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Modulo operation with negative numbers

... Should the compiler be smart enough and detect that an unsigned modulo another unsigned is always positive? Currently (well, GCC 5.2) the compiler seems to think that "%" returns an "int" in this case, rather than "unsigned" even when both operands are uint32_t or bigger. ...
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How can we make xkcd style graphs?

... <- (rg[4] - rg[3]) / 1000; xjitter <- (rg[2] - rg[1]) / 1000; x_mod <- x + rnorm(len) * xjitter; y_mod <- y + rnorm(len) * yjitter; lines(x_mod, y_mod, col='white', lwd=10); lines(x_mod, y_mod, col=color, lwd=5); } Basic axis: xkcd_axis <- function() {   rg <- par("...
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Do you have to restart apache to make re-write rules in the .htaccess take effect?

...races in the error.log Hope that helps. http://httpd.apache.org/docs/2.4/mod/mod_rewrite.html#logging – Casper Wilkes Apr 16 '18 at 16:27 ...
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How is a CRC32 checksum calculated?

... + 1x^10 + 1x^1 + x^0 But mathematicians changed the rules so that it is mod 2. So basically any binary polynomial mod 2 is just addition without carry or XORs. So our original equation looks like: =( 1x^110 + 1x^101 + 1x^100 + 11x^11 + 1x^10 + 1x^1 + x^0 ) MOD 2 =( 1x^110 + 1x^101 + 1x^100 + 1x...
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Why is isNaN(null) == false in JS?

... Sep 22 '08 at 23:07 treat your mods welltreat your mods well 2,48511 gold badge2323 silver badges3333 bronze badges ...
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PHP code is not being executed, instead code shows on the page

...d see if returns version information or any errors. Make sure that the PHP module is listed and uncommented inside of your Apache's httpd.conf This should be something like LoadModule php5_module "c:/php/php5apache2_2.dll" in the file. Search for LoadModule php, and make sure that there is no commen...
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Format bytes to kilobytes, megabytes, gigabytes

...{ $units = array('B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB'); $mod = 1024; } // SI prefixes (decimal) else { $units = array('B', 'kB', 'MB', 'GB', 'TB', 'PB'); $mod = 1000; } // Determine unit to use if (($power = array_search((string) $fo...
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How to clear APC cache entries?

... This does NOT work if you run PHP using mod_php. For the reason Frank Farmer stated. – David Nov 28 '12 at 15:33 11 ...
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How to force the browser to reload cached CSS/JS files?

...css/base.css'); ?>" type="text/css" /> This way, you never have to modify the link tag again, and the user will always see the latest CSS. The browser will be able to cache the CSS file, but when you make any changes to your CSS the browser will see this as a new URL, so it won't use the ca...
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Apache and Node.js on the Same Server

...he following lines are NOT commented out so you get the right proxy and submodule to reroute http requests: LoadModule proxy_module modules/mod_proxy.so LoadModule proxy_http_module modules/mod_proxy_http.so Then run your Node app on port 8000! var http = require('http'); http.createServer(funct...