How to call 'printf' using libffi?

[Andrew Haley]

On 3/20/21 11:56 PM, Anthony Green wrote:
> It's worth noting that JNA, one of libffi's big users, does the
> float-to-double promotion at their layer.
> https://github.com/java-native-access/jna/issues/463
> 
> Ruby's FFI does the same thing:
> https://github.com/ffi/ffi/blob/6d14c0a9107c0d5febb3bf92a60d2581e768fa2f/ext/ffi_c/Variadic.c
> 
> This is making me feel more comfortable about returning an error on float
> varargs.  (I've change my mind about aborting)
That souns right. libffi is the lowest-level layer, after all.

-- 
Andrew Haley  (he/him)
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
https://keybase.io/andrewhaley
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