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Best way to serialize an NSData into a hexadeximal string
...atic char _NSData_BytesConversionString_[512] = "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f505152535455565758595a5b5c5d5e5f606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7...
How does the Brainfuck Hello World actually work?
...ad a decimal ASCII code 97 to memory:
...[0][0][*97*][0][0]...
You generally want to think that way, however the truth is a bit more complex. The truth is BF does not read a character but a byte (whatever that byte is). Let me show you example:
In linux
$ printf ł
prints:
ł
which is spec...
How can I recover a lost commit in Git?
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Accidentally dropped a commit I should have kept when rebasing. This totally saved me from redo-ing a couple hours worth of work.
– josephting
Jan 10 '19 at 6:30
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Rebasing a Git merge commit
... to do an interactive rebase and edit the merge commit, redo the merge manually and continue the rebase.
Another is to use the --rebase-merges option on git rebase, which is described as follows from the manual:
By default, a rebase will simply drop merge commits from the todo list, and put the reb...
How to remove/delete a large file from commit history in Git repository?
I accidentally dropped a DVD-rip into a website project, then carelessly git commit -a -m ... , and, zap, the repo was bloated by 2.2 gigs. Next time I made some edits, deleted the video file, and committed everything, but the compressed file is still there in the repository, in history.
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What's the difference between “squash” and “fixup” in Git/Git Extension?
... log message
For example:
pick 22a4667 father commit message
squash 46d7c0d child commit message # case 1
# fixup 46d7c0d child commit message # case 2
The commit message after rebasing in case 1 would be:
father commit message
child commit message
while the commit message in case 2 is:
father ...
What's the dSYM and how to use it? (iOS SDK)
...4e0 0x18f394000 + 79072
4 libswiftCore.dylib 0x000000018f3ab0d8 0x18f394000 + 94424
5 F49088168M 0x00000001045ac750 0x104590000 + 116560
6 F49088168M 0x00000001045b7904 0x104590000 + 162052
7 F49088168M 0x00000001045...
What is the smallest possible valid PDF?
Out of simple curiosity, having seen the smallest GIF , what is the smallest possible valid PDF file?
4 Answers
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Why are regular expressions so controversial? [closed]
...ions. And not just slow, but the performance of the regex engine can be totally unpredictable when faced with arbitrary (user-supplied) inputs.
– Pacerier
Dec 1 '15 at 21:53
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^M at the end of every line in vim
...g to do with editing a file in windows and then in linux. How can I remove all of these automatically?
9 Answers
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