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Are C++ enums signed or unsigned?
...3 Enum type is a distinct type of its own having no concept of sign. Since from C++03 standard dcl.enum
7.2 Enumeration declarations
5 Each enumeration defines a type that is different from all other types....
So when we are talking about the sign of an enum type, say when comparing 2 enum opera...
API vs. Webservice [closed]
...uses Interrupts to invoke the system calls that comprise its API for calls from user space.
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When should I make explicit use of the `this` pointer?
...on't particular like it, I've seen others use this-> simply to get help from intellisense!
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Why am I seeing an “origin is not allowed by Access-Control-Allow-Origin” error here? [duplicate]
...pt tag into the head part of your html (you know that you can load scripts from different domains than yours here).
However, to use jsonp the server must be configured properly. If this is not the case you cannot use jsonp and you MUST rely on a server side proxy (PHP, ASP, etc.). There are plenty o...
Clearing a string buffer/builder after loop
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I think the performance benefit comes from the string mutability, not from saving the instantiation. here's a quick test of 1e8 iterations: inside loop (2.97s): ideone.com/uyyTL14w, outside loop (2.87s): ideone.com/F9lgsIxh
– Mark Elliot
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How to check if UILabel is truncated?
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from the doc : textRectForBounds:limitedToNumberOfLines: "You should not call this method directly"...
– Martin
Nov 7 '12 at 15:25
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Is it better to use std::memcpy() or std::copy() in terms to performance?
...ns. However, after my first few attempts, I got results that varied wildly from one run to the next, so I'm guessing there was some sort of OS activity going on. I decided to start over.
Same compiler settings and flags. There is only one version of MD5, and it's faster than SHA-2, so I did 3000 lo...
How to use wait and notify in Java without IllegalMonitorStateException?
... sync.doWait();
}
/** at this momoent you sure that you got response from BlackBoxClass because
onResponse method released your 'wait'. In other cases if you don't want wait too
long (for example wait data from socket) you can use doWait(time)
*/
...
}
@override
public void onR...
Reading a plain text file in Java
...TEXT file so you would use Readers for reading. Java also supports reading from a binary file using InputStreams. If the files being read are huge then you would want to use a BufferedReader on top of a FileReader to improve read performance.
Go through this article on how to use a Reader
I'd also...
stringstream, string, and char* conversion confusion
My question can be boiled down to, where does the string returned from stringstream.str().c_str() live in memory, and why can't it be assigned to a const char* ?
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