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How many GCC optimization levels are there?

...rst part of this function: does integral_argument which calls atoi on the string corresponding to OPT_O to parse the input argument stores the value inside opts->x_optimize where opts is a struct gcc_opts. struct gcc_opts After grepping in vain, we notice that this struct is also generated at ...
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Running the new Intel emulator for Android

...e Accelerated Execution Manager. Download it with the SDK Manager, it's in Extras. After this, go to the folder [Android SDK Root]\extras\intel\Hardware_Accelerated_Execution_Manager then run IntelHaxm.exe and install. Here the link of the Intel Hardware Accelerated IntelHaxm.exe for Microsoft Wi...
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How to use null in switch

...l throw a NullPointerException when i is null. * Since Java 7 you can use String in switch statements. More about switch (including example with null variable) in Oracle Docs - Switch share | impr...
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Integrating the ZXing library directly into my Android application

... layout file ImageView imageView = (ImageView) findViewById(R.id.qrCode); String qrData = "Data I want to encode in QR code"; int qrCodeDimention = 500; QRCodeEncoder qrCodeEncoder = new QRCodeEncoder(qrData, null, Contents.Type.TEXT, BarcodeFormat.QR_CODE.toString(), qrCodeDimention); tr...
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curl POST format for CURLOPT_POSTFIELDS

... In case you are sending a string, urlencode() it. Otherwise if array, it should be key=>value paired and the Content-type header is automatically set to multipart/form-data. Also, you don't have to create extra functions to build the query for you...
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Split string to equal length substrings in Java

How to split the string "Thequickbrownfoxjumps" to substrings of equal size in Java. Eg. "Thequickbrownfoxjumps" of 4 equal size should give the output. ...
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What is the list of valid @SuppressWarnings warning names in Java?

...witch statement (enum case) nls to suppress warnings relative to non-nls string literals null to suppress warnings relative to null analysis restriction to suppress warnings relative to usage of discouraged or forbidden references serial to suppress warnings relative to missing serialVersi...
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json_encode() escaping forward slashes

...ript> tags it's necessary as a </script> anywhere - even inside a string - will end the script tag. Depending on where the JSON is used it's not necessary, but it can be safely ignored. share | ...
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Comparing two dictionaries and checking how many (key, value) pairs are equal

...th possibly different attribute values as in the example). However, if an "extra" attribute is present is one of the dicts, json.dumps() fails with TypeError: Object of type PrettyOrderedSet is not JSON serializable Solution: use diff.to_json() and json.loads() / json.dumps() to pretty-print: im...
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Get MD5 hash of big files in Python

...k) return md5.digest() Note that the iter() func needs an empty byte string for the returned iterator to halt at EOF, since read() returns b'' (not just ''). share | improve this answer ...