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How do I install the OpenSSL libraries on Ubuntu?
I'm trying to build some code on Ubuntu 10.04 LTS that uses OpenSSL 1.0.0. When I run make, it invokes g++ with the "-lssl" option. The source includes:
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What is a regular expression for a MAC Address?
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21 Answers
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How can I replace a regex substring match in Javascript?
That replaces the entire string str with 1 . I want it to replace the matched substring instead of the whole string. Is this possible in Javascript?
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Regex how to match an optional character
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Use
[A-Z]?
to make the letter optional. {1} is redundant. (Of course you could also write [A-Z]{0,1} which would mean the same, but that's what the ? is there for.)
You could improve your regex to
^([0-9]{5})+\s+([A-Z]?)\s+([A-Z])([0-9]{3})([0-9]{3})([A-Z]{3})([A-...
How to determine if a point is in a 2D triangle? [closed]
...nce issues.
And here's some code to get you started:
float sign (fPoint p1, fPoint p2, fPoint p3)
{
return (p1.x - p3.x) * (p2.y - p3.y) - (p2.x - p3.x) * (p1.y - p3.y);
}
bool PointInTriangle (fPoint pt, fPoint v1, fPoint v2, fPoint v3)
{
float d1, d2, d3;
bool has_neg, has_pos;
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How to use sed to replace only the first occurrence in a file?
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144
# sed script to change "foo" to "bar" only on the first occurrence
1{x;s/^/first/;x;}
1,/fo...
unable to start mongodb local server
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176
Try:
sudo service mongod stop
sudo mongod
To stop current active mongodb service, allowing ...
Fill SVG path element with a background-image
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1 Answer
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How do I generate random numbers in Dart?
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13 Answers
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how to find host name from IP with out login to the host
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11 Answers
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