Question

Enlist different built-in data types in C++ with their size.

Answer 1

Built-in Data Types in C++ and Their Sizes:

Data Type	Size (in Bytes)
char/signed char/unsigned char	1
int/signed int/unsigned int	2
short int/signed short int/unsigned short int	2
long int/unsigned long int	4
float	4
double	8
long double	10
void	0 (No value/size)

• The Modifiers: The text explains that signed, unsigned, long, and short are modifiers applied to the basic types (int and char) to change their range or size.
• The “void” type: While listed as a built-in type in Figure 3.1, it is used for functions that do not return a value and therefore does not have a size in bytes listed in the table.
• Compiler Context: The table shows int as 2 bytes. This is typical for older 16-bit systems (like Turbo C++). In most modern 32-bit or 64-bit systems, a standard int is usually 4 bytes.