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| Data Types C Plus Plus Programming Language |
Data Types C Plus Plus Programming Language
Data
Types C Plus Plus: A
Data type is a type of data. Data types can be used C++ Program. The C++ language
provides different data types. which can be used in the C++ language program.
Data types provide in the C++ library.
Data
types specify how we enter data into our programs and what type of data we
enter. The C++ language has a predefined set of data types to handle various
kinds of data that we use in our program.
Data types are two types in C++ Language
1.
Pre-defined Data Types
2.
User-defined Data Types or Derived Data Types.
Pre-defined
Data Types: A
pre-defined data type is already provided in the c Library.
pre-defined data types like integer, floating and Character are pre-defined
data types in C++ Language.
1.integer Type (int)
2.floating Type(float)
3.Character Type(char)
User-defined Data Types or Derived Data Types
1.
Pointer Types
2.
Array
3.
Structure
4. Union
These
data types have different storage capacities. C++ language supports 2 different
types of data types: primary and Derived
data types.
Primary
data types: These
are fundamental data types in C++ namely integer (int), floating(float),
character (char), and void.
Derived
data types: Derived
data types are arrays, functions, structures, and pointers. These are discussed
in detail later.
integer Data types in C++
Data Types | Size | Bytes Range |
Short | 2 | -32768 To +32767 |
Int | 2 | -32768 To +32767 |
Unsigned int | 2 | 0 To +65536 |
Long | 4 | -214748 To +214748 |
| Unsigned long | 4 | 0 To 4,294,967 |
float Data types in C++
|
Data Types |
Size Byte |
Range |
|
Float |
4 |
3.4E-38 To +3.4E+38 |
|
Double |
8 |
1.7+308 To +1.7E+308 |
|
Long Double |
10 |
3.4-4932 To +1.1+4932 |
Char Data types in C++
|
Data Types |
Size Byte |
Range |
|
Char |
1 |
-127 to +128 |
|
signed char |
1 |
-128 to +128 |
|
unsigned char |
1 |
-0 to +255 |
How To Use Data Types Size in C++?
#include <iostream> #include <stdlib.h> #include <limits.h> #include <float.h> using namespace std; int main() { int args; char** args; cout<<"CHAR_BIT:"<<CHAR_BIT<<"\n"; cout<<"CHAR_MAX:" <<CHAR_MAX<<"\n"; cout<<"CHAR_MIN:"<<CHAR_MIN<<"\n"; cout<<"INT_MAX:"<<INT_MAX<<"\n"; cout<<"INT_MIN:"<<INT_MIN<<"\n"; cout<<"LONG_MAX:"<<LONG_MAX<<"\n"; cout<<"LONG_MI:"<<LONG_MIN<<"\n"; cout<<"SCHAR_MAX:"<<SCHAR_MAX<<"\n"; cout<<"SCHAR_MIN:"<<SCHAR_MIN<<"\n"; cout<<"SHRT_MAX:"<<SHRT_MAX<<"\n"; cout<<"SHRT_MIN:"<<SHRT_MIN<<"\n"; cout<<"UCHAR_MAX:"<<UCHAR_MAX<<"\n"; cout<<"UINT_MAX:"<<UINT_MAX<<"\n"; cout<<"ULONG_MAX:"<<ULONG_MAX<<"\n"; cout<<"USHRT_MAX:"<<USHRT_MAX; return 0; } *****OUTPUT***** CHAR_BIT: 8 CHAR_MAX: 127 CHAR_MIN: -128 INT_MAX : 2147483647 INT_MIN: -2147483648 LONG_MAX: 2147483647 LONG_MIN: -2147483648 SCHAR_MAX: 127 SCHAR_MIN: -128 SHRT_MAX : 32767 SHRT_MIN: -32768 UCHAR_MAX: 255 UINT_MAX : 4294967295 ULONG_MAX: 4294967295 USHRT_MAX : 65535 |
How To Use float Data Types in C++?
#include <iostream> #include <stdlib.h> #include <limits.h> #include <float.h> using namespace std; int main() { int args; char** args; cout<<"Storage size for float :"<<sizeof(float)<<"\n"; cout<<"FLT_MAX: "<<(float) FLT_MAX<<"\n"; cout<<"FLT_MIN: "<<(float) FLT_MIN<<"\n"; cout<<"-FLT_MAX: "<<(float) -FLT_MAX<<"\n"; cout<<"-FLT_MIN: "<<(float) -FLT_MIN<<"\n"; cout<<"DBL_MAX: "<<(double) DBL_MAX<<"\n"; cout<<"DBL_MIN: "<<(double) DBL_MIN<<"\n"; cout<<"Precision: "<<FLT_DIG<<"\n"; return 0; } *****OUTPUT***** Storage size for float:4 FLT_MAX: 3.40282e+038 FLT_MIN: 1.17549e-038 -FLT_MAX: -3.40282e+038 -FLT_MIN: -1.17549e-038 DBL_MAX: 1.79769e+308 DBL_MIN: 2.22507e-308 Precision: 6 |
Void Data-Type: Void type means no value. This is usually used to specify the type of functions. For Example void main().
Data Types And Their Control Strings
3x3
Table
|
Data Types |
Size(bytes) |
Format String |
|
Char |
1 |
%c |
| Unsigned Char | 1 | %c |
| Short or int | 2 | %i or %d |
| Unsigned int | 2 | %u |
| Long | 4 | %ld |
| Unsigned Long | 4 | %lu |
|
Float |
4 |
%f or %g |
|
Double |
8 |
%lf |
|
Long Double |
10 |
%lf |
|
Enum |
2 |
%d |
Type Modifiers in C++ Programming Language
Type Modifiers: The keywords signed, unsigned, short and long are type modifiers. A type modifier changes the meaning of a basic data type and produces a new data type. Each of these type modifiers applies to the basic data type int.
The modifiers signed and unsigned are also applicable to the type char. The long-type modifier can be useful to double types.
Example: Long, int, Unsigned Long int.
#include<iostream> using namespace std; void main() { short t =1; long k = 52111; unsigned u = 20; signed j = -1; clrscr(); court<<“\n t =%d “<<t; cout<<“\n k = %ld”<<k; cout<<“\n u = %u”<<u; cout<<“\n j =%d”<<j; } *****OUTPUT***** k = 54111 n = 10 j = -10 |
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