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ifstream 线程安全读文件 - C/C++ - 清泛网 - 专注C/C++及内核技术
ifstream 线程安全读文件函数 safeGetline：std::istream& safeGetline(std::istream& is, std::string& t){ t clear(); 使用std::streambuf 函数 safeGetline：
std::istream& safeGetline(std::istream& is, std::string& t)
{
t.clear();
//这比使用std::istream逐个读...
C#中数组、ArrayList和List三者的区别 - 更多技术 - 清泛网 - 专注C/C++及内核技术
C#中数组、ArrayList和List三者的区别在C#中数组，ArrayList，List都能够存储一组对象，那么这三者到底有什么样的区别呢。数组 数组在C#中最早出现的。在内存中是连续存储的，...在C#中数组，ArrayList，List都能够存储一组对象，那么...
Linq 多字段排序，二次排序 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...q 多字段排序，二次排序Linq：ordered = source.OrderByDescending( t => t.f1 ).ThenBy( t => t.f2 );类似SQL：select * from t1 order by f1 d...Linq：ordered = source.OrderByDescending( t => t.f1 ).ThenBy( t => t.f2 );
类似SQL：select * from t1 order by f1 desc ,f2 asc
这种写法...
Java ArrayList - how can I tell if two lists are equal, order not mattering?
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edited Aug 21 '17 at 6:32
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answered Nov 21 '12 at 21:02
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get name of a variable or parameter [duplicate]
I would like to get the name of a variable or parameter:
3 Answers
3
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Install an apk file from command prompt?
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Ready Android
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answered Aug 16 '11 at 10:20
Mohit KanadaMohit Ka...
Sleep for milliseconds
...ds.
– HighCommander4
Oct 9 '15 at 2:32
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How to calculate time elapsed in bash script?
I print the start and end time using date +"%T" , which results in something like:
20 Answers
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Add a reference column migration in Rails 4
A user has many uploads. I want to add a column to the uploads table that references the user . What should the migration look like?
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Multiple INSERT statements vs. single INSERT with multiple VALUES
... 2416 | 0.153846154 |
| 248 | 528 | 39 | 2432 | 0.157258065 |
| 249 | 528 | 39 | 2432 | 0.156626506 |
| 250 | 528 | 40 | 2448 | 0.16 |
| 251 | 400 | 273 | 3488 | 1.08...