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

What are the kernel threads, What are the Kernel threads Kernel threads...

What are the Kernel threads Kernel threads are supported directly by the operating system .Thread creation; scheduling and management are done by the operating system. Thus the

Explain what are the different hazards, There are situations, called hazard...

There are situations, called hazards that stop the next instruction in the instruction stream from implementing during its designated clock cycle. Hazards decrease the performance

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

Describe the booch methodology, Object Oriented Analysis and Design 1. ...

Object Oriented Analysis and Design 1. What are the advantages of object-oriented systems? 2. Describe the Booch Methodology. 3. Justify that UML is a language for modeli

What is cache memory, Q. What is Cache Memory? Cache memory is a very f...

Q. What is Cache Memory? Cache memory is a very fast and small memory between CPU and main memory whose access time is closer to processing speed of CPU. It behaves as a high-s

Explain physical characteristics of magnetic disk, Q. Explain Physical Char...

Q. Explain Physical Characteristics of magnetic disk? Figure below lists main features that differentiate among different types of magnetic disks. First head may either be fixe

What are rimm, What are RIMM? RDRAM chips can be assembled into larger ...

What are RIMM? RDRAM chips can be assembled into larger modules known as RIMM. It can hold up to 16 RDRAM

Explain dataflow computation model, Explain dataflow computation model ...

Explain dataflow computation model An option to the von Neumann model of computation is a dataflow computation model. In a dataflow model the control is tied to the flow of dat

Secondary storage - computer architecture, Secondary storage: Secondar...

Secondary storage: Secondary storage (or external memory) differs from primary storage in that aspect it is not accessible by the CPU directly. The computer typically uses its

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