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Why are #ifndef and #define used in C++ header files?
I have been seeing code like this usually in the start of header files:
4 Answers
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How do I create delegates in Objective-C?
I know how delegates work, and I know how I can use them.
19 Answers
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How to play a local video with Swift?
I have a short mp4 video file that I've added to my current Xcode6 Beta project.
9 Answers
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compilation warning: no rule to process file for architecture i386
How can I resolve this warning?
5 Answers
5
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Sorting an array of objects by property values
I've got the following objects using AJAX and stored them in an array:
30 Answers
30
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了解 Boost Filesystem Library - C/C++ - 清泛网 - 专注C/C++及内核技术
...® 平台中，可以通过调用 GetAttributes 库函数（在 windows.h 头文件中定义）进行此操作：
DWORD GetFileAttributes (LPCTSTR lpFileName);
对于目录，所得到的结果应该为 FILE_ATTRIBUTE_DIRECTORY，而您的代码必须检查是否为此结果。在 UNI...
jQuery find events handlers registered with an object
I need to find which event handlers are registered over an object.
16 Answers
16
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Print text instead of value from C enum
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Enumerations in C are numbers that have convenient names inside your code. They are not strings, and the names assigned to them in the source code are not compiled into your program, and so they are not accessible at runtime.
The only way to get what you ...
C/C++中的段错误（Segmentation fault） - C/C++ - 清泛网 - 专注C/C++及内核技术
...是来自Answers.com的定义：
A segmentation fault (often shortened to segfault) is a particular error condition that can occur during the operation of computer software. In short, a segmentation fault occurs when a program attempts to access a memory location that it is not allowed t...
Why are hexadecimal numbers prefixed with 0x?
Why are hexadecimal numbers prefixed as 0x ?
I understand the usage of the prefix but I don't understand the significance of why 0x was chosen.
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