- User defined
Primitive/Pre-defined data type:Primitive data types are the basic data types that are needed for performing general operations.
Example: int, char, float, double
User defined data type:User defined data types are defined by user according to their need. They are defined or created from the primitive data types.
Example: struct, union, array, pointer
Derived data types:Derived data types are basically the primitive data type with increased range of values it can store.
Example: short, long long int, double Below is a list of C data types:
|Data type||Size||Range||Format specifier|
|char||1 byte||-127 to +127||%c|
|unsigned char||1 byte||0 to 255||%c|
|short||2 byte||-32,767 to 32,767||%hi, %d, %i|
|unsigned short||2 byte||0 to 65,535||%hu, %d, %i|
|int||4 bytes||-2,147,483,847 to +2,147,483,847||%d, %i, %u|
|unsigned int||4 bytes||0 to 4,294,967,295||%u|
|long||4 bytes||-2,147,483,847 to +2,147,483,847||%d, %i, %u, %ld, %l, %li|
|unsigned long||4 bytes||0 to 4,294,967,295||%lu, %u|
|long long||8 bytes||-9,223,372,036,854,775,807 to +9,223,372,036,854,775,807||%lli|
|unsigned long long||8 bytes||0 to 18,446,744,073,709,551,615||%llu|
|float||4 bytes||1.2E-38 to 3.4E+38||%f|
|double||8 bytes||2.3E-308 to 1.7E+308||%lf|
|long double||10 bytes||3.4E-4932 to 1.1E+4932||%Lf|
Note: Size and range of types may vary on different platform. To check the size of any data type you can simple use
View list of all format specifiers in C.
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