Table of Contents
What determines data type size?
2 Answers. The maximum width or the maximum amounts of bits a processor can deal with at the same time at a given time is specific to the particular processor you’re using and would be decided by the width of it’s data bus and also the width of all the data lines inside the CPU.
Does the size of data type depends on compiler?
Yes, it depends on both processors (more specifically, ISA, instruction set architecture, e.g., x86 and x86-64) and compilers including programming model. For example, in 16-bit machines, sizeof (int) was 2 bytes. 32-bit machines have 4 bytes for int .
Is the implementation of a data type language dependent?
Well, no. The size of data types are primary platform dependent, if at all, with the possibility of being depending on the “implementation” of a data type.
Which are those data types whose size is compiler dependent?
The size of data types is dependent on the compiler or you can say that the system architecture i.e. 32 bit compiler or 64 bit compiler. The size of data type int is 2 byte in 32 bit architecture or 4 bytes in 64 bit architecture.
What is the size of an integer data type?
Integer Types
Type | Storage size | Value range |
---|---|---|
int | 2 or 4 bytes | -32,768 to 32,767 or -2,147,483,648 to 2,147,483,647 |
unsigned int | 2 or 4 bytes | 0 to 65,535 or 0 to 4,294,967,295 |
short | 2 bytes | -32,768 to 32,767 |
unsigned short | 2 bytes | 0 to 65,535 |
What is the size of a user defined data type in C programming?
and user-defined data types(struct, union, enum) with the help of examples. A data type is a classification of data that tells the compiler or interpreter how the programmer intends to use the data. In another word you can say that it defines the size (BYTE) and the range of a variable.
What is the storage size of object data type?
Objects, References and Wrapper Classes. Minimum object size is 16 bytes for modern 64-bit JDK since the object has 12-byte header, padded to a multiple of 8 bytes. In 32-bit JDK, the overhead is 8 bytes, padded to a multiple of 4 bytes.
What is size of integer in Java programming?
Discussion
Language | Reserved Word | Size |
---|---|---|
C# | int | 32 bits / 4 bytes |
C# | long | 64 bits / 8 bytes |
Java | short | 16 bits / 2 bytes |
Java | int | 32 bits / 4 bytes |
What is the size of data type int in C language?
The size of data types in C is dependent on the compiler or you can say that the system architecture i.e. 32-bit compiler or 64-bit compiler. The size of data type int is 2 byte in 32-bit architecture or 4 bytes in 64-bit architecture.
How many types of data types are there in C?
Data types in C is classified in three broad categories. C language supports four primitive types – char, int, float, void. Primitive types are also known as pre-defined or basic data types. The size and range of a data type is machine dependent and may vary from compiler to compiler.
What is the size of a variable in C++?
The size of a variable completely depends on the data type of variable. If a variable is of data type int then the size of the variable will be 2 or 4 bytes ( Because the size of int is 2 or 4 bytes). To store more than one primitive data types, Structure (user defined data type) was introduced.
What is the memory size of a variable of integer type?
Memory size of a variable of integer data type is dependent on Operating System, For example size of an integer data type in a 32 bit computer is 4 bytes whereas size of integer data type in 16 bit computer is 2 bytes. Keyword int is used to declare variables of type integer.