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What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
...ion:
The Meta-Object Compiler, moc, is the
program that handles Qt's C++
extensions.
The moc tool reads a C++ header file.
If it finds one or more class
declarations that contain the Q_OBJECT
macro, it produces a C++ source file
containing the meta-object code for
those classe...
What are the advantages of using nullptr?
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void f(nullptr_t); //an overload to handle nullptr argument!!!
1. In C++, NULL is defined as #define NULL 0, so it is basically int, that is why f(int) is called.
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C++常用排序算法汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++常用排序算法汇总sort_algorithm介绍了C++常用的几种排序算法：选择排序(SelectSort)，冒泡排序(BubbleSort)，快速排序(QuickSort)，归并排序(MergeSort)，堆排序(HeapSort)，插入排序(InsertSort)，希尔排序(ShellSort) 1、选择排序(SelectSort)
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dynamic_cast and static_cast in C++
I am quite confused with the dynamic_cast keyword in C++.
10 Answers
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How to get current time and date in C++?
Is there a cross-platform way to get the current date and time in C++?
24 Answers
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C++ Object Instantiation
I'm a C programmer trying to understand C++. Many tutorials demonstrate object instantiation using a snippet such as:
9 An...
Empty Visual Studio Project?
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The Visual C++ project types has an "Empty Project" in the "General" category.
It comes up with several empty folders ("Header Files", "Resource Files", "Source Files") that are just 'filters' (they aren't on the file system). You can...
Generate random numbers using C++11 random library
...I am trying to figure out a way of generating random numbers using the new C++11 <random> library. I have tried it with this code:
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C++ IDE for Linux? [closed]
...veral different programming languages (but not, as far as I’m aware, for C++). Do give them a try even if — like me — you end up not using them. Here’s just a small and biased selection:
For Python development, there’s PyCharm
For R, there’s RStudio
For JavaScript and TypeScript, t...
How to use the same C++ code for Android and iOS?
Android with NDK has support to C/C++ code and iOS with Objective-C++ has support too, so how can I write applications with native C/C++ code shared between Android and iOS?
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