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

Illustrate the accumulator architecture, Accumulator Architecture: An accu...

Accumulator Architecture: An accumulator is anespecially designated register which supplies one instruction operand and receives result. Instructions in such machines are usually

State the benefits of encapsulation, State The Benefits of Encapsulation ...

State The Benefits of Encapsulation To hide the details of a class, you can declare that data or implementation in the private part of class so that other class clients will n

Auto increment mode and condition code flags, Described auto increment mode...

Described auto increment mode of addressing? Ans: Effective address of the operand is the contents of a register mention in the instruction. After finishing the accessing t

When can we see layer groups in gimp, Sometimes it is nice to place layers ...

Sometimes it is nice to place layers in groups. It makes them simple to organize when you have lots of them. It also means you can simply apply the similar effect to lots of layers

Advantages of using the electronic mail system, Question : a) E-mail is...

Question : a) E-mail is a common feature nowadays in IT. What does it stands for and what is it used for? b) Briefly describe four advantages of using the electronic mail s

Define throughput, Define throughput?  Throughput in CPU scheduling is ...

Define throughput?  Throughput in CPU scheduling is the number of processes that are completed per unit time. For long processes, this rate might be one process per hour; for s

Why the tcp checksum is necessary, Is the TCP checksum necessary? Yes, ...

Is the TCP checksum necessary? Yes, TCP Checksum is essential. TCP layer is liable for error detection, transmission of packets if needed, error control, reassembly of packe

Determine the o/p for JK flip flop with J=1 & K=0, For JK flip flop with J=...

For JK flip flop with J=1, K=0, the output after clock pulse will be ? Ans. The output will be 1 after clock pulse.

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