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Catch Ctrl-C in C
...on of asynchronous signal safety. This is because printf is not reentrant. What happens if the program was in the middle of using printf when Ctrl-C was pressed, and your signal handler starts using it at the same time? Hint: It will likely break. write and fwrite are same to use in this context.
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In Clojure, when should I use a vector over a list, and the other way around?
I read that Vectors are not seqs, but Lists are. I'm not sure what the rationale is for using one over the other. It seems that vectors are used the most, but is there a reason for that?
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How to read the output from git diff?
...header you can have instead c/, i/, w/ and o/ as prefixes, respectively to what you compare; see git-config(1)
Next come one or more hunks of differences; each hunk shows one area where the files differ. Unified format hunks starts with line like@@ -1,8 +1,9 @@or@@ -18,6 +19,8 @@ int cmd_http_fetch...
Access denied for user 'root'@'localhost' while attempting to grant privileges. How do I grant privi
...OR 'root'@'localhost';
did not say 'ALL PRIVILEGES' but had to spell out what root@localhost has.
GRANT ALL PRIVILEGES will fail, because a user can not grant what he/she does not have,
and the server seem to think something is not here ...
Now, what's missing then ?
On my system, I get this:
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Draw in Canvas by finger, Android
...nction , but mPaint define in MainActivity and DrawingView called it . is what iam do by separate classes is right ?
– Sameer H. Ibra
May 20 '13 at 14:16
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How to copy files between two nodes using ansible
...estination/directory/
// if needed
rsync_opts:
- "--include=what_needed"
- "--exclude=**/**"
mode: pull
delegate_to: "{{ inventory_hostname }}"
when on remote_server you need to startup rsync with daemon mode. Simple example:
pid file = /var/run/rsyncd.pid
lock file ...
Is there a Pattern Matching Utility like GREP in Windows?
...ised no one has mentioned FINDSTR. I'm no grep poweruser, but findstr does what I need it to, filter files and stdin, with some primitive regex support. Ships with Windows and all that. (Edit: Well someone did mention findstr, It's late I guess)
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Using jQuery to test if an input has focus
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What about when you need it to work with both 1.5- and 1.6? I don't want to override jQuery's own focus selector. Something like if (!jQuery.expr[':'].focus) { /* gist from Ben Alman */ } ?
– Betamos
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Pretty printing XML with javascript
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@ablmf: What "doesn't work"? What is "Chrome"? I never heard of such XSLT processor. Also, if you have a look at the date of the answer, the Chrome browser was non-existent at that time.
– Dimitre Novatchev
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Python: Making a beep noise
...t "alert" signal instead. With any luck, that signal is accessible through whatever GUI package he's using.
– jforberg
Jun 30 '11 at 16:25
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