Shloim questions

Shloim answers

• Why does "A=3; A=4 echo $A" produce 3 (instead of 4) in Bash? [duplicate]
• Socket recv buffer size
• Is there a class in Java which keeps duplicates but not order of data?
• boost::unique_lock and boost::shared_lock for reader writer locks
• Java generics & incompatible types using <S extends {class}>
• How to convert iterators of different types
• script to add namespace to c++ files
• Avoid If-else code smell with creation of objects which depend upon specific conditions
• Why does getaddrinfo return a port number of 20480 for HTTP?
• how to sum up a vector of vector int in C++ without loops