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Does size of data types depend 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 .
Why do computers use different data types?
Different types of data are represented in different ways inside a computer and need varying amounts of memory to store them. They also have different operations that can be performed upon them. All values that belong to the same data type will be represented in the same way.
Which are those data types whose size is compiler dependent discuss their sizes on all types of compilers?
The size of short integer (signed or unsigned) is often 2 bytes long for most of the compilers. The size of long integer (signed or unsigned long) depends upon compiler….Data Types and There Sizes in C.
| Type | Size (bytes) | Range |
|---|---|---|
| unsigned int | 2 | 0 to 65535 |
| short int or signed short int | 2 | -32,768 to +32767 |
| unsigned short int | 2 | 0 to 65535 |
What is the size of float in a 32-bit compiler?
Data Types and Sizes
| Type Name | 32–bit Size | 64–bit Size |
|---|---|---|
| float | 4 bytes | 4 bytes |
| double | 8 bytes | 8 bytes |
| long double | 16 bytes | 16 bytes |
What is the size of in a 32-bit C compiler?
Table 2-2 D Integer Data Types
| Type Name | 32–bit Size | 64–bit Size |
|---|---|---|
| char | 1 byte | 1 byte |
| short | 2 bytes | 2 bytes |
| int | 4 bytes | 4 bytes |
| long | 4 bytes | 8 bytes |
What is the size of float in a 32 bit compiler * 1 point?
What is the size of float in a 32-bit compiler? Explanation: None.
Why does size of any data type depend on the architecture?
In the case of languages with architecture-dependent data types, such as C, the variation is a result of the word size (register size) of the machine. For example, in C/C++, the size of a long integer is 4 bytes (32-bits) on a 32-bit machine, and 8 bytes (64-bit) on a 64-bit machine.
Is the size of an int the same in 32 bit and 16 bit?
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. It has been considered int was the native size of a processor, i.e., the size of register.
How does the size of an int depend on the compiler?
The simple and correct answer is that it depends on the compiler. It doesn’t mean architecture is irrelevant but the compiler deals with that, not your application. You could say more accurately it depends on the (target) architecture of the compiler for example if its 32 bits or 64 bits.
What does the bit size of a processor tell you?
The bit size of your processor tells you what the natural word length the CPU is capable of handling in one cycle. A 32bit machine needs 2 cycles to handle a 64bit double if it is aligned properly in memory.