大约有 10,150 项符合查询结果(耗时:0.0287秒) [XML]

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Practical usage of setjmp and longjmp in C

Can anyone explain me where exactly setjmp() and longjmp() functions can be used practically in embedded programming? I know that these are for error handling. But I'd like to know some use cases. ...
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How to get JSON response from http.Get

I'm trying read JSON data from web, but that code returns empty result. I'm not sure what I'm doing wrong here. 4 Answers ...
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How do I print the elements of a C++ vector in GDB?

I want to examine the contents of a std::vector in GDB, how do I do it? Let's say it's a std::vector<int> for the sake of simplicity. ...
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How do I close a single buffer (out of many) in Vim?

I open several files in Vim by, for example, running 10 Answers 10 ...
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Get program execution time in the shell

I want to execute something in a linux shell under a few different conditions, and be able to output the execution time of each execution. ...
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Struggling with NSNumberFormatter in Swift for currency

I am creating a budget app that allows the user to input their budget as well as transactions. I need to allow the user to enter both pence and pounds from separate text fields and they need to be formatted together with currency symbols. I have this working fine at the moment but would like to make...
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Adding n hours to a date in Java?

How do I add n hours to a Date object? I found another example using days on StackOverflow, but still don't understand how to do it with hours. ...
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Get string character by index - Java

I know how to work out the index of a certain character or number in a string, but is there any predefined method I can use to give me the character at the nth position? So in the string "foo", if I asked for the character with index 0 it would return "f". ...
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Single script to run in both Windows batch and Linux Bash?

Is it possible to write a single script file which executes in both Windows (treated as .bat) and Linux (via Bash)? 11 Answ...
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Best practices for SQL varchar column length [closed]

Every time is set up a new SQL table or add a new varchar column to an existing table, I am wondering one thing: what is the best value for the length . ...