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What does (x ^ 0x1) != 0 mean?
...ually Spook is right. The test (x != 1) is not equivalent. The code can be C++ (and in C++, ^ can be an operator that does anything). So you don't know the context, @Spook is right.
– xryl669
Dec 19 '13 at 18:33
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What is the meaning of the term “free function” in C++?
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The term free function in C++ simply refers to non-member functions. Every function that is not a member function is a free function.
struct X {
void f() {} // not a free function
};
void g() {} // free function
in...
What does int argc, char *argv[] mean?
In many C++ IDE's and compilers, when it generates the main function for you, it looks like this:
8 Answers
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Is cout synchronized/thread-safe?
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The C++03 standard does not say anything about it. When you have no guarantees about the thread-safety of something, you should treat it as not thread-safe.
Of particular interest here is the fact that cout is buffered. Even if ...
How to initialize a struct in accordance with C programming language standards
... the same as objects that have static storage duration.
Microsoft Visual C++ compiler should support designated initializers since version 2013 according to official blog post C++ Conformance Roadmap. Paragraph Initializing unions and structs of Initializers article at MSDN Visual Studio document...
Why does C# allow {} code blocks without a preceding statement?
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And in C++, because of RAII instead of GC, it is far more useful.
– Deduplicator
Dec 23 '15 at 1:44
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How to repeat a string a variable number of times in C++?
... want to insert 'n' spaces (or any string) at the beginning of a string in C++. Is there any direct way to do this using either std::strings or char* strings?
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Are typedef and #define the same in c?
...ound types (like structs and function pointers) readable and handlable (in C++ there are even situations where you must typedef a type).
For (3): You should always prefer language features over preprocessor macros when that's possible! So always use typedefs for types, and constant values for const...
Windows应用程序异常：异常代码: 0xc0000005 - C/C++ - 清泛网 - 专注C/C++及内核技术
...溃，没有留下任何痕迹，追踪困难。这时可以打开Windows的应用程序日志，查看崩溃信息。操作方法，我的电脑右键管理：错 有时应用程序异常崩溃，没有留下任何痕迹，追踪困难。这时可以打开Windows的应用程序日志，查看崩...
stl 字符串std::string作为std::map主键key的实例 - C/C++ - 清泛网 - 专注C/C++及内核技术
stl 字符串std::string作为std::map主键key的实例本文通过一个实例介绍std::map字符串作为key的常见用法，并使用find_if实现map按value值查找。代码如下：
#include <map>
#include <string>
#include <algorithm>
using namespace std;
class map_value_finder
{...