[R-pkg-devel] Warnings from upstream C library in CRAN submission

[Satyaprakash Nayak]

Hi

I had a package 'sundialr' which was archived from CRAN. It is an interface
to some of the solvers in SUNDIALS ODE Solving library. I have fixed the
issue which was related to emails being forwarded from the maintainer's
email address.

The repository code can be found at - https://github.com/sn248/sundialr

I have updated the upstream library and now I am getting the following
warnings from CRAN which are all related to the upstream library. The
package compiles without any other issues and can be used.

Flavor: r-devel-windows-x86_64
Check: whether package can be installed, Result: WARNING
  Found the following significant warnings:
    ./sundials/sundials/sundials_hashmap.h:26:48: warning: conversion from
'long long unsigned int' to 'long unsigned int' changes value from
'14695981039346656037' to '2216829733' [-Woverflow]
    ./sundials/sundials/sundials_hashmap.h:27:48: warning: conversion from
'long long unsigned int' to 'long unsigned int' changes value from
'1099511628211' to '435' [-Woverflow]
    sundials/sundials/sundials_hashmap.h:26:48: warning: conversion from
'long long unsigned int' to 'long unsigned int' changes value from
'14695981039346656037' to '2216829733' [-Woverflow]
    sundials/sundials/sundials_hashmap.h:27:48: warning: conversion from
'long long unsigned int' to 'long unsigned int' changes value from
'1099511628211' to '435' [-Woverflow]
    sundials/sundials/sundials_profiler.c:71:24: warning: function
declaration isn't a prototype [-Wstrict-prototypes]
  See 'd:/RCompile/CRANincoming/R-devel/sundialr.Rcheck/00install.out' for
details.
  Used C++ compiler: 'g++.exe (GCC) 12.3.0'

Flavor: r-devel-linux-x86_64-debian-gcc
Check: whether package can be installed, Result: WARNING
  Found the following significant warnings:
    sundials/sundials/sundials_profiler.c:71:41: warning: a function
declaration without a prototype is deprecated in all versions of C
[-Wstrict-prototypes]
  See '/srv/hornik/tmp/CRAN/sundialr.Rcheck/00install.out' for details.
  Used C++ compiler: 'Debian clang version 17.0.6 (5)'

I am hesitant to change anything in the SUNDIALS library C code because I
don't understand the consequences of changing anything there.

Any help will be kindly appreciated.

Thank you.

	[[alternative HTML version deleted]]