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Maximum number of threads in a .NET app?
...eads:
1023 in Framework 4.0 (32-bit environment)
32767 in Framework 4.0 (64-bit environment)
250 per core in Framework 3.5
25 per core in Framework 2.0
(These numbers may vary depending upon the hardware and OS)]
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An error occurred while installing pg (0.17.1), and Bundler cannot continue
...gem install pg fails, try the following command:
env ARCHFLAGS="-arch x86_64" gem install pg -- --with-pg-config=/Applications/Postgres.app/Contents/MacOS/bin/pg_config
... from the PostgreSQL.app Documentation
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Objective-C and Swift URL encoding
...tersInString:@" \"#%/:<>?@[\\]^`{|}"] invertedSet];
Creating a Base64
In the case of Base64 characterset:
NSCharacterSet *URLBase64CharacterSet = [[NSCharacterSet characterSetWithCharactersInString:@"/+=\n"] invertedSet];
For Swift 3.0:
var escapedString = originalString.addingPe...
Hashing a file in Python
...lly arbitrary, change for your app!
BUF_SIZE = 65536 # lets read stuff in 64kb chunks!
md5 = hashlib.md5()
sha1 = hashlib.sha1()
with open(sys.argv[1], 'rb') as f:
while True:
data = f.read(BUF_SIZE)
if not data:
break
md5.update(data)
sha1.update(d...
Installing PG gem on OS X - failure to build native extension
...sion 8.x installed.
So I run the following command:
ARCHFLAGS="-arch x86_64" gem install pg
and this worked for me, I hope this helps someone :)
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What is the difference between float and double?
...E double-precision. Nevertheless, for most architectures (gcc, MSVC; x86, x64, ARM) float is indeed a IEEE single-precision floating point number (binary32), and double is a IEEE double-precision floating point number (binary64).
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ESP8285接入App Inventor 2深度调研：4种连接方案+是否需要开发拓展 - 创客...
... Inventor 2的所有可行路径。
一、ESP8285芯片概述
ESP8285是乐鑫(Espressif)推出的WiFi SoC，本质是ESP8266的"内置Flash版本"：
参数ESP8285ESP8266CPUTensilica L106, 80/160MHz相同WiFi802.11 b/g/n相同Flash内置 1MB外部 SPI FlashSRAM~50KB 用户可用...
scoped_ptr 与 auto_ptr 与 shared_ptr 区别总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...资源的所有权，并永远不会放弃这个所有权；3.shared_ptr 是可以共享所有权的智能指针。1.auto_ptr 被复制后，将失去原来所致资源的所有权；
2.scoped_ptr永远不能被复制或被赋值！scoped_ptr拥有它所指向的资源的所有权，并永远不会...
应用程序无法正常启动0xc0150002 解决方式 - 操作系统(内核) - 清泛网 - 专...
...的源头，其每次生成exe文件时都直接嵌入清单文件，而不是默认的依据时戳而决定是否更新清单文件。
方案二：不嵌入清单文件。在项目的“属性｜配置属性｜清单工具｜输入和输出”中的“嵌入清单”选择“否”，从而在生...
Linux 搭建NTP时间同步服务器 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...搭建NTP时间同步服务器NTP服务器【Network Time Protocol（NTP】是用来使计算机时间同步化的一种协议，NTP服务器可以对其它服务器做时间同步化，从而达到时间统一。配置环境及要求：A、 假设10 8 9 0 NTP服务器【Network Time Protocol（NT...