</p>

<p>
In this program:
</p>

<pre>
var a, b int

func f() {
	a = 1
	b = 2
}

func g() {
	print(b)
	print(a)
}

func main() {
	go f()
	g()
}
</pre>

<p>
it can happen that <code>g</code> prints <code>2</code> and then <code>0</code>.
</p>

<p>
This fact invalidates a few common idioms.
</p>

<p>

  module requirements from configuration files for other vendoring tools
  (such as <code>Gopkg.lock</code>).
</p>

<!-- CL 495447 -->
<p>
<code>go</code> <code>test</code> <code>-cover</code> now prints coverage summaries for covered
packages that do not have their own test files. Prior to Go 1.22 a
<code>go</code> <code>test</code> <code>-cover</code> run for such a package would report
</p>

<p>

</p>

<pre class="grammar">
Function   Behavior

print      prints all arguments; formatting of arguments is implementation-specific
println    like print but prints spaces between arguments and a newline at the end
</pre>

<p>
Implementation restriction: <code>print</code> and <code>println</code> need not
accept arbitrary argument types, but printing of boolean, numeric, and string

(Exception: the <code>g</code> register renaming on ARM.)
</p>

<p>
In Go object files and binaries, the full name of a symbol is the
package path followed by a period and the symbol name:
<code>fmt.Printf</code> or <code>math/rand.Int</code>.
Because the assembler's parser treats period and slash as punctuation,
those strings cannot be used directly as identifier names.
Instead, the assembler allows the middle dot character U+00B7

iteration's variable at that moment.
</p>

<pre>
var prints []func()
for i := 0; i < 5; i++ {
	prints = append(prints, func() { println(i) })
	i++
}
for _, p := range prints {
	p()
}
</pre>

<p>
prints
</p>

<pre>
1
3
5
</pre>

<p>