Many programming languages allow the use of one symbol to represent more than one operation. In these cases the meaning of the symbol is determined by the data type of the operands. For example, the symbol traditionally indicates addition when its operands are numeric, but in some languages, s...
In this case, the operator is invoked by the first operand. Meaning, the line Complex c3 = c1 + c2; translates to c1.operator+(c2); Here, the number of arguments to the operator function is reduced by one because the first argument is used to invoke the function. ...
overloading Many programming languages allow the use of one symbol to represent more than one operation. In these cases the meaning of the symbol is determined by the data type of the operands. For example, the symbol traditionally indicates addition when its operands are numeric, but in some ...
For example, a square is a rectangle, meaning we could have a Square class that inherits from a Rectangle class. And let's say one of the methods that was inherited was to calculate the perimeter. Well, the formula for calculating the perimeter of a square is different than the formula ...
In Python, methods that have two underscores,__, before and after their names have a special meaning. For example,__add__(),__len__()etc. These special methods can be used to implement certain features or behaviors. Let's use the__add__()method to add two numbers instead of using...
oh well, now I get the meaning of "this" in this stamement "this can only be called from a constructor" Actually it should have been, "this() can only be called from a constructor" Well, I hate this. where "this" = name of the keyword. I wish if gosling had replaced this ...
PHP, like Java, have length aware strings, meaning the object header knows how long your string is. They are binary safe, and not null (0x00) terminated. mb_string functions ignore that, and parse the entirety of the string, to figure out what is what. strlen(string) simply tells you...
is not a panacea for all challenges facing HCWs. Our results indicate that role overload dampens the positive impact of autonomy, meaning that managing HCWs’ perception of workload or better clarify roles and responsibilities of HCWs is critical to allow job autonomy to generate a cascade of ...
A program can attribute a semantic meaning to a particular value of an input in a way that impacts the signature. For example, a program may take a string where the value of the string determines the type of what is returned. As a particular example, passing “div” as the argument to...
In general, the type system is used to resolve the meaning of an overloaded function name, i.e., to choose a particular function from the set of functions to which the name maps. The particulars depend upon the nature of the type system. Some languages, for example, C++, are “...