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C++ performance challenge: integer to std::string conversion

...6171819" "20212223242526272829" "30313233343536373839" "40414243444546474849" "50515253545556575859" "60616263646566676869" "70717273747576777879" "80818283848586878889" "90919293949596979899" }; std::string& itostr(int n, std::string& s) { if(n==0) { s="0";...
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Can gcc output C code after preprocessing?

...padimipadi 344k7777 gold badges492492 silver badges464464 bronze badges 14 ...
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Find provisioning profile in Xcode 5

...m DER -in your-mobileprovision-filename then cut-and-paste each block of base64 data after the DeveloperCertificates entry into its own file. You can then use: openssl asn1parse -inform PEM -in file-with-base64 to dump each certificate. The line after the second commonName in the output will be...
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Internet Explorer 11 detection

... added the machine bit space : ie11 : "Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; .NET4.0E; .NET4.0C; .NET CLR 3.5.30729; .NET CLR 2.0.50727; .NET CLR 3.0.30729; rv:11.0) like Gecko" ie12 : "Mozilla/5.0 (Windows NT 6.3; Win64; x64; Trident/7.0; .NET4.0E; .NET4.0C; .NET CLR 3.5.30729; ....
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What is the difference between encode/decode?

... Just as a side note - you can select some pervert encoding, like 'zip', 'base64', 'rot' and some of them will convert from string to string, but I believe the most common case is one that involves UTF-8/UTF-16 and string. ...
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Pandas selecting by label sometimes return Series, sometimes returns DataFrame

...duces instances that have a particular structure originated in the NDFrame base class, itself derived from the PandasContainer base class that is also a parent class of the Series class. Note that this is correct for Pandas until version 0.12. In the upcoming version 0.13, Series will derive also f...
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How to get current time in milliseconds in PHP?

... Short answer: 64 bits platforms only! function milliseconds() { $mt = explode(' ', microtime()); return ((int)$mt[1]) * 1000 + ((int)round($mt[0] * 1000)); } [ If you are running 64 bits PHP then the constant PHP_INT_SIZE equals t...
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eclipse won't start - no java virtual machine was found

...rgeAjay George 10.9k11 gold badge3636 silver badges4646 bronze badges 1 ...
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What is the difference between quiet NaN and signaling NaN?

... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers. Draft saved Draft discarded ...
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Java Error opening registry key

...w.exe and javaws.exe from your Windows\System32 folder and if you have an x64 system (Win 7 64 bits) also do the same under Windows\SysWOW64. If you can't find them at these locations, try deleting them from C:\ProgramData\Oracle\Java\javapath. ...