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What is the preferred/idiomatic way to insert into a map?

... } private: std::vector<double> m_vec; }; int main(int argc, char* argv[]) { std::map<int,Widget> map_W; ptime t1 = boost::posix_time::microsec_clock::local_time(); for(int it = 0; it < 10000;it++) { map_W.insert(std::pair<int,Widget>(it,Widget...
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Using Node.JS, how do I read a JSON file into (server) memory?

...What that gets you is an object, and it doesn't even bother to implement tostring(). – David A. Gray Apr 9 '18 at 3:05 3 ...
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How to center align the cells of a UICollectionView?

... This is good solution thanks, however this does require some extra calculations on my side. – RVN Nov 27 '12 at 16:49 ...
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Converting a Java Keystore into PEM Format

... KeyStore ks = KeyStore.getInstance("jks"); /* Load the key store. */ ... char[] password = ...; /* Save the private key. */ FileOutputStream kos = new FileOutputStream("tmpkey.der"); Key pvt = ks.getKey("your_alias", password); kos.write(pvt.getEncoded()); kos.flush(); kos.close(); /* Save the cer...
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GCC dump preprocessor defines

... Late answer - I found the other answers useful - and wanted to add a bit extra. How do I dump preprocessor macros coming from a particular header file? echo "#include <sys/socket.h>" | gcc -E -dM - or (thanks to @mymedia for the suggestion): gcc -E -dM -include sys/socket.h - < /de...
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How do I work around JavaScript's parseInt octal behavior?

... @Grodriguez, and when 0 in |0 is a string? – Oleg V. Volkov Oct 24 '14 at 16:29 ...
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How to make part of the text Bold in android at runtime?

A ListView in my application has many string elements like name , experience , date of joining , etc. I just want to make name bold. All the string elements will be in a single TextView . ...
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How to check whether a file is empty or not?

...irst_char: ... print "file is empty" #first character is the empty string.. ... else: ... my_file.seek(0) #first character wasn't empty, return to start of file. ... #use file now ... file is empty ...
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How can I manually generate a .pyc file from a .py file

...part of the python standard library, so you don't need to install anything extra to use it. This works exactly the same way for python2 and python3. python -m compileall . share | improve this answ...
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What is the best way to concatenate two vectors?

...erator> #include <iostream> #include <sstream> #include <string> template<template<typename, typename...> class Container, class T> std::string toString(const Container<T>& v) { std::stringstream ss; std::copy(v.begin(), v.end(), std::ostream_itera...