Go Integers: Difference between revisions
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=Internal= | =Internal= | ||
* [[Go Concepts - The Type System#Built-in_Types| | * [[Go Concepts - The Type System#Built-in_Types|Built-in Types]] | ||
=Overview= | =Overview= | ||
Revision as of 21:41, 30 March 2016
Internal
Overview
Integers are designated by the following pre-declared type identifiers:
- Unsigned integers: uint8 (or byte), uint16, uint32 (or rune), uint64.
- Signed integers: int8, int16, int32, int64.
- Machine-dependent integers: uint, int and uintptr.
When a regular integer is needed in the program, int should be the default.
byte
byte is unsigned int represented on a byte (uint8).
Indexing operator [] applied to strings return bytes.
Conversion of a byte to string
The following expression converts a string to a slice of bytes:
bytes := []byte("test")
Conversion of bytes to string:
str := string([]byte{'t', 'e', 's', 't'})