signed and unsigned data types
Primitive Data Types
ąøąø£ąø°ą¹ąø ąøąøąø±ąø§ą¹ąøąø£ąøąø·ą¹ąøąøąø²ąøą¹ąøąø ąø²ąø©ąø² C++ ąø”ąøµąøąø±ąøąøąøµą¹
Integer (int)ą¹ąøą¹ąøŖąø³ąø«ąø£ąø±ąøą¹ąøą¹ąøąøą¹ąøąø”ąø¹ąø„ąøąø£ąø°ą¹ąø ąøąøąø±ąø§ą¹ąø„ąøąøąø³ąøąø§ąøą¹ąøą¹ąø”
Character (char) ą¹ąøą¹ąøŖąø³ąø«ąø£ąø±ąøą¹ąøą¹ąøąøą¹ąøąø”ąø¹ąø„ąøąø£ąø°ą¹ąø ąøąøąø±ąø§ąøąø±ąøąø©ąø£
Boolean (bool) ą¹ąøą¹ąøŖąø³ąø«ąø£ąø±ąøą¹ąøą¹ąøąøą¹ąøąø”ąø¹ąø„ą¹ąøąøµąø¢ąøąøŖąøąøąøą¹ąø²ąøąø·ąø true ą¹ąø„ąø° false
Floating point (float)ą¹ąøą¹ąøŖąø³ąø«ąø£ąø±ąøą¹ąøą¹ąøąøą¹ąøąø”ąø¹ąø„ąøąø£ąø°ą¹ąø ąøąøąø±ąø§ą¹ąø„ąøąøąøØąøąø“ąø¢ąø”
Double Floating Point ą¹ąøą¹ąøŖąø³ąø«ąø£ąø±ąøą¹ąøą¹ąøąøą¹ąøąø”ąø¹ąø„ąøąø£ąø°ą¹ąø ąøąøąø±ąø§ą¹ąø„ąøąøąøØąøąø“ąø¢ąø” ą¹ąøąø¢ąø”ąøµąøąø·ą¹ąøąøąøµą¹ąøąø²ąø£ą¹ąøą¹ąøąø”ąø²ąøąøąø§ą¹ąø²ąøąø±ąø§ą¹ąøąø£ float ąøŖąøąøą¹ąøą¹ąø²
Valueless (Void) ą¹ąøą¹ąøŖąø³ąø«ąø£ąø±ąøąøą¹ąø²ąø§ą¹ąø²ąøą¹ąøąø„ą¹ąø²
Wide Character ąøą¹ąøŖąø³ąø«ąø£ąø±ąøą¹ąøą¹ąøąøą¹ąøąø”ąø¹ąø„ąøąø£ąø°ą¹ąø ąøąøąø±ąø§ąøąø±ąøąø©ąø£ unicode
Data type modifiers
ą¹ąø£ąø²ąøŖąø²ąø”ąø²ąø£ąøą¹ąøą¹ąøąø³ąøŖąø±ą¹ąøąøą¹ąø²ąøąø„ą¹ąø²ąøąøąøµą¹ą¹ąøąøąø²ąø£ąøąø³ąø«ąøąøą¹ąøąø“ą¹ąø”ąø„ąøąøąøąø²ąø(Size)ą¹ąø„ąø°ąøąø³ąø«ąøąøąøą¹ąø§ąøąøą¹ąøąø”ąø¹ąø„(Range) ą¹ąøąøąø·ą¹ąøąøąøµą¹ąø«ąøą¹ąø§ąø¢ąøąø§ąø²ąø”ąøąø³ą¹ąø„ąø°ąøąø²ąø£ąø£ąø±ąøąøą¹ąøąø”ąø¹ąø„ąøŖąø³ąø«ąø£ąø±ąøą¹ąøą¹ąøąøą¹ąø²ąøąø±ąø§ą¹ąøąø£
Signed ą¹ąøą¹ąøŖąø³ąø«ąø£ąø±ąøąøąø³ąø«ąøąøąøą¹ąø§ąøąøą¹ąøąø”ąø¹ąø„ąøąøąøąøąø±ąø§ą¹ąøąø£ą¹ąø«ą¹ąøŖąø²ąø”ąø²ąø£ąøąø£ąø±ąøąøą¹ąø²ąøą¹ąø§ąøąøą¹ąøąø”ąø¹ąø„ąøąø±ąø§ą¹ąø„ąøąøąøµą¹ą¹ąøą¹ąøąøąø³ąøąø§ąøąø„ąøą¹ąøą¹
Unsigned ą¹ąøą¹ąøŖąø³ąø«ąø£ąø±ąøąøąø³ąø«ąøąøąøą¹ąø§ąøąøą¹ąøąø”ąø¹ąø„ąøąøąøąøąø±ąø§ą¹ąøąø£ą¹ąø«ą¹ąøŖąø²ąø”ąø²ąø£ąøąø£ąø±ąøąøą¹ąø²ąøą¹ąø§ąøąøą¹ąøąø”ąø¹ąø„ąøąøµą¹ 0 ąøąø¶ą¹ąøą¹ąø ąøąø°ą¹ąø”ą¹ąøŖąø²ąø”ąø²ąø£ąøąø£ąø±ąøąøą¹ąøąø”ąø¹ąø„ąøąø±ąø§ą¹ąø„ąøąøąøµą¹ą¹ąøą¹ąøąøąø³ąøąø§ąøąø„ąøą¹ąøą¹
Short ą¹ąøą¹ąøŖąø³ąø«ąø£ąø±ąøąøąø³ąø«ąøąøąøąøąø²ąøąøąø±ąø§ą¹ąøąø£ int ą¹ąø«ą¹ą¹ąøą¹ąøąø·ą¹ąøąøąøµą¹ąø„ąøąø„ąøą¹ąø«ąø„ąø·ąø 4 bytesą¹ąøą¹ąø 2 bytes ą¹ąø«ąø”ąø²ąø°ąøąø±ąøąøą¹ąøąø”ąø¹ąø„ąøąø±ąø§ą¹ąø„ąøąøąøµą¹ą¹ąø”ą¹ą¹ąø¢ąøąø°ąø”ąø²ąø
long ą¹ąøą¹ąøŖąø³ąø«ąø£ąø±ąøąøąø³ąø«ąøąøąøąøąø²ąøąøąø±ąø§ą¹ąøąø£ int ą¹ąø«ą¹ą¹ąøą¹ąøąø·ą¹ąøąøąøµą¹ą¹ąøąø“ą¹ąø”ąøąø¶ą¹ąøąøąø²ąø 4 bytes ą¹ąøą¹ąø 8 bytes ą¹ąø«ąø”ąø²ąø°ąøąø±ąøąøą¹ąøąø”ąø¹ąø„ąøąø±ąø§ą¹ąø„ąøąøąøµą¹ą¹ąø”ą¹ą¹ąø¢ąøąø°ąø”ąø²ąø
Data Type
Size (in bytes)
Range
short int
2
-32,768 to 32,767
unsigned short int
2
0 to 65,535
unsigned int
4
0 to 4,294,967,295
int
4
-2,147,483,648 to 2,147,483,647
long int
8
-9.223372e+18 to 9.223372e+18
unsigned long int
8
0 to 18,446,744,073,709,551,615
long long int
8
-9.223372e+18 to 9.223372e+18
unsigned long long int
8
0 to 18,446,744,073,709,551,615
signed char
1
-128 to 127
unsigned char
1
0 to 255
float
4
1.2E-38 to 3.4E+38
double
8
2.3E-308 to 1.7E+308
void
-
-
wchar_t
2 or 4
1 wide character
ąøŖąø£ą¹ąø²ąø file.cpp ąøąø·ą¹ąøąø§ą¹ąø² sizeData.cpp ą¹ąø„ą¹ąø§ąøąø±ąøąø„ąøąø code ąøą¹ąø²ąøąø„ą¹ąø²ąøąø„ąøą¹ąøąø„ą¹ąøąøµą¹ąøŖąø£ą¹ąø²ąø
// C++ program to sizes of data types
#include<iostream>
using namespace std;
int main()
{
cout << "Size of char : " << sizeof(char)
<< " byte" << endl;
cout << "Size of int : " << sizeof(int)
<< " bytes" << endl;
cout << "Size of short int : " << sizeof(short int)
<< " bytes" << endl;
cout << "Size of long int : " << sizeof(long int)
<< " bytes" << endl;
cout << "Size of signed long int : " << sizeof(signed long int)
<< " bytes" << endl;
cout << "Size of unsigned long int : " << sizeof(unsigned long int)
<< " bytes" << endl;
cout << "Size of float : " << sizeof(float)
<< " bytes" <<endl;
cout << "Size of double : " << sizeof(double)
<< " bytes" << endl;
cout << "Size of wchar_t : " << sizeof(wchar_t)
<< " bytes" <<endl;
return 0;
}ąøąøąø„ąøąø complier ą¹ąø„ąø° run ą¹ąøąø£ą¹ąøąø£ąø”
Output :
Size of char : 1 byte
Size of int : 4 bytes
Size of short int : 2 bytes
Size of long int : 8 bytes
Size of signed long int : 8 bytes
Size of unsigned long int : 8 bytes
Size of float : 4 bytes
Size of double : 8 bytes
Size of wchar_t : 4 bytesąøąø±ąø§ąøąø¢ą¹ąø²ąø ąøąø§ąø²ąø”ą¹ąøąøąøą¹ąø²ąøąøąøąøąøą¹ąøąø”ąø¹ąø„ unsigned int and int
#include <iostream>
using namespace std;
int main()
{
int A = -1;
unsigned int AA = 1;
cout<< " Size of char A :" << sizeof(A)<< "byte" << endl;
cout<< " Size of char A :" << sizeof(AA)<< "byte" << endl;
cout<< "A = "<<A<< endl;
cout<< "AA = "<<AA<< endl;
cout<< "A-A = "<<A-A<< endl;
cout<< "A-AA = " << A-AA<< endl;
return 0;
}
ąøąøąø„ąøąø complier ą¹ąø„ąø° run ą¹ąøąø£ą¹ąøąø£ąø”
Size of char A :4byte
Size of char A :4byte
A = -1
AA = 1
A-A = 0
A-AA = 4294967294 // max range of unsign 4 byte is 4294967295ąøŖąø£ą¹ąø²ąø file.cpp ąøąø·ą¹ąøąø§ą¹ąø² rangeData.cpp ą¹ąø„ą¹ąø§ąøąø±ąøąø„ąøąø code ąøą¹ąø²ąøąø„ą¹ąø²ąøąø„ąøą¹ąøąø„ą¹ąøąøµą¹ąøŖąø£ą¹ąø²ąø
#include <iostream>
#include <limits>
using namespace std;
int main()
{
cout<<"Limits of Data types:\n";
cout<<"unsigned char : "<<static_cast<int>(numeric_limits<unsigned char>::min())<<"to "<<static_cast<int>(numeric_limits<unsigned char>::max())<<endl;
cout<<"char : "<<static_cast<int>(numeric_limits<char>::min())<<"to "<<static_cast<int>(numeric_limits<char>::max())<<endl;
cout<<"short : "<<numeric_limits<short>::min()<<"to "<<numeric_limits<short>::max()<<endl;
return 0;
}ąøąøąø„ąøąø complier ą¹ąø„ąø° run ą¹ąøąø£ą¹ąøąø£ąø”
Output:
Limits of Data types:
unsigned char : 0to 255
char : -128to 127
short : -32768to 32767ą¹ąø«ąø„ą¹ąøąøą¹ąø²ąøąøąø“ąø
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