when is memory allocated for static variable in c++
Static variable In general, static memory allocation is the allocation of memory at compile time, before the associated program is executed, unlike dynamic memory allocation or automatic memory allocation where memory is allocated as required at run time.[1]
C++ classes Instances of a class data type are known as objects and can contain member variables, constants, member functions, and overloaded operators defined by the programmer.
Resource acquisition is initialization Both Clang and GNU Compiler Collection implement a non-standard extension to the C language to support RAII: the "cleanup" variable attribute.[12] The following macro annotates a variable with a given destructor function that it will call when the variable goes out of scope:
Limit of a function (the Dirichlet function) has no limit at any x-coordinate.
IEEE 754-1985 The leading 1 bit is omitted since all numbers except zero start with a leading 1; the leading 1 is implicit and doesn't actually need to be stored which gives an extra bit of precision for "free."
Standard deviation Let X be a random variable with mean value Î¼: