Is Size_t an int?

Definition and Characteristics of size_t

size_t is the unsigned integer type used for operations like sizeof, _Alignof (since C11), and offsetof. It is a base unsigned integer memsize-type defined in the standard library of C/C++ languages. The bit width of size_t is not less than 16.

Size and Range of size_t

• Size: 8 bytes
• Range: 0 to 65,535 (for std::uint16_t), -2,147,483,648 to 2,147,483,647 (for std::int32_t), 0 to 4,294,967,295 (for std::uint32_t), -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 (for std::int64_t)

Usage and Printing of size_t

In C and C++, size_t is represented as an 8-byte unsigned integer. To print size_t variables, use the format specifier %zu, where z is a length modifier and u stands for unsigned type.