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How do I use valgrind to find memory leaks?

...free this pointer? json_decref(root); //What about this one? Does the order matter? return 0; } This is a simple program: it reads a JSON string and parses it. In the making, we use library calls to do the parsing for us. Jansson makes the necessary allocations dynamically since JSON ca...
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Efficient evaluation of a function at every cell of a NumPy array

...one would like to avoid possible cache misses if axis are handled in wrong order. Numpy has already a machinery in place to process axes in the best possible order. One possibility to use this machinery is np.vectorize. However, numpy's documentation on np.vectorize states that it is "provided prim...
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Rails 4 multiple image or file upload using carrierwave

...product.pictures[1].url If you choose several images from a folder, the order will be the exact order you are taking them from top to bottom. share | improve this answer | ...
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curl_exec() always returns false

... +1: Simple and straight trouble-shooting for curl in PHP on curl_exec FALSE return. - Curl Verbose Mode in PHP example – hakre Nov 9 '12 at 20:10 ...
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Looping through the content of a file in Bash

...|| [ -n "$p" ] do printf '%s\n' "$p" done < peptides.txt Exceptionally, if the loop body may read from standard input, you can open the file using a different file descriptor: while read -u 10 p; do ... done 10<peptides.txt Here, 10 is just an arbitrary number (different from 0, 1, ...
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How can I echo a newline in a batch file?

...is a wonderful example to show that cmd.exe and Windows batch files are totally insane! – mivk Oct 15 '11 at 10:54 12 ...
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Auto-loading lib files in Rails 4

...models are loaded? add the path to autoload it's cool, but how control the order of inclusion? thx – Matrix Oct 16 '14 at 15:51 ...
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How to get all possible combinations of a list’s elements?

... the input iterable. Combinations are emitted in lexicographic sort order. So, if the input iterable is sorted, the combination tuples will be produced in sorted order. Since 2.6, batteries are included! share...
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What is the difference between Scope_Identity(), Identity(), @@Identity, and Ident_Current()?

...know Scope_Identity() , Identity() , @@Identity , and Ident_Current() all get the value of the identity column, but I would love to know the difference. ...
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How to change the URI (URL) for a remote Git repository?

... I also had to git remote set-url --push origin git://... in order to set the origin ... (push) url. – jpillora Jun 2 '14 at 9:12 4 ...