On Tue, Sep 22, 2009 at 12:54 PM, Joel Sherrill <joel.sherr...@oarcorp.com> wrote: > Florian Weimer wrote: >> >> * Joel Sherrill: >> >> >>> >>> What is the proper type to use in an Ada binding >>> for a C method that returns a C99 bool? >>> >> >> Whatever the answer is, it should be used to define Interfaces.C.Bool. >> (I don't know what GCC's options for representing _Bool are, sorry.) >> >> > > It appears to be unsigned char or at least sizeof(bool)=1 > on the architectures I tried this test program on. > > #include <stdbool.h> > > bool x; > int s = sizeof(bool); > > Unfortunately bool is defined to _Bool and that must be > something gcc recognizes. I don't see it in .h files.
C99 Boolean type is _Bool. C99 requires people to include <stdbool> if they want to write bool instead of _Bool. > > --joel >
