Call dependency graph in NS-3
To understand NS-3 better, or to know how something is being done in NS-3, or just to know where to modify, run the following code:
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ns3: ASCII trace to stdout
The way demonstrated in examples to put ASCII trace into a file:
AsciiTraceHelper ascii;
p2p.EnableAsciiAll (ascii.CreateFileStream ("tcp-star-server.tr"));
To output to stdout (or other existing std::ostream object), use the following instead:
pointToPoint.EnableAsciiAll (Create<OutputStreamWrapper>(&std::cout));
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Changing OS X Folder Icon
來源：http://support.apple.com/kb/ht2493
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Mac OS X Lion
To celebrate the release of Mac OS X Lion, I bought a 750GB HDD to upgrade my MBP, and install the new OS X. Installing the Lion is not smooth, but all is done now. Below are some random hassles that I encountered:
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The k-Shortest Path Algorithms
That is, to find paths between a pair of nodes in a graph that are the shortest.
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