Go Integers: Difference between revisions

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Line 23: Line 23:
A single byte can be converted to string as follows:
A single byte can be converted to string as follows:
<pre>
<pre>
var b byte = 90
var b byte = 65
str := string(b)
str := string(b) // str is "A"
</pre>
</pre>



Revision as of 02:38, 4 April 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 between bytes and strings

A single byte can be converted to string as follows:

var b byte = 65
str := string(b) // str is "A"

The following expression converts a string to a slice of bytes:

bytes := []byte("test")

The following expression converts a slice of bytes to string:

str := string(bytes)

Also see:

Conversion between Types