printf: Exponent not parsed (printf "%f" 1e10) #7474
Description
Neither decimal nor hex exponents are parsed:
$ printf "%f %f\n" 1e10 0x1p2
10000000000.000000 4.000000
$ cargo run printf "%f %f\n" 1e10 0x1p2
printf: '1e10': value not completely converted
printf: '0x1p2': value not completely converted
1.000000 1.000000
Similarly to #7473, seq does parse those correctly (so again, unifying parsing seems like a good idea, see #7458 for the first step).
Note that this only applies to float formats, integer formats should not parse exponents:
$ printf "%d %d\n" 1e10 0x1p2
printf: 1e10: invalid number
printf: 0x1p2: invalid hex number
1 1