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C increment and decrement operators. c programming has operators increment ++ and decrementto change the fee of an operand (constant or variable) by means of 1.. increment ++ increases the price by 1 while decrementdecreases the value by means of 1. those operators are unary operators, meaning they best operate on a single operand. In c++, scope decision operator is ::. it is used for following functions. 1) to get right of entry to a international variable whilst there's a neighborhood variable with equal call:. C++ is a more moderen language, based totally on c, that adds many greater modern programming language functions that make it easier to program than c. basically, c++ continues all components of the c language, while presenting new features to programmers that make it simpler to write useful and complex applications. That pretty a great deal removes the need to mix c and c++, plus it's going to cause you to be greater careful (and probably —with any luck! — discover ...