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How to drive C#, C++ or Java compiler to compute 1+2+3+…+1000 at compile time?

...t;unsigned Cur, unsigned Goal> struct adder{ static unsigned const sub_goal = (Cur + Goal) / 2; static unsigned const tmp = adder<Cur, sub_goal>::value; static unsigned const value = tmp + adder<sub_goal+1, Goal>::value; }; template<unsigned Goal> struct adder<Goal, Go...
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Does Python have a package/module management system?

... manager until 2014. Until Pip, the de facto standard was a command easy_install. It was woefully inadequate. The was no command to uninstall packages. Pip was a massive improvement. It had most the features of Ruby's Gem. Unfortunately, Pip was--until recently--ironically difficult to install. ...
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Where is the C auto keyword used?

... The page linked is outdated. Since C11, there's also _Thread_local details: en.cppreference.com/w/c/language/storage_duration and stackoverflow.com/a/14289720/6557621 – MCCCS Jun 7 '18 at 16:02 ...
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Reading file contents on the client-side in javascript in various browsers

...) { alert(content); } ReadFileAllBrowsers(document.getElementById("file_upload"), CallBackFunction); //Tested in Mozilla Firefox browser, Chrome function ReadFileAllBrowsers(FileElement, CallBackFunction) { try { var file = FileElement.files[0]; var contents_ = ""; if (file) { ...
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What is the email subject length limit?

... many problems with the subject you set: 1. Spaces should be encoded with '_', 2. An 'encoded-word' (=?charset?Q/B?data?=) may not be more than 75 characters long (rfc2047). 3rd You can not escape new line with '=' char at the end of the line (header QP encoding is different then body QP). Bottom l...
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How to remove a directory from git repository?

...e directory and recommit it to the .git repo? – alpha_989 Jan 21 '18 at 18:15 1 Great! Working! ...
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How to calculate the CPU usage of a process by PID in Linux from C?

...rocess pgrp pgrp of the process sid session id tty_nr tty the process uses tty_pgrp pgrp of the tty flags task flags min_flt number of minor faults cmin_flt number of minor faults with child's maj_flt number of major faults cm...
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Use CSS3 transitions with gradient backgrounds

... And here's a fiddle for that: jsfiddle.net/Volker_E/RksTV The key is the property background-size, which you can't in IE8. caniuse.com/#search=background-size Apart from that it's a nice solution. – Volker E. Nov 7 '13 at 22:35 ...
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How to fix java.lang.UnsupportedClassVersionError: Unsupported major.minor version

...pse.jdt.core.compiler.codegen.targetPlatform=1.7. And my compiler was 1.6.0_32. The problem was resolved after changing the values to 1.6. The issue originated after i copied the project from a different workspace where i was using JDK 1.7 :( – Gana Dec 22 '14 ...
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ActiveRecord: size vs count

...e a new record without going through the relation, i.e. Comment.create(post_id: post.id), your post.comments.size will not be up to date, while post.comments.count will. So just be careful. – mrbrdo Mar 31 '13 at 19:52 ...