go/src/strconv/fp_test.go

func pow2(i int) float64 { … }

// Wrapper around strconv.ParseFloat(x, 64).  Handles dddddp+ddd (binary exponent)
// itself, passes the rest on to strconv.ParseFloat.
func myatof64(s string) (f float64, ok bool) { … }

// Wrapper around strconv.ParseFloat(x, 32).  Handles dddddp+ddd (binary exponent)
// itself, passes the rest on to strconv.ParseFloat.
func myatof32(s string) (f float32, ok bool) { … }

func TestFp(t *testing.T) { … }