大约有 23,000 项符合查询结果（耗时：0.0345秒） [XML]
How to get error message when ifstream open fails
...ilure:
std::ifstream f;
//prepare f to throw if failbit gets set
std::ios_base::iostate exceptionMask = f.exceptions() | std::ios::failbit;
f.exceptions(exceptionMask);
try {
f.open(fileName);
}
catch (std::ios_base::failure& e) {
std::cerr << e.what() << '\n';
}
e.what(), ho...
Filtering a list of strings based on contents
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
WCF vs ASP.NET Web API [closed]
... of the concepts have changed).
WCF was originally created to enable SOAP-based services. For simpler RESTful or RPCish services (think clients like jQuery) ASP.NET Web API should be good choice.
share
|
...
Interfaces vs. abstract classes [duplicate]
...ement/inherit from your interface/abstract class, but inherit from another base class, use an interface.
share
|
improve this answer
|
follow
|
...
Haskell offline documentation?
...S]
Commands:
[search] Perform a search
data Generate Hoogle databases
server Start a Hoogle server
combine Combine multiple databases into one
convert Convert an input file to a database
test Run tests
dump Dump sections of a database to stdout
rank Gener...
SHA512 vs. Blowfish and Bcrypt [closed]
...whole hasn't had as much scrutiny as Blowfish itself, I believe that being based on a cipher with a well-understood structure gives it some inherent security that hash-based authentication lacks. Also, it is easier to use common GPUs as a tool for attacking SHA-2–based hashes; because of its memor...
Any reason to prefer getClass() over instanceof when generating .equals()?
...rticularly important because most of the collections (HashTable, etc.) are based on the equals method. If you put a member of the super class in a hash table as the key and then look it up using a subclass instance, you won't find it, because they are not equal.
See also this SO answer.
Effective...
C++STL容器使用经验总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...线性时间的操作。
第28条：正确理解由reverse_iterator的base()成员函数所产生的iterator的用法。
如果要在一个reverse_iterator ri指定的位置上插入元素，则只需在ri.base()位置处插入元素即可。对于插入操作而言，ri和ri.base()是等价的...
Priority queue in .Net [closed]
...ult)
{
}
public MaxHeap(Comparer<T> comparer)
: base(comparer)
{
}
public MaxHeap(IEnumerable<T> collection, Comparer<T> comparer)
: base(collection, comparer)
{
}
public MaxHeap(IEnumerable<T> collection) : base(collecti...
Replace a value in a data frame based on a conditional (`if`) statement
In the R data frame coded for below, I would like to replace all of the times that B
appears with b .
8 Answers
...