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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...
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...
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...
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...
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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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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“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...
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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Is there any use for unique_ptr with array?
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@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. ...
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).
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