Section 1.3 Operators. Once we know of the existence of variables and constants we can begin to operate with them. The assignation operator serves to assign a value to a variable. It is necessary to emphasize that the assignation operation always takes place from right to left and never at the inverse. Consider also that we are only assigning the value of b to a and that a later change of b would not affect the new value of a .
Module is the operation that gives the rest of a division of two integer values.
Increase and decrease. They increase or reduce by 1 the value stored in a variable. Its existence is due to that in the first C compilers the three previous expressions produced different executable code according to which one was used. Nowadays this type of code optimization is generally done automatically by the compiler. A characteristic of this operator is that it can be used both as a prefix or as a suffix .