大约有 48,000 项符合查询结果(耗时:0.0585秒) [XML]

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Signed to unsigned conversion in C - is it always safe?

...implementation-defined or an implementation-defined signal is raised. Now we need to refer to (2) above. Your i will be converted to an unsigned value by adding UINT_MAX + 1. So the result will depend on how UINT_MAX is defined on your implementation. It will be large, but it will not overflow,...
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When to use actors instead of messaging solutions such as WebSphere MQ or Tibco Rendezvous?

...sage queue paradigm (google Spring's Reactor). Really the only distinction now is that RabbitMQ has durable messages.. oh wait Akka supports that now also. He may say "Actor" in the title but explicitly points out Akka which does have massive overlap with many message based systems (both concurrent ...
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How to run Django's test database only in memory?

...ing for ways to speed that up. I'm considering installing an SSD , but I know that has its downsides too. Of course, there are things I could do with my code, but I'm looking for a structural fix. Even running a single test is slow since the database needs to be rebuilt / south migrated every time....
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Simulating group_concat MySQL function in Microsoft SQL Server 2005?

... Possibly too late to be of benefit now, but is this not the easiest way to do things? SELECT empName, projIDs = replace ((SELECT Surname AS [data()] FROM project_members ...
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Bash Script : what does #!/bin/bash mean? [duplicate]

...mean ? In Linux system, we have shell which interprets our UNIX commands. Now there are a number of shell in Unix system. Among them, there is a shell called bash which is very very common Linux and it has a long history. This is a by default shell in Linux. When you write a script (collection of ...
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Learning Regular Expressions [closed]

... to what you might think of as cautious, add an extra ? to the quantifier. Now you understand how \((.+?)\), the example from your question works. It matches the sequence of a literal left-parenthesis, followed by one or more characters, and terminated by a right-parenthesis. If your input is '(123...
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Failed to install Python Cryptography package with PIP and setup.py

...: sudo yum install gcc libffi-devel python-devel OpenSSL-devel You should now be able to build and install cryptography with the usual. pip install cryptography share | improve this answer ...
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Install go with brew, and running the gotour

...efault: https://golang.org/doc/code.html#GOPATH – Snowcrash Jul 19 '18 at 7:17 4 This answer is...
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java.util.Date to XMLGregorianCalendar

...ld question. The classes mentioned, Date and XMLGregorianCalendar, are old now. I challenge the use of them and offer alternatives. Date was always poorly designed and is more than 20 years old. This is simple: don’t use it. XMLGregorianCalendar is old too and has an old-fashioned design. As I u...
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Getting raw SQL query string from PDO prepared statements

...r my thanks as well, was outside an entire extra class for this which I've now removed in favour of this as it's tiny and brilliant :). So damn useful for debbuging all the queries an application is doing on each page by logging them :D – NaughtySquid May 3 '17...