大约有 8,600 项符合查询结果（耗时：0.0306秒） [XML]
Is inline assembly language slower than native C++ code?
...uage (C++ and C in this case). It's not true. Is C code always faster than Java code? No because there is another variable: programmer. The way you write code and knowledge of architecture details greatly influence performance (as you saw in this case).
You can always produce an example where handm...
Why do we need tuples in Python (or any immutable data type)?
...tantial optimization; this is presumably why strings are also immutable in Java, developed quite separately but about the same time as Python, and just about everything is immutable in truly-functional languages.
in Python in particular, only immutables can be hashable (and, therefore, members of se...
How do I check if a type is a subtype OR the type of an object?
...
There's no way of doing this in method name like Java? ``` void <? extends Base> saveObject(? objectToSave)```
– Oliver Dixon
Jun 26 '16 at 13:37
...
Use C++ with Cocoa Instead of Objective-C?
...d the Cocoa APIs.
ⁱ For a while Apple made the Cocoa API available to Java, but the bridge required extensive hand-tuning and was unable to handle the more advanced technologies such as Key-Value Bindings described above. Currently dynamically typed, runtime-bound languages like Python, Ruby, e...
What are the benefits of using C# vs F# or F# vs C#? [closed]
... "None", then you need to check if it is "Some(null)".
F# is like the old Java clone J#, just a bastardized language just to attract attention. Some people will love it, a few of those will even use it, but in the end it is still a 20-year-old language tacked onto the CLR.
...
Returning a C string from a function
... flavour is inherently understood by the language itself. Other languages (Java, Pascal, etc.) use different methodologies to understand "my string".
If you ever use the Windows API (which is in C++), you'll see quite regularly function parameters like: "LPCSTR lpszName". The 'sz' part represents t...
Logback to log different messages to two files
...
Not the answer you're looking for? Browse other questions tagged java logging logback slf4j or ask your own question.
Rails: How does the respond_to block work?
...ts in a json object sent from the server.
This is very handy for making javascript heavy applications that need to pass json back and forth from the server. If you wanted, you could easily create a json api on your rails back-end, and only pass one view - like the index view of your Post control...
When to call activity context OR application context?
...plicationContext() (or getBaseContext(), to a lesser extent) because their Java experience is limited. They implement an inner class (e.g., an OnClickListener for a Button in an Activity) and need a Context. Rather than using MyActivity.this to get at the outer class' this, they use getApplicationCo...
What is Castle Windsor, and why should I care?
...
And to help the Java folks: This is Guice for .NET ;-)
– Mark Renouf
May 16 '09 at 22:10
5
...