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Generate GUID in MySQL for existing Data?
...ch of data to a MySQL table and I have a column "GUID" that I want to basically fill down all existing rows with new and unique random GUID's.
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In Vim, how do I apply a macro to a set of lines?
...at performs an operation on a single line. I want to repeat that macro on all of the remaining lines in the file. Is there a quick way to do this?
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Why does ~True result in -2?
...00000001
and ~1 is:
11111110
Which is -2 in Two's complement1
1 Flip all the bits, add 1 to the resulting number and interpret the result as a binary representation of the magnitude and add a negative sign (since the number begins with 1):
11111110 → 00000001 → 00000010
↑ ...
How to get box-shadow on left & right sides only
...d to add display: inline-block to pseudo classes for your example to work. All in all: nice solution. +1
– Morpheus
Mar 6 '14 at 14:46
7
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What is the difference between “int” and “uint” / “long” and “ulong”?
...128 to 127. The 9th bit represents 256. So with 8 bits you can represent all values up to 255 (9th val - 1). The range from -128 to 127 has a length of exactly 255. So there is no bit that holds the sign. All values up to 127 are positive. Values above get displayed negative. 255 would be -1. 254 wo...
How do I clear my local working directory in Git? [duplicate]
... last committed state:
git reset --hard
To remove untracked files, I usually just delete all files in the working copy (but not the .git/ folder!), then do git reset --hard which leaves it with only committed files.
A better way is to use git clean (warning: using the -x flag as below will cause...
How do I access the host machine from the guest machine? [closed]
...is a mac-only thing. When you open up System Preferences / Sharing, it actually shows you the computer name, and below it notes that to access it on the local network you should use computername.local - this applies for connection to file sharing, web sharing, etc
– Johnus
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Why are arrays of references illegal?
...question about standard I can cite the C++ Standard §8.3.2/4:
There shall be no references to references, no arrays of references, and no pointers to references.
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How to pass variable number of arguments to a PHP function
...o pass the function depends on the length of an array. Is there a way to call a PHP function with a variable number of arguments?
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TFS: Updating branch with changes from main
...e Target branch drop-down, select your dev branch.
If you want a subset of all the changes in the mainline:
Choose the Selected changesets radio button, click Next.
Select the changesets that represent the merge from your other dev's branch into main, click Next.
Otherwise, keep All changes up to ...