<p>
The built-in function <code>delete</code> removes the element with key
<code>k</code> from a <a href="#Map_types">map</a> <code>m</code>. The
type of <code>k</code> must be <a href="#Assignability">assignable</a>
to the key type of <code>m</code>.
</p>

<pre class="grammar">
delete(m, k)  // remove element m[k] from map m
</pre>

<p>

		return err
	}

	// Update the binary with the final build ID.
	// But if OmitDebug is set, don't rewrite the binary, because we set OmitDebug
	// on binaries that we are going to run and then delete.
	// There's no point in doing work on such a binary.
	// Worse, opening the binary for write here makes it
	// essentially impossible to safely fork+exec due to a fundamental

		h := cgo.NewHandle(ch)
		go func() {
			C.cFunc37033(C.uintptr_t(h))
		}()
		if v := <-ch; issue37033 != v {
			t.Fatalf("unexpected receiving value: got %d, want %d", v, issue37033)
		}
		h.Delete()
	}
}

// issue 38649

var issue38649 C.netbsd_gid = 42

// issue 39877

var issue39877 *C.void = nil

// issue 40494
// No runtime test; just make sure it compiles.

		fatal("concurrent map writes")
	}

	hash := t.Hasher(key, uintptr(h.hash0))

	// Set hashWriting after calling t.hasher, since t.hasher may panic,
	// in which case we have not actually done a write (delete).
	h.flags ^= hashWriting

	bucket := hash & bucketMask(h.B)
	if h.growing() {
		growWork(t, h, bucket)
	}
	b := (*bmap)(add(h.buckets, bucket*uintptr(t.BucketSize)))
	bOrig := b
	top := tophash(hash)

		data = append(data, 0)
	}
	s.SetData(data)
	s.SetSize(int64(len(data)))

	// Add reference to go:buildinfo from the rodata section,
	// so that external linking with -Wl,--gc-sections does not
	// delete the build info.
	sr := ldr.CreateSymForUpdate("go:buildinfo.ref", 0)
	sr.SetType(sym.SRODATA)
	sr.SetAlign(int32(ctxt.Arch.PtrSize))
	sr.AddAddr(ctxt.Arch, s.Sym())
}