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获取文件系统映像及恢复删除的数据(FAT文件系统格式描述) - C/C++ - 清泛...

获取文件系统映像及恢复删除的数据(FAT文件系统格式描述)Getting-the-File-System-Image-and-Deleted-Data-Recovery大多数的 flash驱动器的文件系统都采用 FAT 格式。下面介绍下这种系统格式, FAT 系统由三个主要部分构成:保留区域、 表 (F...
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获取文件系统映像及恢复删除的数据(FAT文件系统格式描述) - C/C++ - 清泛...

获取文件系统映像及恢复删除的数据(FAT文件系统格式描述)Getting-the-File-System-Image-and-Deleted-Data-Recovery大多数的 flash驱动器的文件系统都采用 FAT 格式。下面介绍下这种系统格式, FAT 系统由三个主要部分构成:保留区域、 表 (F...
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How can I profile C++ code running on Linux?

I have a C++ application, running on Linux, which I'm in the process of optimizing. How can I pinpoint which areas of my code are running slowly? ...
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How did I get a value larger than 8 bits in size from an 8-bit integer?

...extremely nasty bug hiding behind this little gem. I am aware that per the C++ spec, signed overflows are undefined behavior, but only when the overflow occurs when the value is extended to bit-width sizeof(int) . As I understand it, incrementing a char shouldn't ever be undefined behavior as lon...
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Why does auto a=1; compile in C?

...gned d; // actually unsigned int which is still common in modern code. C++11 reused the keyword, which few if any C++ programmers were using with the original meaning, for its type inference. This is mostly safe because the "everything is int" rule from C had already been dropped in C++98; the o...
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Run an Application in GDB Until an Exception Occurs

...to cause the debugger to stop for certain kinds of program events, such as C++ exceptions or the loading of a shared library. Use the catch command to set a catchpoint. catch event Stop when event occurs. event can be any of the following: throw The throwing of a C++ exception. catch ...
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When do I use a dot, arrow, or double colon to refer to members of a class in C++?

Coming from other C-derived languages (like Java or C#) to C++, it is at first very confusing that C++ has three ways to refer to members of a class: a::b , a.b , and a->b . When do I use which one of these operators? ...
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“Unresolved inclusion” error with Eclipse CDT for C standard library headers

...in several sections for the compiler: Adding include paths and symbols C/C++ Project Properties, Paths and Symbols, Includes And if the code-completion/indexer or preprocessor specifically also cannot locate stdio.h: Setting up include paths and macros for C/C++ indexer C/C++ Project propertie...
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Is there any use for unique_ptr with array?

... @Aidiakapi C++ requires that if you delete[] an array of objects which have destructors, the destructors get run. For that reason, the C++ run time already needs to know the actual size of most arrays that have been allocated that way. ...
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Is #pragma once part of the C++11 standard?

...ally, the standard and portable way to avoid multiple header inclusions in C++ was/is to use the #ifndef - #define - #endif pre-compiler directives scheme also called macro-guard scheme (see code snippet below). ...