[racket-dev] ffi sizeof bool

Just checked and _Bool is also 1 byte, same as C++. What i don't  
understand yet is to which standard does the current _bool conform? I  
couldn't find any platform with int sized bool.


On Fri, 04 Apr 2014 17:10:30 +0200, Matthew Flatt <mflatt at cs.utah.edu>  
wrote:

> Yes, `_bool` is a problem. I'll add a `_stdbool` that corresponds to
> `bool` from C99's <stdbool.h>, which I imagine must be the same as
> `bool` in C++.
>
> At Fri, 4 Apr 2014 08:56:18 +0200, Tobias Hammer wrote:
>> Hi,
>>
>> i guess this shouldn't happen:
>>
>> $ cat s.cc
>> #include <stdio.h>
>> int main()
>> {
>>      printf("%zu\n", sizeof(bool));
>> }
>> $ g++ s.cc -o s
>> $ ./s
>> 1
>>
>> Welcome to Racket v6.0.0.5.
>> -> (require ffi/unsafe)
>> -> (ctype-sizeof _bool)
>> 4
>>
>> Tested with multiple unix/linux OS, all gcc > 4.3.4
>>
>> Tobias
>> _________________________
>>   Racket Developers list:
>>   http://lists.racket-lang.org/dev


-- 
Tobias Hammer
DLR / Robotics and Mechatronics Center (RMC)
Muenchner Str. 20, D-82234 Wessling
Tel.: 08153/28-1487
Mail: tobias.hammer at dlr.de