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How can I remove a flag in C?
...ad trouble understand bitwise operations until someone took 10 minutes to explain it on paper.
– Dennis
Oct 14 '10 at 1:08
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Virtual Serial Port for Linux
I need to test a serial port application on Linux, however, my test machine only has one serial port.
8 Answers
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Calculate RSA key fingerprint
...y fingerprint. I originally followed a guide to generate an SSH key on Linux.
14 Answers
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Less aggressive compilation with CSS3 calc
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Less no longer evaluates expression inside calc by default since v3.00.
Original answer (Less v1.x...2.x):
Do this:
body { width: calc(~"100% - 250px - 1.5em"); }
In Less 1.4.0 we will have a strictMaths option which requires all Less calculati...
How to find out what group a given user has?
In Unix/Linux, how do you find out what group a given user is in via command line?
5 Answers
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Mercurial (hg) commit only certain files
... auto-add behavior and make Mercurial work like Git does. However, the mq extension might be of interest. That's an advanced extension, but it allows you do to
$ hg qnew feature-x # create new patch
$ hg qrefresh -s foo.c # add a file to the current patch
$ hg qrefresh -s bar.c # add another ...
How to replace a whole line with sed?
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Try this:
sed "s/aaa=.*/aaa=xxx/g"
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How to shuffle a std::vector?
...n intermediate array and it needs to know the item type (DeckCard in this example):
6 Answers
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Is it possible to declare two variables of different types in a for loop?
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C++17: Yes! You should use a structured binding declaration. The syntax has been supported in gcc and clang for years (since gcc-7 and clang-4.0) (clang live example). This allows us to unpack a tuple like so:
for (auto [i, f, s] = std::tuple{1, 1.0, std::string{"ab"}}; i < N; ++i, f += 1.5...
Determine if the device is a smartphone or tablet? [duplicate]
...ng:
Use the Smallest-width Qualifier
If you read the entire topic, they explain how to set a boolean value in a specific value file (as res/values-sw600dp/attrs.xml):
<resources>
<bool name="isTablet">true</bool>
</resources>
Because the sw600dp qualifier is only val...