray(int64_t value);
https://github.com/JeremyDX/All-Language-Testing-Code/blob/master/C%2B%2B%20Examples/IntegerToCharArrayTesting.cpp
Feel free to try cleaning that code up without hindering performance.
Input: Any signed 64 bit value from min to max range.
Example:
std::cout <...
Best way to require all files from a directory in ruby?
...s require is not confused by the presence or absence of the .rb extension. Tested on MRI 1.8.7-p374, 2.1.5 and 2.2.0 tested. This urban legend comes from Rails, where "clever" autoloading exhibited the behaviour he describes in older versions (and may still exhibit it).
– sheld...