CALL BY Meaning and
Definition
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Call by is a common term in computer programming that refers to different methods for passing arguments to a function or subroutine. It determines how values or references are evaluated and delivered to a function during runtime. There are typically three main variations of call by:
1. Call by value: This method involves passing the actual value of an argument to a function. It creates a copy of the value, which is then utilized within the function. Any modifications made to the value inside the function do not affect the original value outside the function.
2. Call by reference: In this approach, the memory address or reference to the actual variable is passed to the function. As a result, any changes made to the variable inside the function directly affect the original value outside the function. This method can be useful when working with large data structures or when a function needs to update multiple variables.
3. Call by sharing: Also known as call by object-sharing or call by object, this method is similar to call by reference but operates specifically on objects rather than simple variables. When an object is passed to a function, a reference to the object is shared, but the object itself is not duplicated. Thus, any changes made to the object's properties inside the function are noticeable outside the function.
The choice of call by method depends on considerations such as memory usage, efficiency, and desired behavior of the program. Different programming languages may have different defaults or options for call by, allowing developers to select the most appropriate method for their specific needs.
Common Misspellings for CALL BY
- xall by
- vall by
- fall by
- dall by
- czll by
- csll by
- cwll by
- cqll by
- cakl by
- capl by
- caol by
- calk by
- calp by
- calo by
- call vy
- call ny
- call hy
- call gy
- call bt
- call bg
Etymology of CALL BY
The phrase "call by" is not a standalone term, but rather a prefix used in programming languages to describe different parameter-passing mechanisms. The etymology of these terms can be traced back to the early development of programming languages and the ideas behind how values are passed between functions or procedures.
One of the earliest parameter-passing mechanisms in programming languages is "call by value". This term dates back to the early days of programming languages like Fortran, and it refers to passing the value of a variable as an argument to a function. The function receives a copy of the value, and any modifications made to the parameter within the function won't affect the original variable.
Another commonly used parameter-passing mechanism is "call by reference". This term emerged in programming languages like ALGOL and refers to passing a reference or an address of a variable to a function.
Idioms with the word CALL BY
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call by a name
The idiom "call by a name" refers to the act of addressing or referring to someone or something using a specific name or title. It implies using a specific identifier to address or describe a person or thing, often highlighting a particular characteristic or role.
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