<a href="#Deletion_of_map_elements"><code>delete</code></a> built-in function.
</p>
<p>
A new, empty map value is made using the built-in
function <a href="#Making_slices_maps_and_channels"><code>make</code></a>,
which takes the map type and an optional capacity hint as arguments:
</p>

<pre>
make(map[string]int)
make(map[string]int, 100)
</pre>

<p>

pkg syscall (netbsd-386), const MAP_ALIGNMENT_SHIFT ideal-int
pkg syscall (netbsd-386), const MAP_ANON = 4096
pkg syscall (netbsd-386), const MAP_ANON ideal-int
pkg syscall (netbsd-386), const MAP_FILE = 0
pkg syscall (netbsd-386), const MAP_FILE ideal-int
pkg syscall (netbsd-386), const MAP_FIXED = 16
pkg syscall (netbsd-386), const MAP_FIXED ideal-int
pkg syscall (netbsd-386), const MAP_HASSEMAPHORE = 512

	"runtime"
	"strings"
	"sync"
	"testing"
	"unsafe"
)

// Pass a func value from nestedCall to goCallback using an integer token.
var callbackMutex sync.Mutex
var callbackToken int
var callbackFuncs = make(map[int]func())

// nestedCall calls into C, back into Go, and finally to f.
func nestedCall(f func()) {
	// callback(x) calls goCallback(x)
	callbackMutex.Lock()
	callbackToken++
	i := callbackToken