大约有 42,000 项符合查询结果（耗时：0.0619秒） [XML]
ByteBuffer.allocate() vs. ByteBuffer.allocateDirect()
...ystems manage things differently, so the author cannot be blamed for being unable to guarantee certain behavior.
– Martin Tuskevicius
Feb 5 '13 at 22:42
...
Integrating the ZXing library directly into my Android application
...ng with ANT? Keep reading
If ant -f core/build.xml
says something like:
Unable to locate tools.jar. Expected to find it in
C:\Program Files\Java\jre6\lib\tools.jar
then set your JAVA_HOME environment variable to the proper java folder. I found tools.jar in my (for Windows):
C:\Program Files\Ja...
List of Delphi language features and version in which they were introduced/deprecated
...searched repeatedly and exhaustively via Google for such a thing, and been unable to find one.
3 Answers
...
What is the difference between active and passive FTP?
...firewall (e.g. built-in Windows firewall) or NAT router (e.g. ADSL modem), unable to accept incoming TCP connections.
For this reason the passive mode was introduced and is mostly used nowadays. Using the passive mode is preferable because most of the complex configuration is done only once on the ...
Is std::vector so much slower than plain arrays?
...containers as fast as raw arrays.
The bottom line is that the compiler is unable to optimize away the no-op default constructor calls when using std::vector. If you use plain new[] it optimizes them away just fine. But not with std::vector. Even if you can rewrite your code to eliminate the constru...
How does SSL really work?
...sent in its list of CA's . When it cannot do this, it declares that it was unable to do the certificate chain verification. (This is a part of the answer. It also looks at AIA for this.) The client also does a similar verification for the server certificate which it receives in Server Hello.
On Win...
What is std::promise?
...at does "synchronizes" mean here? What does the entire statement mean? I'm unable to understand this. None of the meaning of "synchronize" from this dictionary entry helps me understand the sentence. Does just "waiting" mean "synchronization"? Does every wait synchronize? I think I partially underst...
Algorithm to generate a crossword
...lace (step 4).
Continue this loop until all the words are either placed or unable to be placed.
This makes a working, yet often quite poor crossword. There were a number of alterations I made to the basic recipe above to come up with a better result.
At the end of generating a crossword, give it...
When do we have to use copy constructors?
...opying methods should be used. Then the compiler won't complain that it is unable to implicitly define the copy constructor; it will be the users' sole responsibility to remember and check whether a sub-object of that type should be copied via a quasi-copy-constructor.
Don't copy state that is st...
How do I find where an exception was thrown in C++?
...et << ")\n\n";
} else {
_out << "-- error: unable to obtain symbol name for this frame\n\n";
}
}
_out << std::flush;
}
backtrace_on_terminate.hpp:
#include "demangle.hpp"
#include "backtrace.hpp"
#include <iostream>
#include <type_tr...