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What is the strict aliasing rule?

...n(void) { // Get a 32-bit buffer from the system uint32_t* buff = malloc(sizeof(Msg)); // Alias that buffer through message Msg* msg = (Msg*)(buff); // Send a bunch of messages for (int i = 0; i < 10; ++i) { msg->a = i; msg->b = i+1;...
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how do I make a single legend for many subplots with matplotlib?

... multiple subplots with matplotlib. That is, I have 9 plots on a 3x3 grid, all with the same for lines (of course, different values per line). ...
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submit a form in a new tab

...to test some functions, after I'll avoid this behaviour) to load the page called by submit on a new tab : is it possible? 8...
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Download multiple files with a single action

... don't portably parse multipart responses from the server side, but technically there's nothing difficult with doing this. – CMCDragonkai Jul 27 '18 at 4:25 2 ...
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How to print the ld(linker) search path

...he spot. I have a linking problem, during linking process linker finds manually installed libraries in /usr/local/.. which causes missing library error, and linking fails. I have to rename /usr/local everytime to exclude that search path. Is there a simple way to exclude or override /usr/local path?...
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iOS: How to store username/password within an app?

I have a login-screen in my iOS app. The username and password will be saved in the NSUserDefaults and be loaded into the login-screen again when you enter the app again (of course, NSUserDefaults are permanent). ...
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How to read a large file - line by line?

... The for line in f treats the file object f as an iterable, which automatically uses buffered I/O and memory management so you don't have to worry about large files. There should be one -- and preferably only one -- obvious way to do it. ...
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SQLAlchemy: how to filter date field?

...In fact, your query is right except for the typo: your filter is excluding all records: you should change the <= for >= and vice versa: qry = DBSession.query(User).filter( and_(User.birthday <= '1988-01-17', User.birthday >= '1985-01-17')) # or same: qry = DBSession.query(User)....
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/bin/sh: pushd: not found

...d by child processes. (A hypothetical pushd command might do the chdir(2) call and then start a new shell, but ... it wouldn't be very usable.) pushd is a shell builtin, just like cd. So, either change your script to start with #!/bin/bash or store the current working directory in a variable, do yo...
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No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?

... On your Eclipse IDE, go into Window > Preferences > Java > Installed JREs > and check your installed JREs. You should have an entry with a JDK there. Select the Execution Env as show below. Click OK Then Right-Click on your Project -> Maven -> Update Project Additionally, yo...