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Waiting until two async blocks are executed before starting another block
... Do you notice that the time is not equal to the sleep time set in your block? why it would be like this?
– Damon Yuan
Aug 2 '15 at 12:56
2
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与复制构造函数相关的错误.例如:0x77D9FCAA (ntdll.dll) (prog31.exe 中)处...
与复制构造函数相关的错误.例如:0x77D9FCAA (ntdll.dll) (prog31.exe 中)处有未经处理的异常: 0xC0000374:堆已损坏。 (参数: 0x77DC6668)这种错误可能就是与内存有关的释放问题。这里的错误示例代码主要是为了说明复制构造函数，尤其是含有...
Coding Practices which enable the compiler/optimizer to make a faster program
Many years ago, C compilers were not particularly smart. As a workaround K&R invented the register keyword, to hint to the compiler, that maybe it would be a good idea to keep this variable in an internal register. They also made the tertiary operator to help generate better code.
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How do I close a single buffer (out of many) in Vim?
...etc.
This approach is particularly useful when the 'hidden' Vim option is set, because the buffer list can quickly become quite large, covering several screens, and making it difficult to spot the particular buffer I am looking for.
To make the most of this feature, it's probably best to read the...
vs2008编译boost详细步骤 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
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（10）smart_ptr，智能指针。
【二、Boost库的编译】
【Setp1 准备工作】：
（1）Boost 下载可以到官方网站下载：
http://www.boost.org/
（2）安装VS2008 IDE
【Setp2 编译Boost】
1.打开Visual Studio 2008 命令提示窗口
2.进入D:\05_Computer...
const vs constexpr on variables
... editor after snippets, if snippets enabled
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createEditor();
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也来说说ReactOS的调试 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...TCHAR* DeviceControlString)
{
DCB dcb;
DWORD ErrorCode;
memset(&dcb, 0, sizeof(DCB));
dcb.DCBlength = sizeof(dcb);
if (!BuildCommDCB(DeviceControlString, &dcb))
{
ErrorCode = GetLastError();
_tprintf(TEXT("BuildCommDCB() failed. GetLastError() = %lu.\n"), ErrorCode...
How can foreign key constraints be temporarily disabled using T-SQL?
... you are trying to disable primary key for insert, I would recomend using (SET IDENTITY_INSERT) if you want just check for primary key, you can try sys.key_constraints with sys.indexes.is_primary_key
– Diego Mendes
Jan 20 '17 at 10:46
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Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?
...only uses the number of bytes + 1 to store your text, so you might as well set it to 255, unless you want a hard limit (like 50) on the number of characters in the field.
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How to step through Python code to help debug issues?
...ch are documented on the pdb page.
Some useful ones to remember are:
b: set a breakpoint
c: continue debugging until you hit a breakpoint
s: step through the code
n: to go to next line of code
l: list source code for the current file (default: 11 lines including the line being executed)
u: naviga...