With gcc 8.3.0, gfortran 8.3.0, and ld 2.33.1 from the mingw64 part of
rtools40 on Windows, if I misdefine the typedef FC_LEN_T and use the
-flto flag I get the sort of error messages that you report.
c:\tmp\fortran>cat main.c
#include
#include
#ifdef USE_INT
typedef int FC_LEN_T;
#endif
#ifdef
My recommendation would be to try to minimize the example (package) as
much as possible so that it still has the problem, and then try to
investigate why exactly/where is the type mismatch. This is what helped
me debug similar issues - sometimes it was hard to tell from the Fortran
warnings whe
My file myzhpevx.cpp starts with:
#define USE_FC_LEN_T
#include
#include "Rmath.h"
#ifdef FC_LEN_T
extern "C" {
void zhpevxC(char **jobz, char **range, char **uplo, int *n, Rcomplex *ap,
double *vl, double *vu, int *il, int *iu, double *abstol, int *m,
double *w, Rcomplex *z, int *
Have you tried what is recommended in
https://gcc.gnu.org/onlinedocs/gfortran/Argument-passing-conventions.html
?
For arguments of CHARACTER type, the character length is passed as a
hidden argument at the end of the argument list. For deferred-length
strings, the value is passed by reference, ot
Hello Bill,
Thank you for your insight.
First, my impression, is that the problem comes from how I declare the type of
the function itself (and not its parameters), since the first (and only warning
they seen on the CRAN) message is:
myzhpevx.cpp:13:16: warning: type of �zhpevx_� does not mat
Dear Ivan,
Thank you very much for your response.
I do not have more information than the one I gave in my previous email. (And
on top of that, the computer I was using with Debian SID, a recent version of
gfortran and the last version of R-devel, just broke.)
My problem is that the CRAN team
On Fri, 3 Jul 2020 00:15:27 +
Pierre Lafaye de Micheaux wrote:
>Found the following significant warnings:
>myzhpevx.cpp:13:23: warning: type of _zhpevx__ does not match
> original declaration [-Wlto-type-mismatch]
I managed to reproduce the warning on R-devel r78607 built with
--enable-l
