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Why is argc not a constant?
As Effective C++ Item#3 states "Use const whenever possible", I start thinking "why not make these 'constant' parameters const "?.
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What is an unsigned char?
In C/C++, what an unsigned char is used for? How is it different from a regular char ?
17 Answers
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What is the difference between a map and a dictionary?
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Two terms for the same thing:
"Map" is used by Java, C++
"Dictionary" is used by .Net, Python
"Associative array" is used by PHP
"Map" is the correct mathematical term, but it is avoided because it has a separate meaning in functional programming.
Some languages use still ot...
How to make an ImageView with rounded corners?
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It takes nearly 0.03 second to do that for a 200*200 picture, so I do think that's not best solution.
– LiangWang
Aug 7 '13 at 20:56
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Using G++ to compile multiple .cpp and .h files
I've just inherited some C++ code that was written poorly with one cpp file which contained the main and a bunch of other functions. There are also .h files that contain classes and their function definitions.
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智能手机图形解锁有多少种可能 - 创意 - 清泛网 - 专注C/C++及内核技术
...。
下面的答案来自果壳Matrix67,这个人的个人网站也不错,http://www.matrix67.com/
Android 的密码是 3 × 3 点阵中的一条路径,这条路径可以交叉,可以“走日字”,几乎是无所不能(只要不经过重复点),但却有一个例外:...
C语言判断文件是否存在 - C/C++ - 清泛网 - 专注C/C++及内核技术
...数为0时表示检查文件的存在性,如果文件存在,返回0,不存在,返回-1。
这个函数还可以检查其它文件属性:
06 检查读写权限
04 检查读权限
02 检查写权限
01 检查执行权限
00 检查文件的存在性
在...
VS工程“生成事件”之文件拷贝 - C/C++ - 清泛网 - 专注C/C++及内核技术
...目录才能运行,如果有多个编译版本需要拷贝多份,这样不便于...有时工程下面引用了lib文件,但是编译Debug/Release等版本时需要将dll拷至指定目录才能运行,
如果有多个编译版本需要拷贝多份,这样不便于维护(config等配置文...
MFC中主窗口和子窗口的菜单问题,如何统一显示MDI主窗体菜单? - C/C++ - ...
...用程序中,每一个子窗体的菜单都显示在 MDI 窗体上,而不是在子窗体本身。当子窗体有焦点时,该子窗体的菜单(如果有的话)就...
在 MDI 应用程序中,每一个子窗体的菜单都显示在 MDI 窗体上,而不是在子窗体本身...
MFC AfxMessageBox改变标题的几种方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...这个标题,也就是我们的默认的工程名,我们应该怎么在不改变工程名的基础上改变标题呢?其实这个标题在...1、资源文件AFX_IDS_APP_TITLE(推荐):
AfxMessageBox的标题,默认是工程名,那么怎么在不改变工程名的基础上改变标题...
