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

Develop a regular expression for real number and identifier, Develop a regu...

Develop a regular expression for Real number with optional fraction and Identifier. (i) A regular expression for real number with optional fraction is [+ | -] (d) +. (d)* (i

Integrating virtual memory, Integrating Virtual Memory, TLBs, and Caches - ...

Integrating Virtual Memory, TLBs, and Caches - computer architecture:   There are 3 types of misses: 1. a cache miss 2. TLB miss 3. a page fault 2 techniqu

When will the current screen processing terminates, When will the current s...

When will the current screen processing terminates? A current screen processing terminates when control reaches either a Leave-screen or the end of PAI.

Define syntax of barrier directive, Q. Define syntax of barrier directive? ...

Q. Define syntax of barrier directive? Barrier Directive  The syntax of barrier directive is  #pragma omp barrier When a thread attains barrier it waits till all threa

In which network configuration all data/information pass, A distributed net...

A distributed network configuration in which all data/information pass through a central computer is (A)  Bus network                            (B) Star network (C)  Rin

What are universal gates, What  are  universal  gates.  Construct  a  lo...

What  are  universal  gates.  Construct  a  logic  circuit  using  NAND  gates  only  for  the expression x = A . (B + C). Ans. Universal Gates: NAND and NOR Gates both are t

Decomposition model of parallel programming, The PVM system supports functi...

The PVM system supports functional and data decomposition model of parallel programming. It attaches with C, C++, and FORTRAN. The C and C++ language bindings for the PVM user inte

What are the advantages of a smart card, What are the advantages of a Smart...

What are the advantages of a Smart Card? Advantages of Smart Card as given below: a. This provides convenience and assists for multiple currencies over borders. b. Us

Different types of coding in digital electronics, The code where all succes...

The code where all successive numbers differ from their preceding number by single bit is ? Ans. Gray Code, where all successive numbers are different from their preceding nu

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