Why do we need virtual functions in C++?

c++polymorphismvirtual-functions
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Why does an overridden function in the derived class hide other overloads of the base class?

c++polymorphismoverriding
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How do I execute a command and get the output of the command within C++ using POSIX?

posixc++return-valueprocesssystem
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What is "Argument-Dependent Lookup" (aka ADL, or "Koenig Lookup")?

c++c++-faqargument-dependent-lookupname-lookup
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What are the differences between struct and class in C++?

c++c++-faqoopclassstruct
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android-9.0-pierule-of-threeattributeerroruploadm2eclipsenavbaruikitexpansionsynchronizationregressionresponsedate-rangeswitch-statementexceptionjava-10segmentation-faultstatic-filesplpgsqlvlookupargs