Charles Hixson:
Does anyone know:
If an extern(c) function is defined as returning a bool, does D
handle the conversion automatically into true and false?
Should it be defined as returning an int? On a 64 bit
machine? Does this depend on the compiler used to compile the
library? int32_t? int_64_t?
Is this portable or non-portable?
A D bool is a C99 uint8_t that has values just 0 or 1.
If your uint8_t contains a value x > 1, in many cases this works,
but some D code relying on the standard values of a D boolean
breaks (like when you sum bool values in D, to count the true
ones).
D doesn't handle those conversions beside the narrowing or
extension of bit-width lengths.
Bye,
bearophile
