// Range: -9223372036854775808 through 9223372036854775807.
type int64 int64

// float32 is the set of all IEEE 754 32-bit floating-point numbers.
type float32 float32

// float64 is the set of all IEEE 754 64-bit floating-point numbers.
type float64 float64

// complex64 is the set of all complex numbers with float32 real and
// imaginary parts.
type complex64 complex64

about Go pointers applies not just to pointer types, but also to other
types that include Go pointers.

All Go pointers passed to C must point to pinned Go memory. Go pointers
passed as function arguments to C functions have the memory they point to
implicitly pinned for the duration of the call. Go memory reachable from
these function arguments must be pinned as long as the C code has access

	// 11.6: Single-Precision Floating-Point Computational Instructions
	FADDS	F1, F0, F2				// 53011000
	FSUBS	F1, F0, F2				// 53011008
	FMULS	F1, F0, F2				// 53011010
	FDIVS	F1, F0, F2				// 53011018
	FMINS	F1, F0, F2				// 53011028
	FMAXS	F1, F0, F2				// 53111028
	FSQRTS	F0, F1					// d3000058

	// 11.7: Single-Precision Floating-Point Conversion and Move Instructions
	FCVTWS	F0, X5					// d31200c0

<pre>
var a string

func f() {
	print(a)
}

func hello() {
	a = "hello, world"
	go f()
}
</pre>

<p>
calling <code>hello</code> will print <code>"hello, world"</code>
at some point in the future (perhaps after <code>hello</code> has returned).
</p>

<h3 id="goexit">Goroutine destruction</h3>

<p>
The exit of a goroutine is not guaranteed to be synchronized before
any event in the program.