[PATCH v5] Replace {u}int_fast{16|32} with {u}int32_t

[Paul Eggert]

On 4/13/22 16:59, Noah Goldstein via Libc-alpha wrote:
> -  return h & 0xffffffff;
> +  return h;

Please omit this change, as the "& 0xffffffff" is needed on 
(admittedly-hypothetical) hosts where unsigned int is wider than 32 
bits, which POSIX allows. Omitting this change shouldn't affect the 
generated machine code on typical platforms.

> -	      uint_fast16_t type;
> +	      uint16_t type;

Since 'type' is compared to qtypes[i] which is 'short int', I suggest 
using 'short int' here instead.

Otherwise, looks good; thanks.

A bigger cleanup would replace a lot of the 'uint32_t' stuff with 
'unsigned', as a good deal of the code seems to be written under the 
mistaken assumption that int can be only 16 bits, but that's low priority.