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What is &&& operation in C
...y of the following:
c = i && 1;
c = !!i;
c = (bool)i; // C++ or C with <stdbool.h>
c = i ? 1 : 0; /* C */
c = i ? true : false; // C++
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STL：accumulate与自定义数据类型 - C/C++ - 清泛网 - 专注C/C++及内核技术
STL：accumulate与自定义数据类型C++ STL中有一个通用的数值类型计算函数— accumulate(),可以用来直接计算数组或者容器中C++内置数据类型，例如：#include <numeric>int...C++ STL中有一个通用的数值类型计算函数— accumulate(),可以用来直接...
stdbool.h C99标准杂谈 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ol.h C99标准杂谈include <stdbool.h> 找不到头文件？？？bool 是C++中的关键字，C中不支持所以C99标准中引入了头文件 stdbool.h，包含了四个用于布尔型...include <stdbool.h> 找不到头文件？？？
bool 是C++中的关键字，C中不支持
所以C99标准...
error C2440: “return”: 无法从“const Screen”转换为“Screen &” - C/...
...转换为“Screen &”转换丢失限定符。出错代码（例子来自c++ primer 4th）：Screen& Screen::display(std::ostream& os) const{ os << contents...转换丢失限定符。
出错代码（例子来自c++ primer 4th）：
Screen& Screen::display(std::ostream& os) const
{
os <...
Creating an array of objects in Java
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I had this confusion too, since I am from C++ background I always assumed that like in C++ Java's new keyword also calls the constructor and allocates the I memory. I guess in Java new only creates the references not the actual object as compared to C++. Thanks for a...
C++, Free-Store vs Heap
...he word "heap" in the context of dynamic allocation is used neither by the C++ standard nor C99 (I don't have C89 to which C++ refers, feel free to correct me if it uses the word). I couldn't find the date the GotW in question was published, but since it talks about the draft, it's obviously pre-sta...
Inheriting from a template class in c++
Let's say we have a template class Area , which has a member variable T area , a T getArea() and a void setArea(T) member functions.
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How does the compilation/linking process work?
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The compilation of a C++ program involves three steps:
Preprocessing: the preprocessor takes a C++ source code file and deals with the #includes, #defines and other preprocessor directives. The output of this step is a "pure" C++ file without p...
C++ - passing references to std::shared_ptr or boost::shared_ptr
...blem is that now the test code will exhibit undefined behaviour (in Visual C++ 2010 debug builds, it crashes).
Mr Maintainer is surprised by this, but adds a defensive check to send_message in an attempt to stop the problem happening:
void send_message(const std::shared_ptr<std::string> &...
How do you pass a function as a parameter in C?
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Since C++11 you can use the functional library to do this in a succinct and generic fashion. The syntax is, e.g.,
std::function<bool (int)>
where bool is the return type here of a one-argument function whose first argument...