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Java Serializable Object to Byte Array
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Prepare the byte array to send:
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream out = null;
try {
out = new ObjectOutputStream(bos);
out.writeObject(yourObject);
out.flush();
byte[] yourBytes = bos...
What is the difference between vmalloc and kmalloc?
...ry about using physically contiguous memory if the buffer will be accessed by a DMA device on a physically addressed bus (like PCI). The trouble is that many system calls have no way to know whether their buffer will eventually be passed to a DMA device: once you pass the buffer to another kernel su...
Showing line numbers in IPython/Jupyter Notebooks
...ter Notebooks indicate the line on which the error occurred; but (at least by default) no line numbers are indicated in Notebooks.
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Remove by _id in MongoDB console
In the MongoDB console how can I remove a record by id? Here's my collection :
11 Answers
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How can I check whether a option already exist in select by JQuery
How can I check whether a option already exist in select by JQuery?
8 Answers
8
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App Inventor 2 项目合并工具 AIMerge · App Inventor 2 中文网
...veloping but they must know the name that has been assigned to that screen by its developer. Also, two different developers/screens can use the same database or asset but they must be named the same (for more details on this see the Universal Databases and Assets section below). Finally, no two dif...
Unable to read data from the transport connection : An existing connection was forcibly closed by th
... or "Unavailable".
Edit - added
It IS possible that this is being caused by a firewall blocking the port, but given that you say it's intermittent ("sometimes when the client tries to connect"), that's very unlikely. I didn't include that originally because I had ruled it out mentally before repl...
How to track down a “double free or corruption” error
...ort at the point where the double free is done.
You can set this from gdb by using the set environment MALLOC_CHECK_ 2 command before running your program; the program should abort, with the free() call visible in the backtrace.
see the man page for malloc() for more information
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How does the main() method work in C?
... conventions which obeys these rules is stack-based parameter passing whereby the caller pops the arguments, and they are pushed right to left:
;; pseudo-assembly-language
;; main(argc, argv, envp); call
push envp ;; rightmost argument
push argv ;;
push argc ;; leftmost argument ends up o...
How to colorize diff on the command line?
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Just found that myself :-). It can be piped into less by using less -R, which displays the escape sequences for colors correctly.
– daniel kullmann
Jan 10 '12 at 9:25
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