C++ Keywords

"const","prevents a variable from being modified by your program"
"volatile","informs the compiler that a variable may be changed by factors outside of the program"
"auto","declares a local variable"
"extern","declares a variable but does not allocate storage for it"
"static","a variable that maintains its value between function calls"
"register","requests that a variable be optimized for access speed"
"enum","declares an enumeration"
"typedef","lets one create a new name for an existing data type"
"sizeof","a compile-time operator that obtains the size of a type or variable"
"new","allocates dynamic memory"
"delete","frees previously allocated dynamic memory"
"struct","begins a structure declaration"
"union","begins a union declaration"
"class","begins a class declaration"
"public","declares the public members of a class"
"private","used to declare the private members of a class"
"inline","used to declare a small function whose code is expanded in line rather than called"
"friend","gives a non-member function access to the private members of a class"
"this","a pointer to the object that invokes a member function"
"operator","used to overload operators"
"protected","declares protected members or inherits a protected class"

"virtual","a type of inheritance that ensures that only one copy of a base class will be present in any derived class"
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