type MigrateNullableColumn struct {
		ID    uint
		Bonus float64 `gorm:"not null"`
		Stock float64
	}

	DB.Migrator().DropTable(&MigrateNullableColumn{})

	DB.AutoMigrate(&MigrateNullableColumn{})

	type MigrateNullableColumn2 struct {
		ID    uint
		Bonus float64
		Stock float64 `gorm:"not null"`
	}

        probably silently use `float32` in TensorFlow2, and a warning will be
        issued that starts with Layer "layer-name" is casting an input tensor
        from dtype float64 to the layer's dtype of float32. To fix, either set
        the default dtype to float64 with
        `tf.keras.backend.set_floatx('float64')`, or pass `dtype='float64'` to

pkg syscall (windows-amd64), func FullPath(string) (string, error)

# CL 98150043 testing: add Coverage function, Russ Cox <******@****.***>
pkg testing, func Coverage() float64

# CL 148770043 cmd/go, testing: add TestMain support, Russ Cox <******@****.***>
pkg testing, func MainStart(func(string, string) (bool, error), []InternalTest, []InternalBenchmark, []InternalExample) *M

			scanIntoMap(mapValue, values, columns)
			*dest = append(*dest, mapValue)
		}
	case *int, *int8, *int16, *int32, *int64,
		*uint, *uint8, *uint16, *uint32, *uint64, *uintptr,
		*float32, *float64,
		*bool, *string, *time.Time,
		*sql.NullInt32, *sql.NullInt64, *sql.NullFloat64,
		*sql.NullBool, *sql.NullString, *sql.NullTime:
		for initialized || rows.Next() {
			initialized = false
			db.RowsAffected++

		return false, nil
	}

	// How much will be left after adding the file.
	available -= uint64(size)

	// wantLeft is how much space there at least must be left.
	wantLeft := uint64(float64(total) * (1.0 - diskFillFraction))
	return available > wantLeft, nil

		ID      int
		Name    string     `gorm:"default:NULL"`
		Flag    bool       `gorm:"default:NULL"`
		Number1 int64      `gorm:"default:NULL"`
		Number2 uint64     `gorm:"default:NULL"`
		Number3 float64    `gorm:"default:NULL"`
		Now     *time.Time `gorm:"default:NULL"`
		Item1Id string
		Item1   *QueryResetItem `gorm:"references:ID"`
		Item2Id string
		Item2   *QueryResetItem `gorm:"references:ID"`
	}

			err = z.Init(ctx) // Initializes all pools.
		})
		if err != nil {
			if !configRetriableErrors(err) {
				logger.Fatal(err, "Unable to initialize backend")
			}
			retry := time.Duration(r.Float64() * float64(5*time.Second))
			storageLogIf(ctx, fmt.Errorf("Unable to initialize backend: %w, retrying in %s", err, retry))
			time.Sleep(retry)
			attempt++
			continue
		}
		break
	}

		}
		if err == nil {
			break
		}
		replLogOnceIf(context.Background(), fmt.Errorf("unable to initialize site replication subsystem: (%w)", err), "site-relication-init")

		duration := max(time.Duration(r.Float64()*float64(time.Minute)),
			// Make sure to sleep at least a second to avoid high CPU ticks.
			time.Second)
		time.Sleep(duration)
	}
	c.RLock()
	defer c.RUnlock()
	if c.enabled {

Example

As a simple example, consider a package that uses cgo to call C.sin.
The following code will be generated by cgo:

	// compiled by gc

	//go:cgo_ldflag "-lm"

	type _Ctype_double float64

	//go:cgo_import_static _cgo_gcc_Cfunc_sin
	//go:linkname __cgo_gcc_Cfunc_sin _cgo_gcc_Cfunc_sin
	var __cgo_gcc_Cfunc_sin byte
	var _cgo_gcc_Cfunc_sin = unsafe.Pointer(&__cgo_gcc_Cfunc_sin)

	// Run the replication resync in a loop
	for {
		if err := p.loadResync(ctx, buckets, objAPI); err == nil {
			<-ctx.Done()
			return
		}
		duration := max(time.Duration(r.Float64()*float64(time.Minute)),
			// Make sure to sleep at least a second to avoid high CPU ticks.
			time.Second)
		time.Sleep(duration)
	}
}

// Loads bucket replication resync statuses into memory.