go clean -fuzzcache
! exists $GOCACHE/fuzz
go build -x ./empty
! stderr '(compile|gccgo)( |\.exe).*empty.go'

# Fuzzing indicates that one new interesting value was found with an empty
# corpus, and the total size of the cache is now 1.
go clean -fuzzcache
go test -fuzz=FuzzEmpty -fuzztime=10000x .
stdout 'new interesting: 1'
stdout 'total: 1'

are not marked with `//go:linkname` on their definitions.
Similarly, the linker disallows references to such symbols from assembly
code.
For backward compatibility, existing usages of `//go:linkname` found in
a large open-source code corpus remain supported.
Any new references to standard library internal symbols will be disallowed.

A linker command line flag `-checklinkname=0` can be used to disable
this check, for debugging and experimenting purposes.

)

// encVersion1 will be the first line of a file with version 1 encoding.
var encVersion1 = "go test fuzz v1"

// marshalCorpusFile encodes an arbitrary number of arguments into the file format for the
// corpus.
func marshalCorpusFile(vals ...any) []byte {
	if len(vals) == 0 {
		panic("must have at least one value to marshal")
	}
	b := bytes.NewBuffer([]byte(encVersion1 + "\n"))

				return
			}
			if err != nil {
				t.Fatalf("unmarshal unexpected error: %v", err)
			}
			newB := marshalCorpusFile(vals...)
			if newB[len(newB)-1] != '\n' {
				t.Error("didn't write final newline to corpus file")
			}

			want := test.want
			if want == "" {
				want = test.in
			}
			want += "\n"
			got := string(newB)
			if got != want {

	return func(collect func(string)) {
		for i := 0; i <= max; i++ {
			genRepeat(i, g)(collect)
		}
	}
}

func BenchmarkMultiConflicts(b *testing.B) {
	// How fast is indexing if the corpus is all multis?
	const nMultis = 1000
	var pats []*pattern
	for i := 0; i < nMultis; i++ {
		pats = append(pats, mustParsePattern(b, fmt.Sprintf("/a/b/{x}/d%d/", i)))
	}
	b.ResetTimer()

	// TODO(katiehockman): simplify this once we can dedupe crashes (e.g.
	// replace map with calls to panic, and simply count the number of crashes
	// that were added to testdata)
	crashes := make(map[string]bool)
	// No seed corpus initiated
	f.Fuzz(func(t *testing.T, b []byte) {
		crashes[string(b)] = true
		if len(crashes) >= 10 {
			panic("mutator found enough unique mutations")
		}
	})

//	    }
//	    if !bytes.Equal(in, out) {
//	      t.Fatalf("%v: not equal after round trip: %v", in, out)
//	    }
//	  })
//	}
//
// A fuzz test maintains a seed corpus, or a set of inputs which are run by
// default, and can seed input generation. Seed inputs may be registered by
// calling (*F).Add or by storing files in the directory testdata/fuzz/<Name>

			Parent:     entryIn.Path,
			Path:       name,
			Data:       dataOut,
			Generation: entryIn.Generation + 1,
		}
		if args.Warmup {
			// The bytes weren't mutated, so if entryIn was a seed corpus value,
			// then entryOut is too.
			entryOut.IsSeed = entryIn.IsSeed
		}
	}

	return entryOut, resp, false, callErr
}

	    shown.

	-parallel n
	    Allow parallel execution of test functions that call t.Parallel, and
	    fuzz targets that call t.Parallel when running the seed corpus.
	    The value of this flag is the maximum number of tests to run
	    simultaneously.
	    While fuzzing, the value of this flag is the maximum number of

//	    shown.
//
//	-parallel n
//	    Allow parallel execution of test functions that call t.Parallel, and
//	    fuzz targets that call t.Parallel when running the seed corpus.
//	    The value of this flag is the maximum number of tests to run
//	    simultaneously.
//	    While fuzzing, the value of this flag is the maximum number of