Example of arrays pointers, Computer Engineering

Assignment Help:

Q. Example of arrays pointers?

General form of declaration of array in Fortran 90 is

type, DIMENSION(bound) [,attr] :: name

E.g. the declaration 

        INTEGER, DIMENSION(5): A

Declare an array A of size 5.

General representation of declaration of array in C is 

type array_name [size]

E.g. declaration A

   int A[10]

Declares an array of size 10.

Fortran 90 allows using particular sections of an array. To access a part of an array you require name of the array followed by two integer values splitted by colon enclosed in parentheses. The integer values symbolize indices of section needed. E.g. a (3:5) denotes to elements 3, 4, 5 of array, a(1:5:2) denotes to elements 1, 3, 5 of the array and b(1:3, 2:4) denotes to elements from rows 1 to 3 and columns 2 to 4.  In C there is just one type of array whose size is determined statically although there are provisions for dynamic allocation of storage by dynamic memory allocation functions such as malloc and calloc functions and pointers. In Fortran 90 there are 3 probable kinds of arrays depending on binding of an array to some amount of storage: Static arrays with fixed size at the time of declaration and can't be changed at the time of execution, Automatic arrays or Semi-dynamic arrays: the size is decided after entering a subroutine and arrays can be created to match the exact size needed however local to a subroutine and Allocatable arrays or Dynamic arrays: the size can be changed at the time of execution.


Related Discussions:- Example of arrays pointers

Draw back of assigning one bit position to control signals, What is the dra...

What is the draw back of assigning one bit position to each control signals? Assigning individual bits to every control signal results in long microinstructions due to the numb

Explain concurrent sharing, Explain Concurrent sharing. Concurrent s...

Explain Concurrent sharing. Concurrent sharing: Some number of programs may share a file concurrently. While this is the case, this is essential to ignore mutual interferen

Registers - processor, These will be independent of each other and will not...

These will be independent of each other and will not affect to each other, and so they can be fed into two different implementations units and run in parallel. The ability to remov

What is the difference among conventional and HD T.V, a. Write down the sal...

a. Write down the salient difference among conventional T.V. and High Definition TV (HDTV) and also highlight the various benefits of digital representation for video. b. Video

How to join to mwseries from power builder 8.0, Using CICS Transaction Gate...

Using CICS Transaction Gateway we can join MQ Series with Power Builder 8.0

Explain transformational analogy, Question 1 Why is it important that a...

Question 1 Why is it important that an expert system be able to explain why and how questions related to a problem solving session. 2 Give the architecture of an Expert syst

The disadvantage of specifying parameter, The disadvantage of specifying pa...

The disadvantage of specifying parameter during instantiation are: -  This has a lower precedence when compared to assigning using defparam.

What are advantages and drawbacks of latches, What are advantages and drawb...

What are advantages and drawbacks of latches? Advantages and drawbacks of latches: Area of a latch is classically less than a Flip Flop. It consumes less power, becaus

What is trp, TRP is the number of clock cycles required to terminate access...

TRP is the number of clock cycles required to terminate access to an open row of memory, and open access to the next row. It stand for row precharge time.

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