golang int default number

Golang is a programming language developed by Google. Compared with other programming languages, one of the significant differences is the way it handles integer types. In Golang, the integer type occupies a large part of the programming language, but many novice programmers will have a question: What is the default int type of Golang?

In Golang, the int type does not have a fixed number of digits. Its number of digits depends on the platform used when compiling. On 32-bit platforms, the int type typically occupies 32 bits, while on 64-bit platforms it occupies 64 bits. This feature is because the size of integer types in Golang is determined by the memory structure of the underlying computer hardware.

In addition to int, Golang also provides integer types of different sizes, with different digits and sign properties. The most common of these are int8, int16, int32 and int64 types. These types occupy 8, 16, 32 and 64 bits respectively and are signed. In addition to these types, Golang also provides corresponding unsigned integer types, such as uint8, uint16, uint32 and uint64, etc. These types also occupy 8, 16, 32 and 64 bits respectively.

Since the size of the int type depends on the platform used, when writing cross-platform programs in Golang, in order to ensure that the integer type has the same semantics on different platforms, it is recommended to use int8, int16, int32 and int64 and other integer types. For different application scenarios, programmers can also customize integer types as needed, such as using the type keyword to customize a new integer type. In addition, Golang also provides some functions and operators that operate on integer types, such as bit operators, logical operators, and arithmetic operators.

In short, although the int type in Golang does not have a fixed number of digits by default, programmers can use integer types of different sizes to meet different needs and make use of the integer type operation functions and operators provided in Golang to implement various algorithms and applications. For cross-platform applications, it is recommended to use integer types such as int8, int16, int32, and int64 to ensure that the program has the same semantics on different platforms.

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