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Is there a use-case for singletons with database access in PHP?
...pical intellectual conservatism.
Endless examples can be given for that, ranging from 'globals are evil' to 'iframes are evil'. Back around 10 years ago, even proposing the use of an iframe in any given application was heresy. Then comes Facebook, iframes everywhere, and look what has happened - i...
What are the differences between Generics in C# and Java… and Templates in C++? [closed]
...ally, that's not quite right: C++ doesn't work on containers but rather on ranges that are defined by two iterators, pointing to the beginning and behind the end of the container. Thus, the whole content is circumscribed by the iterators: begin <= elements < end.
Using iterators instead of co...
Why would you use an ivar?
...;< 32) | arc4random();
rnd = rnd % ((max + 1) - min); // Trim it to range
return (rnd + min); // Lift it up to min value
}
static
void createAccounts ( const NSUInteger ammount ) {
NSArray *const maleNames = @[
@"Noah", @"Liam", @"Mason", @"Jacob", @"William",
@"Ethan...
What should main() return in C and C++?
...program. Whether return 0; should be omitted or not is open to debate. The range of valid C program main signatures is much greater.
Efficiency is not an issue with the main function. It can only be entered and left once (marking the program's start and termination) according to the C++ standard....
Socket 错误返回码详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...subsystem is unavailable
Socket error 10092 - WINSOCK.DLL version out of range
Socket error 10093 - Successful WSAStartup not yet performed
Socket error 10094 - Graceful shutdown in progress
Socket error 11001 - Host not found
Socket error 11002 - Non-authoritative host not found
Socket ...
Difference between GIT and CVS
...et of lieutenants/subsystem maintainers from which he/she pulls, and broad range of leaf developers who send patches via mail either to maintainer/project mailing list, or to one of lieutenants/submaintainers).
With Git you have choice of using SSH protocol (git protocol wrapped in SSH) to publish ...
Using git repository as a database backend
...exec() blah blah ...) .In terms of implementation complexity, it will range from the simple and effective ( eg scripting ) to the complex and wonderful ( some programmed connector interface) . All depends on how crazy you want to go with it , and how much sweat capital you are willing to s...
A simple explanation of Naive Bayes Classification
... say that we have data on 1000 pieces of fruit. They happen to be Banana, Orange or some Other Fruit.
We know 3 characteristics about each fruit:
Whether it is Long
Whether it is Sweet and
If its color is Yellow.
This is our 'training set.' We will use this to predict the type of any new fruit ...
Why does struct alignment depend on whether a field type is primitive or user-defined?
.... That means we can no longer use an 8-byte integer to represent the whole range of time we're interested in. That has prompted me to investigate the memory usage of the (many) structs of Noda Time, which has in turn led me to uncover a slight oddity in the CLR's alignment decision.
...
Alternatives to gprof [closed]
...t 2 times, or as many as 4. So that 60% measurement is more like a general range from 40% to 80%. If it were only 40%, would you say the problem is not worth fixing? So what's the point of time accuracy, when what you really want is to find the problems?
500 or 5000 samples would have measured the p...