How are basic data types stored and mapped in memory in C#?

In C#, basic data types (for example, int, double, bool, char) are value types. They are stored directly in memory, meaning the variable contains the value itself, not a reference to it.

• If a variable is declared on the stack (for example, a local variable of a method), then the value is stored directly on the stack.
• If a basic type is a field of an object, then it is stored inside the object in the heap.

Each basic type has a fixed size in memory, for example, int occupies 4 bytes, double — 8 bytes.

Example:

int a = 10; // In memory, the variable a contains the number 10

Thus, basic types are stored compactly and directly, which ensures high performance when working with them.