大约有 20,000 项符合查询结果(耗时:0.0212秒) [XML]

https://stackoverflow.com/ques... 

Turn a simple socket into an SSL socket

...lk of the functionality. You may want to add a while loop on connections. int sockfd, newsockfd; SSL_CTX *sslctx; SSL *cSSL; InitializeSSL(); sockfd = socket(AF_INET, SOCK_STREAM, 0); if (sockfd< 0) { //Log and Error return; } struct sockaddr_in saiServerAddress; bzero((char *) &sai...
https://stackoverflow.com/ques... 

Why is creating a Thread said to be expensive?

...kes its creation expensive? I'm taking the statement as true, but I'm just interested in mechanics of Thread creation in JVM. ...
https://stackoverflow.com/ques... 

How do I execute a command and get the output of the command within C++ using POSIX?

... @Yasky: When the program being executed is int main(){ puts("ERROR"); }. – dreamlax Dec 16 '13 at 21:03 8 ...
https://stackoverflow.com/ques... 

What is the point of function pointers?

I have trouble seeing the utility of function pointers. I guess it may be useful in some cases (they exist, after all), but I can't think of a case where it's better or unavoidable to use a function pointer. ...
https://stackoverflow.com/ques... 

Why isn't the size of an array parameter the same as within main?

... An array-type is implicitly converted into pointer type when you pass it in to a function. So, void PrintSize(int p_someArray[10]) { printf("%zu\n", sizeof(p_someArray)); } and void PrintSize(int *p_someArray) { printf("%zu\n", sizeof(p_someArray)); ...
https://stackoverflow.com/ques... 

if A vs if A is not None:

...g and the built-in operation bool(); should return False or True, or their integer equivalents 0 or 1. When this method is not defined, __len__() is called, if it is defined, and the object is considered true if its result is nonzero. If a class defines neither __len__() nor __nonzero__(), all its i...
https://stackoverflow.com/ques... 

Shell command to sum integers, one per line?

...ll accept (as input) multiple lines of text, each line containing a single integer, and output the sum of these integers. 4...
https://stackoverflow.com/ques... 

Two-dimensional array in Swift

... Define mutable array // 2 dimensional array of arrays of Ints var arr = [[Int]]() OR: // 2 dimensional array of arrays of Ints var arr: [[Int]] = [] OR if you need an array of predefined size (as mentioned by @0x7fffffff in comments): // 2 dimensional array of arrays of I...
https://stackoverflow.com/ques... 

Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?

...n a call to std::terminate() and abort the application. To clarify the point about move-only parameters, the following is valid C++11, and transfers the ownership of the int from the temporary std::unique_ptr to the parameter of f1 when the new thread is started. However, if you use boost::thread ...
https://stackoverflow.com/ques... 

iOS: how to perform a HTTP POST request?

...e.com/dontposthere"] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; // Uncomment the following two lines if you're using JSON like I imagine many people are (the person who is asking specified plain text) // [request addValue:@"application/json" forHTTPHeaderField:@"Co...