What is a symbolic constant, Computer Engineering

Assignment Help:

What is a symbolic constant? How it is defined ?

Symbolic constants are constants of any type declared by using the #define compiler directive. It is a preprocessor directive. Preprocessor' is a translation phase that is applied to your source code before the compiler proper gets its hands on it. Generally, the pre-processor performs textual substitutions on your source code. Macro is a type of pre-processor which replaces instances of one piece of text with another.

A preprocessor line shown below defines symbolic constant

#define name text

It defines a macro with the given name, having as its value the given replacement text. After that (for the rest of the current source file), wherever the preprocessor sees that name, it will replace it with the replacement text.

 


Related Discussions:- What is a symbolic constant

Estimate the size of the state space, 1. The missionaries and cannibals pro...

1. The missionaries and cannibals problem. Three missionaries and three cannibals are on the left river bank, with a boat that can hold one or two people. If on either side of the

Explain pointers, Explain pointers We can have a pointer pointing to a ...

Explain pointers We can have a pointer pointing to a structure just the same way a pointer pointing to an int, such pointers are called as structure pointers

What is component diagrams in uml, A component diagram is mainly useful wit...

A component diagram is mainly useful with teams of larger size. UML components are great to perform architectural landscape for an exact system. The component diagram permits to mo

Illustrate the history of computers, Q. Illustrate the history of computers...

Q. Illustrate the history of computers? Let's now consider history of computers since this will give fundamental information about technological development trends in computer

Explain the term- scan insertion, Explain the term- Scan Insertion Sca...

Explain the term- Scan Insertion Scan Insertion is completed by a tool and results in all (or most) of your design's flip-flops to be changed by special "Scan Flip-flops". Sca

The constructed datatype of c, The constructed datatype of C is known as ...

The constructed datatype of C is known as Structure is a constructed datatype of C.

Explain disk cartridges, Q. Explain Disk Cartridges ? Disk Cartridges:...

Q. Explain Disk Cartridges ? Disk Cartridges: Removable disk cartridges are an option to hard disk units as a form of secondary storage. Cartridge generally comprises one or

?????, c program??????????

c program??????????

What is an on"*-input filed" statement, What is an on"*-input filed" statem...

What is an on"*-input filed" statement? ON *-INPUT The ABAP/4 module is known as if the user has entered the "*" in the first character of the field, and the field has th

Evaluate speed of disk drive, Q. Evaluate Speed of disk drive? Drive S...

Q. Evaluate Speed of disk drive? Drive Speed: Amount of information which can be transferred in or out of memory in a second is called as disk drive speed or data transfer ra

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd