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了解 Boost Filesystem Library - C/C++ - 清泛网 - 专注C/C++及内核技术
...此流程将对该分区的所有目录返回相同的磁盘使用量统计数据（以字节为单位）。例如，对于 C:\src\dir1 和 C:\src\dir2，都会返回相同的磁盘使用数据。
std::time_t last_write_time(const path&)：返回文件的最后修改时间。
void last_write_tim...
When does invoking a member function on a null instance result in undefined behavior?
...ber that succeeding falls within the universe of "undefined"!
Microsoft's MFC function GetSafeHwnd actually relies on this behavior. I don't know what they were smoking.
If you're calling a virtual function, the pointer must be dereferenced to get to the vtable, and for sure you're going to get UB...
Why Qt is misusing model/view terminology?
...at they call "View". Over the years I have worked with these frameworks:
MFC
Qt
Swing
SWT
WPF with MVVM
If you compare how the terms "Model" and "View" are used in these frameworks, and what responsibilities the classes in the "View", the "Model", and the "Controller" (if there is one) have, you...
Notifier 通知扩展：功能强大的Android通知管理工具，支持通知通道、意图、...
...
2.4 (2021-04-16)
- 设计器中 Colorized 属性的数据类型错误- 使用 KeepAlive 扩展时，意图类型 Event 的 UrsNotification.OnClick 事件未触发（注意：示例不受影响）
2.5 (2021-04-17)
在某些条件下，UrsNotification.Oncli...
Framework vs. Toolkit vs. Library [duplicate]
...r towards a specific output; an application for a specific OS for example (MFC for MS Windows for example), or for more general purpose work (Spring framework for example).
SDK: "Software Development Kit"
An SDK is a collection of tools to assist the programmer to create and deploy code/content wh...
Multiple INSERT statements vs. single INSERT with multiple VALUES
...ation trying to convert a table with several 100k rows with a C++ program (MFC/ODBC).
Since this operation took a very long time, I figured bundling multiple inserts into one (up to 1000 due to MSSQL limitations). My guess that a lot of single insert statements would create an overhead similar to w...
如何建立一套适合自己的高胜算交易系统 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...大单分析(这在你的交易系统说明中有充分的体表)；股东数据分析；换手率分析；指数对大盘重心的偏离度分析。寻找买点和卖点。
4)指数偏离大盘重心的程度与仓位线性关系探索，创立指数和仓位的年度方程和季度方程。
5)...
An operation on a socket could not be performed because the system lac...
...注册表项：
值的名称： MaxUserPort
值类型： 双字节
值数据： 65534
有效范围： 5000-65534 （十进制）
默认值： 0x1388 （5000 十进制）
说明： 此参数控制的程序从系统请求任何可用的用户端口时所使用的最大端口号。通常情况下...
An operation on a socket could not be performed because the system lac...
...注册表项：
值的名称： MaxUserPort
值类型： 双字节
值数据： 65534
有效范围： 5000-65534 （十进制）
默认值： 0x1388 （5000 十进制）
说明： 此参数控制的程序从系统请求任何可用的用户端口时所使用的最大端口号。通常情况下...
An operation on a socket could not be performed because the system lac...
...注册表项：
值的名称： MaxUserPort
值类型： 双字节
值数据： 65534
有效范围： 5000-65534 （十进制）
默认值： 0x1388 （5000 十进制）
说明： 此参数控制的程序从系统请求任何可用的用户端口时所使用的最大端口号。通常情况下...