var(--bs-card-spacer-y) var(--bs-card-spacer-x);\n  color: var(--bs-card-color);\n}\n\n.card-title {\n  margin-bottom: var(--bs-card-title-spacer-y);\n  color: var(--bs-card-title-color);\n}\n\n.card-subtitle {\n  margin-top: calc(-0.5 * var(--bs-card-title-spacer-y));\n  margin-bottom: 0;\n  color: var(--bs-card-subtitle-color);\n}\n\n.card-text:last-child {\n  margin-bottom: 0;\n}\n\n.card-link + .card-link {\n  margin-left: var(--bs-card-spacer-x);\n}\n\n.card-header {\n  padding: var(--bs-card-cap-padding-y)...

25rem - 1px);border-bottom-left-radius:calc(.25rem - 1px)}.card>.card-header+.list-group,.card>.list-group+.card-footer{border-top:0}.card-body{-ms-flex:1 1 auto;flex:1 1 auto;min-height:1px;padding:1.25rem}.card-title{margin-bottom:.75rem}.card-subtitle{margin-top:-.375rem;margin-bottom:0}.card-text:last-child{margin-bottom:0}.card-link:hover{text-decoration:none}.card-link+.card-link{margin-left:1.25rem}.card-header{padding:.75rem 1.25rem;margin-bottom:0;background-color:rgba(0,0,0,.03);border-bottom:1px...

were all talking at once, while all the rest were quite silent,
and looked very uncomfortable.

  The moment Alice appeared, she was appealed to by all three to
settle the question, and they repeated their arguments to her,
though, as they all spoke at once, she found it very hard indeed
to make out exactly what they said.

  The executioner's argument was, that you couldn't cut off a

were all talking at once, while all the rest were quite silent,
and looked very uncomfortable.

  The moment Alice appeared, she was appealed to by all three to
settle the question, and they repeated their arguments to her,
though, as they all spoke at once, she found it very hard indeed
to make out exactly what they said.

  The executioner's argument was, that you couldn't cut off a

> .card-header + .list-group,\n.card > .list-group + .card-footer {\n  border-top: 0;\n}\n\n.card-body {\n  -ms-flex: 1 1 auto;\n  flex: 1 1 auto;\n  min-height: 1px;\n  padding: 1.25rem;\n}\n\n.card-title {\n  margin-bottom: 0.75rem;\n}\n\n.card-subtitle {\n  margin-top: -0.375rem;\n  margin-bottom: 0;\n}\n\n.card-text:last-child {\n  margin-bottom: 0;\n}\n\n.card-link:hover {\n  text-decoration: none;\n}\n\n.card-link + .card-link {\n  margin-left: 1.25rem;\n}\n\n.card-header {\n  padding: 0.75rem...

PlusPlusUltra, Poedator, Prasad Nikam, Rahul-Kamat, Rajeshwar Reddy T,
redwrasse, Rickard, Robert Szczepanski, Rohan Lekhwani, Sam Holt, Sami Kama,
Samuel Holt, Sandeep Giri, sboshin, Sean Settle, settle, Sharada Shiddibhavi,
Shawn Presser, ShengYang1, Shi,Guangyong, Shuxiang Gao, Sicong Li, Sidong-Wei,
Srihari Humbarwadi, Srinivasan Narayanamoorthy, Steenu Johnson, Steven Clarkson,

<!--{
	"Title": "The Go Programming Language Specification",
	"Subtitle": "Language version go1.27 (April 1, 2026)",
	"Path": "/ref/spec"
}-->

<h2 id="Introduction">Introduction</h2>

<p>
This is the reference manual for the Go programming language.
For more information and other documents, see <a href="/">go.dev</a>.
</p>

<p>
Go is a general-purpose language designed with systems programming

> .card-header + .list-group,\n.card > .list-group + .card-footer {\n  border-top: 0;\n}\n\n.card-body {\n  -ms-flex: 1 1 auto;\n  flex: 1 1 auto;\n  min-height: 1px;\n  padding: 1.25rem;\n}\n\n.card-title {\n  margin-bottom: 0.75rem;\n}\n\n.card-subtitle {\n  margin-top: -0.375rem;\n  margin-bottom: 0;\n}\n\n.card-text:last-child {\n  margin-bottom: 0;\n}\n\n.card-link:hover {\n  text-decoration: none;\n}\n\n.card-link + .card-link {\n  margin-left: 1.25rem;\n}\n\n.card-header {\n  padding: 0.75rem...

lc(.25rem - 0);border-bottom-left-radius:calc(.25rem - 0)}.card>.card-header+.list-group,.card>.list-group+.card-footer{border-top:0}.card-body{-ms-flex:1 1 auto;flex:1 1 auto;min-height:1px;padding:1.25rem}.card-title{margin-bottom:.75rem}.card-subtitle{margin-top:-.375rem;margin-bottom:0}.card-text:last-child{margin-bottom:0}.card-link:hover{text-decoration:none}.card-link+.card-link{margin-left:1.25rem}.card-header{padding:.75rem 1.25rem;margin-bottom:0;background-color:rgba(0,0,0,.03);border-bottom:0...