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浮点数在内存中的表示 - C/C++ - 清泛网 - 专注C/C++及内核技术
浮点数在内存中的表示Float_Memory_Representation一般我们常见的字符型、整型在内存中采用标准的二进制存储，但是程序员往往容易忽略浮点数在内存中的储存方式，从而会导致一些误用，最常见的是浮点数等于零的判断。只有理解...
浮点数在内存中的表示 - C/C++ - 清泛网移动版 - 专注C/C++及内核技术
浮点数在内存中的表示Float_Memory_Representation一般我们常见的字符型、整型在内存中采用标准的二进制存储，但是程序员往往容易忽略浮点数在内存中的储存方式，从而会导致一些误用，最常见的是浮点数等于零的判断。只有理解...
浮点数在内存中的表示 - C/C++ - 清泛网 - 专注C/C++及内核技术
浮点数在内存中的表示Float_Memory_Representation一般我们常见的字符型、整型在内存中采用标准的二进制存储，但是程序员往往容易忽略浮点数在内存中的储存方式，从而会导致一些误用，最常见的是浮点数等于零的判断。只有理解...
git command to move a folder inside another
I have created a folder common with a bunch of source files and folders.
9 Answers
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How do I revert my changes to a git submodule?
...nto the submodule's directory, then do a git reset --hard to reset all modified files to their last committed state. Be aware that this will discard all non-committed changes.
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Printing newlines with print() in R
I am trying to print a multiline message in R. For example,
4 Answers
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sqlalchemy flush() and get inserted id?
...e code should have worked as it is. SQLAlchemy should be providing a value for f.id, assuming its an autogenerating primary-key column. Primary-key attributes are populated immediately within the flush() process as they are generated, and no call to commit() should be required. So the answer here ...
Capturing Groups From a Grep RegEx
...ve got this little script in sh (Mac OSX 10.6) to look through an array of files. Google has stopped being helpful at this point:
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Can I mask an input text in a bat file?
I am writing a batch file to execute some other programs. In this case I need to prompt for a password. Do I have any way to mask the input text? I don't need to print ******* characters instead of input characters. Linux's Password prompt behavior (Print nothing while typing) is enough.
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Confusion between factor levels and factor labels
There seems to be a difference between levels and labels of a factor in R.
Up to now, I always thought that levels were the 'real' name of factor levels, and labels were the names used for output (such as tables and plots). Obviously, this is not the case, as the following example shows:
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