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

Page directive include, What is the difference between, page directive incl...

What is the difference between, page directive include, action tag include? Ans) One difference is whereas using the include page directive, in translation time it is making t

What are different ways synchronize between two clock domain, What are the ...

What are the different ways synchronize between two clock domains? The following section describes clock domain interfacing one of the biggest challenges of system-on-chip (SOC

Explain language processing, System Software 1. Explain language proces...

System Software 1. Explain language processing? Explain its activities in detail. 2. Discuss briefly about Assembler directives. Also explain about Macro definition and call

Is strategy - information system, IS strategy - Information System As ...

IS strategy - Information System As an operations manager when attempting to navigate your organisation through the information landscape and make best use of the available sy

print the sum of the numbers in the file, Make a file which kepts on every...

Make a file which kepts on every line a letter, a space, and a real number.  For example, it may look like this: e 5.4 f 3.3 c 2.2 f 1.1 c 2.2 Write a script that uses textscan to

What do you mean by prototype, Q. What do you mean by Prototype? A prot...

Q. What do you mean by Prototype? A prototyping approach lay emphasis on the construction model of a system. Designing and building a scaled-down though functional version of a

Determine about the security- accidental damage, Determine about the securi...

Determine about the security- accidental damage accidental damage is best guarded against by keeping back up files or use Grandfather-Father-Son (GFS) method; also use of passw

Command mode using vi editor, What does the c$ command do from command mode...

What does the c$ command do from command mode using Vi Editor? Ans) C$ will start from the character under the curser till the finish of line. So when you use this command it wi

What are the probabilities that the patient has the virus, In a clinic 0.15...

In a clinic 0.15 of the patients have got the HIV virus. Assume a blood test is carried out on a patient. If the patient has got the virus the test will turn out positive with prob

Script in multi user mode, What Component of LoadRunner would you use to pl...

What Component of LoadRunner would you use to play Back the script in multi user mode? Ans) The Controller component is used to playback the script in multi-user mode. This is c

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