[R-pkg-devel] Cran submission - warning with windows (cpp build library gmp)

[Kevin Ushey]

The 'long long' type does not exist in the C++98 standard, so you need to
explicitly request C++11 or C++14 (the former which is now fairly broadly
supported across compilers on different systems).

For more detail, see in the R extensions manual:

https://cran.r-project.org/doc/manuals/r-release/R-exts.html#Using-C_002b_002b11-code

Best,
Kevin

On Fri, Feb 22, 2019 at 5:08 AM Antoine Lucas <antoinelucas using gmail.com>
wrote:

> Dear all
>
> I would like to update gmp package - this package link to a c++ library
> gmp.
>
> But windows c++ compilation warns at:
>  d:/Compiler/gcc-4.9.3/local330/include/gmp-x64.h:140:23: warning: ISO
> C++ 1998 does not support 'long long' [-Wlong-long]
>
> I have not this warning on linux.
> On my computer I build latest version on gmplib, and header is a
> little different and should not define a long long. I wonder if the
> warning could be fixed by an update of external c++ library gmp.
>
> How could I fix my package in order to pass the cran submission ?
>
> Regards,
>
> Antoine Lucas
>
> gmp.h at line 140:
> #ifdef __GMP_SHORT_LIMB
> typedef unsigned int            mp_limb_t;
> typedef int                     mp_limb_signed_t;
> #else
> #ifdef _LONG_LONG_LIMB
> typedef unsigned long long int  mp_limb_t;
> typedef long long int           mp_limb_signed_t;
> #else
> typedef unsigned long int       mp_limb_t;
> typedef long int                mp_limb_signed_t;
> #endif
> #endif
>
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