datatypes in c++ and its sizes

What is mean by datatypes in C++ and what is the sizes of different datatypes?

View Answers

July 25, 2011 at 2:56 PM

Data Types are used to identify what kind of data a variable is holding...such as if a variable is integer or char type? For example ..

a = 1; or a = "orange";

how will you recognize what type of value the variable "a" have ..at runtime?

That is the only reason we use datatypes like int, char, double etc..

List of DataTypes

char - 1byte
short int (short) - 2bytes
int - 4bytes
long int (long) - 4bytes
bool - 1byte (true or false)
float - 4bytes
double - 8bytes
long double - 8bytes
wchar_t - 2 or 4 bytes

Advertisements

C++
C++ How can i write this in dev c

c#
c# how to find out the size of the BMP image in C

c++
c++ Assume vector "x" of integers with values of 7, 3, 5, 8, 1, 9...) increments its control variable; 3.2) has a control variable named "i," with an initial of the value of variable "a"; 3.3) has a final value of its control

ModuleNotFoundError: No module named 'statscraper-datatypes-python'
ModuleNotFoundError: No module named 'statscraper-datatypes-python' �...: No module named 'statscraper-datatypes-python' How to remove the ModuleNotFoundError: No module named 'statscraper-datatypes-python' error

ModuleNotFoundError: No module named 'aiida-gaussian-datatypes'
ModuleNotFoundError: No module named 'aiida-gaussian-datatypes' Hi...: No module named 'aiida-gaussian-datatypes' How to remove the ModuleNotFoundError: No module named 'aiida-gaussian-datatypes' error? Thanks �

ModuleNotFoundError: No module named 'datatypes-date-time'
ModuleNotFoundError: No module named 'datatypes-date-time' Hi, My... named 'datatypes-date-time' How to remove the ModuleNotFoundError: No module named 'datatypes-date-time' error? Thanks Hi

ModuleNotFoundError: No module named 'datatypes-timex-expression'
ModuleNotFoundError: No module named 'datatypes-timex-expression' Hi...: No module named 'datatypes-timex-expression' How to remove the ModuleNotFoundError: No module named 'datatypes-timex-expression' error? Thanks

c++
c++ use a prgrm as an example to xplain-: a)class b)object c)message d)cope resolution operator

c++
c++ write a programme that calculates the area and circumference of a rectangle

c#
c# how to find out the size of the BMP image

c++
c++ i use turbo c++...i want to change the background color...what is the command for it and the header file used

C++
C++ dear sir How to create windows form application for login screen using C++? USER Name -TESTADMIN Password -testuser

c++
c++ differenciate btw.-a)local & public variables b)pre-defined & user defined functions c)fnctn prototype,defination & fnctn code.use code examples

C++
C++ differenciate btw.-a)local & public variables b)pre-defined & user defined functions c)fnctn prototype,defination & fnctn code.use code examples

C++
C++ Describe the principle advantages of deploying a linked list versus a static array when implementing a Queue or a Stack

c++
c++ write a prgrm tht accepts 3 integer values,then with a function to swap the values

C++
C++ Trace the bubble sort using the following integers,which represent the elements in an array. 5,7,3,8,6,7,3

C#
C# i need a code that will make program perform the basic operations upon the data Listview save, update and cancel

C++
C++ I have been asked to write a programme that gets five values,gets the sum,average and product please help me

c++
c++ write a program that gets a key or character from the keyboard and displays it ASII code in decimal, hexadecimal and binary form.It must also give a description of the key pressed

c++
c++ write a prgrm tht calculates the surface area of a cylinder.the prgrm shld find the circumfrance and have a function that calculates the fadius and another to calculate the surface area

C++
C++ write a prgrm tht gets five values,gets the sum,average &...; #include <conio.h> void main() { clrscr(); int a,b,c,d,e,sum; float average...;>b>>c>>d>>e; sum=a+b+c+d+e; average=sum/5; product=a*b*c*d

c++
c++ .write a program that accepts 5 subjects of a student,it should have a function to calculate the average & another function to grade.grade should be as follows-<40=E,40-49=D,50-59=C,60-69=B & >70

c++
c++ Consider the following function: int funcExercise7(int list[], int size) { int sum = 0; for (int index = 0; index < size; index++) sum = sum + list[index]; return sum

c++
c++ Consider the following declarations: class xClass { public: void... private members does class xClass have? c. How many constructors does class xClass.... Write a C++ statement that prints the values of the data members of the object

C#
C# register form i want to generate a user id automatically after filling their register form and i want to show their id to their email? please reply me soon

c++
c++ Consider the following declarations: class xClass { public: void func(); void print() const; xClass (); xClass (int, double); private: int u... private members does class xClass have? c. How many constructors does class xClass

c++
c++ Write a console based C++ program that reads student information from a text file, build an array of objects of type class StudentInfo... name with the minimum GPA 7) Display Student GPAs as Letter Grades (A, B, C, D

c++
c++ .write a prgrm tht accepts 5 subjects of a student,it shld hv a function to calculate the average & another function to grade.grade shld be as follows-<40=E,40-49=D,50-59=C,60-69=B & >70

c++
c++ Characterize the following algorithm in terms of Big-O notation. Also find the exact number of additions executed by the loop. (Assume that all variables are properly declared.) for (int i = 1; i <= n; i++) sum = sum + i

c++
c++ Characterize the following algorithm in terms of Big-O notation. for (int i = 1; i <= n; i++) for (int j = 1; j <= n; j++) for (int k = 1; k <= n; k++) cout << i + j + k

C++
C++ . Consider the definition of the following class: class CC { public: CC(); //Line 1 CC(int); //Line 2 CC(int, int); //Line 3 CC(double, int); //Line 4 . . . private: int u; double v

c++
c++ Write the definition of the class dayType that implements the day of the week in a program. The class dayType should store the day... on an object of type dayType: a. Set the day. b. Print the day. c. Return the day

C++
C++ Hi I do not understand the question stated below. Does anyone... and the second row are the two generated numbers. b g c z k e <- letter index... for clarification on the above question. Element a b c â�?�¦â�?�¦â�?�¦ x y z Index 0 1 2

c++
c++ write a programme that calculates the area and circumference of a rectangle #include<conio.h> #include<iostream.h> class rect { int l,b; int area; int peri; public: void get_rect() { cout<<"\n

C,C++
C,C++ Sir, 100&30 gives output 4 in C++ and 100|30 gives output 116 How & and | gives output 4 and 116

C,C++
C,C++ int i=100,j=20; int c=i&j; int r=i|j; printf("%d",c); printf("%d",r); #include<stdio.h> #include<conio.h> void main(){ int i=100,j=20; int c=i&j; int r=i|j; printf("%d",c); printf("%d",r

C Array copy example
C Array copy example In this section, you will learn how to copy an array in C. The example below contains two arrays: array1 and array2 with sizes 5 respectively. Here

c/c++ - Development process
c/c++ Creating animation using c/c++. The code for moving an object using c/c

c/c++ - Development process
c/c++ I need the code for developping two dice and roll them using c/c++. Thanks

variable declaration in c and c++
variable declaration in c and c++ Comparison and an example of variable declaration in C and C

C Tutorials
C Tutorials In this section we have given large number of tutorials on C programming Language. C programming language is used to develop applications mostly

C/C++ - Development process
C/C++ I need the code for playing the backgammon game using C/C++.Im using turbo C. I`ve already design the board.I badly need the code for playing this game

Ads