大约有 4,041 项符合查询结果（耗时：0.0168秒） [XML]
Is Python strongly typed?
...t the strong vs. weak typing is more of a continuum than a boolean choice. C++ has stronger typing than C (more conversions required), but the type system can be subverted by using pointer casts.
The strength of the type system in a dynamic language such as Python is really determined by how its pr...
Setting an object to null vs Dispose()
...izer (written as ~Foo() in C#, somewhat confusingly - they're nothing like C++ destructors). It runs the finalizers on these objects, just in case they need to do extra cleanup before their memory is freed.
Finalizers are almost always used to clean up resources in the case where the user of the ty...
What is more efficient? Using pow to square or just multiply it with itself?
...e faster than pow(x, 3), because there is no pow(double, int) overload. In C++, it will be the roughly same. (Assuming the methodology in my testing is correct.)
This is in response to the comment made by An Markm:
Even if a using namespace std directive was issued, if the second parameter to po...
How to build & install GLFW 3 and use it in a Linux project
...ere (at the bottom of the page) and save, exit.
Now compile using g++ -std=c++11 -c main.cpp - not sure if c++11 is required but I used nullptr so, I needed it... You may need to upgrade your gcc to version 4.7, or the upcoming version 4.8... Info on that here.
Then fix your errors if you typed the ...
Is it better to use std::memcpy() or std::copy() in terms to performance?
...ce a performance difference. However, the winner was std::copy.
I wrote a C++ SHA-2 implementation. In my test, I hash 5 strings using all four SHA-2 versions (224, 256, 384, 512), and I loop 300 times. I measure times using Boost.timer. That 300 loop counter is enough to completely stabilize my re...
What is the difference between sigaction and signal?
...ftware/libc/manual/html_node/Signal-Sets.html
See also:
TutorialsPoint C++ Signal Handling [with excellent demo code]: https://www.tutorialspoint.com/cplusplus/cpp_signal_handling.htm
https://www.tutorialspoint.com/c_standard_library/signal_h.htm
...
What is the difference between class and instance attributes?
.... The attribute on an instance is unique to that instance.
If coming from C++, attributes on the class are more like static member variables.
share
|
improve this answer
|
f...
Graph Algorithm To Find All Connections Between Two Arbitrary Vertices
...solution to this problem for ages. I have recently implemented this DFS in C++ and it works a treat.
– AndyUK
Nov 10 '08 at 11:16
6
...
What does the thread_local mean in C++11?
I am confused with the description of thread_local in C++11. My understanding is, each thread has unique copy of local variables in a function. The global/static variables can be accessed by all the threads (possibly synchronized access using locks). And the thread_local variables are visible to...
Why does Ruby have both private and protected methods?
...this.
It is important to note that this is different from the way Java or C++ works. private in Ruby is similar to protected in Java/C++ in that subclasses have access to the method. In Ruby, there is no way to restrict access to a method from its subclasses like you can with private in Java.
Vis...