BatPrintf does not support %h conversion

[rixed]

One has to resort to Legacy.Printf.sprintf for that, which is not convenient.
Also, this crash at runtime!

[UnixJunkie]

If this is supported by the stdlib, how can batteries not support it?
I have never since this specifier though.

[UnixJunkie]

h or H: convert a floating-point argument to hexadecimal notation, in the style 0xh.hhhh p+-dd (hexadecimal mantissa, exponent in decimal and denotes a power of 2).

[UnixJunkie]

utop # Printf.printf "%h\n" 1.0;;
0x1p+0
utop # #require "batteries";;
utop # BatPrintf.printf "%h\n" 1.0;;
Exception:
Invalid_argument
 "printf: bad conversion %h, at char number 1 in format string ``%h\n''".

[UnixJunkie]

I discover that batteries has a reimplementation of the Printf module.
Since it uses BatInnerIO, I suspect it is slower than Stdlib.Printf.
And I suspect that's why I never used this batteries module...