Interested to Buy Any Domain ? << Click Here >> for more details...
what are macros?what are its advantages and disadvantages in
c language?
- 2 Answers
- 49317 Views
- I also Faced
- E-Mail Answers
Answer Posted / deepedra kushwaha
A macro is a name given to a block of C statements as a
pre-processor directive. Being a pre-processor, the block of
code is communicated to the compiler before entering into
the actual coding (main () function). A macro is defined
with the preprocessor directive, #define.
The advantage of using macro is the execution speed of the
program fragment. When the actual code snippet is to be
used, it can be substituted by the name of the macro. The
same block of statements, on the other hand, need to be
repeatedly hard coded as and when required.
The disadvantage of the macro is the size of the program.
The reason is, the pre-processor will replace all the macros
in the program by its real definition prior to the
compilation process of the program.
Describe the advantages of using macro.
A macro is a name given to a block of the code which can be
substituted where the code snippet is to be used for more
than once.
- The speed of the execution of the program is the major
advantage of using a macro.
- It saves a lot of time that is spent by the compiler for
invoking / calling the functions.
- It reduces the length of the program.
| Is This Answer Correct ? | 16 Yes | 11 No |
Post New Answer View All Answers
If you have two 132KV distance scheme and you are using fibre for comms but the two relays on are not compatible interms of comms what can you use to allow communication between the two relays.
anyone send me aptitude and technical placement paper of Hewitt
what are the advantages as disadvantages of the V-model?
hi i am an CSE engg student and i cleared the PE exam of BEL 2012 both 24/07/012 and 01/08/2012 , so please if someone can help me with PE Interview question or subject or topics which i should cover that help me clear both Interview.PLZ help. my mail id is rjjkumar99@gmail.com
what is difference between server 2008R1 and 2008 server R2?
What do you like and dislike about working for this organisation?
I am pavani pursuing 4th B.Tech final semester i want to write the Group 2 Examination , Eligibility of that exam is all degree holders but to hold my Degree 3months are more. but the exam held on 3rd July 2012. i would be complete my B.Tech when exam to be held. so am i eligible to Group2 exam or not , please clarify my doubt.
explain software engineering practices
what is a structure in c language?
can i learn ad. java without learned core java? java is best or .net is best for summer training?
int main() { int d = 10; int m = 2; int y = 3603; int c = 0; int val; val = ( d + m + y + (y/4) + c) % 7; cout << val; return 0; }
please send aptitude test papers for reference with answers
What does "stdafx"header file do?
WHAT ARE THE ADVANTAGE OF SYSTEM ENGINEER
which is better php,asp.net,jsp? and why?
