c++ - stl源码解析里面分析copy函数的问题

stl源码解析里面分析copy函数的时候，说最快的是调用memmove函数但我看了memmove的源代码，我感觉和RandomAccessIterator版本的copy函数相比，应该一样快啊。为什么说memmove是操作...

From [C++discussion group] 2017-04-17 14:32:57 0  1  913

How to apply C++ separated compilation?

C++ Primer's introduction to separated compilation is very simple, so I wanted to try how to use it. Run the f...

From [C++discussion group] 2017-06-20 10:06:13 0  1  912

How to implement bind yourself?

{Code...} I don’t understand the code in the middle. How is it implemented with part 3? Who can write a simple...

From [C++discussion group] 2017-06-15 09:23:57 0  1  911

c++ - zlib 解压gzip/deflate 报错问题？

加入http头：wstring szHeader = L"Accept-Encoding: gzip,deflate"; 用网上提供的这段代码可以成功解压http gzip压缩的网页 ，比如http:...

From [C++discussion group] 2017-04-17 14:33:39 0  1  911

为什么c++拷贝构造函数一定是传引用？为什么不能是传指针的方式？

值传递会造成死循环。但传指针为什么不行？指针不是是传地址吗，为什么不能用指针？有个博客说传指针也是传值，请问究竟是为什么

From [C++discussion group] 2017-04-17 13:45:32 0  3  911

C++ programming ascll version or unicode version problem. Which encoding is the unicode version?

I used vs2015 to set the unicode encoding, and then opened it and found that it was gb2312 encoding. I used Ne...

From [C++discussion group] 2017-05-16 13:25:34 0  1  908

c++ - 如何用C语言计算两点之间距离（超大数据）？

//计算x y之间距离double distance(point a,point b){ {代码...} } 想要直接以这样的公式计算，但是当输入大于六位数会出错。需要输入小于等于1000000的数字。所以有没有能够数据...

From [C++discussion group] 2017-04-17 14:32:50 0  4  908

c++ - 为什么memcpy(calendar, cal, sizeof(CALENDAR))这里输出是错误的啊，搞不懂了

不知道是什么原因 {代码...} 输出是这样的

From [C++discussion group] 2017-04-17 12:03:19 0  2  903

java - How to design a class in this case? Are there any design patterns?

A kind of data passing through the hardware device uses a special format. The first paragraph is the id, and t...

From [C++discussion group] 2017-06-17 09:15:50 0  5  902

Unit testing - some issues related to code organization in c++ testing

I am a novice C++ programmer. I used JavaScript most of the time. Now due to homework needs, I am writing a pr...

From [C++discussion group] 2017-05-31 10:38:53 0  1  902

服务器端 - 采用nginx做web服务器，C++开发应用程序 出现拒绝连接请求？

想尝试用C++开发后台应用程序，通过nginx转发。一切按照http://blog.csdn.net/allenlinrui/article/details/19419721 这个博客上的教程，改装的库都装了，测试例程都...

From [C++discussion group] 2017-04-17 13:41:37 0  3  902

c语言 - bmp图像如何用c/c++处理?

求代码，用c/c++进行bmp图像的处理，处理内容包括旋转，灰度图，二值图等等。

From [C++discussion group] 2017-04-17 13:09:18 0  10  901

c++ - vb 中形参 实参 ByVal ByRef 有什么实例?

编程业余爱好者.. 我也百度搜了,但是说的我也看不明白,都是专业属于... 别鄙视我,给我举个简单的例子呗.

From [C++discussion group] 2017-04-17 14:28:22 0  3  899

c++单例类编译不通过

{代码...} 错误 LNK2001 无法解析的外部符号 "private: static class Singleton * Singleton::m_instance" (?m_instance@...

From [C++discussion group] 2017-04-17 13:34:10 0  2  899

linux - I have some questions about the byte order of sockets.

I was learning about sockets recently and found that if I send a request, the requested IP address and port nu...

From [C++discussion group] 2017-05-31 10:37:36 0  3  898