------- Comment #5 from Lulin dot Song at gmail dot com 2010-08-31 18:06
-------
(In reply to comment #2)
> Try compiling with -fdump-tree-original and inspecting the
> expected argument lists. You really don't want to use a
> function here. Use a subroutine.
>
> include <stdio.h>
>
> void requestdouble_(double*, double*, char *, int *len);
>
> int main()
> {
> char str[20];
> int len;
> double lat=10.0;
> double lon=20.0;
> requestdouble_(&lat, &lon, str, &len);
> return 0;
> }
> subroutine requestdouble(rlat,rlng,str)
> IMPLICIT NONE
> REAL(KIND=8), INTENT(IN) :: rlat ! - latitude -
> REAL(KIND=8), INTENT(IN) :: rlng ! - longitude -
> CHARACTER(LEN=*) :: str
> PRINT *, ' requestdouble rlat=', rlat,' rlng=', rlng
> str='1111111111111111'
> RETURN
> END subroutine requestdouble
>
Thanks. I do know how to work around it with subroutine which I already did in
my program. But it doesn't explain why 4.1.2 version allows return character
string from function. Our program works well until the gcc upgrade.
Is this new standard?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45466
