Wrong return type for std::isinf/isnan(double)

[ZzEeKkAa]

Checklist

• I added a descriptive title.
• I searched through existing issues and couldn't find a solution or duplicate issue.
• I searched on the web (e.g. Google) and didn't find any helpful information.
• I searched the Anaconda documentation and didn't find any helpful information.

Impacted product

• A conda package (built by Anaconda)
• Anaconda Distribution (formerly Anaconda Individual Edition)
• Miniconda
• Anaconda.org

What happened?

#include <cmath>

#include <type_traits>

// this one works as expected
static_assert(
  std::is_same_v < decltype(std::isinf(std::declval < float > ())), bool > );

// this works, but should not
static_assert(
  std::is_same_v < decltype(std::isinf(std::declval < double > ())), int > );

// this one does not work, but should
static_assert(
  std::is_same_v < decltype(std::isinf(std::declval < double > ())), bool > );

cpp reference (https://en.cppreference.com/w/cpp/numeric/math/isinf):

bool isinf( float num );
bool isinf( double num );
bool isinf( long double num );

To create environment:

conda create -n compiler -c defaults --override-channels gxx_linux-64 gcc_linux-64
conda activate compiler
x86_64-conda-linux-gnu-g++ --sysroot=${CONDA_BUILD_SYSROOT} -c test.hpp

Exact error:

test.hpp:15:8: error: static assertion failed
   15 |   std::is_same_v < decltype(std::isinf(std::declval < double > ())), bool > );
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Expected behavior or outcome

Return type of std::isinf(double); must bool, not int

Conda info

active environment : compiler
    active env location : /home/yevhenii/.miniconda3/envs/compiler
            shell level : 1
       user config file : /home/yevhenii/.condarc
 populated config files : /home/yevhenii/.condarc
          conda version : 24.3.0
    conda-build version : 24.3.0
         python version : 3.10.12.final.0
                 solver : libmamba (default)
       virtual packages : __archspec=1=skylake
                          __conda=24.3.0=0
                          __glibc=2.35=0
                          __linux=5.15.123.1=0
                          __unix=0=0
       base environment : /home/yevhenii/.miniconda3  (writable)
      conda av data dir : /home/yevhenii/.miniconda3/etc/conda
  conda av metadata url : None
           channel URLs : https://repo.anaconda.com/pkgs/main/linux-64
                          https://repo.anaconda.com/pkgs/main/noarch
                          https://repo.anaconda.com/pkgs/r/linux-64
                          https://repo.anaconda.com/pkgs/r/noarch
          package cache : /home/yevhenii/.miniconda3/pkgs
                          /home/yevhenii/.conda/pkgs
       envs directories : /home/yevhenii/.miniconda3/envs
                          /home/yevhenii/.conda/envs
               platform : linux-64
             user-agent : conda/24.3.0 requests/2.31.0 CPython/3.10.12 Linux/5.15.123.1-microsoft-standard-WSL2 ubuntu/22.04.4 glibc/2.35 solver/libmamba conda-libmamba-solver/24.1.0 libmambapy/1.5.8
                UID:GID : 1000:1000
             netrc file : /home/yevhenii/.netrc
           offline mode : False

Conda config

==> /home/yevhenii/.condarc <==
auto_activate_base: False
channel_priority: disabled
channels:
  - defaults
report_errors: False
conda-build:
  pkg_format: 2

Conda list

# packages in environment at /home/yevhenii/.miniconda3/envs/compiler:
#
# Name                    Version                   Build  Channel
_libgcc_mutex             0.1                        main    defaults
_openmp_mutex             5.1                       1_gnu    defaults
_sysroot_linux-64_curr_repodata_hack 3                   haa98f57_10    defaults
binutils_impl_linux-64    2.38                 h2a08ee3_1    defaults
binutils_linux-64         2.38.0               hc2dff05_0    defaults
gcc_impl_linux-64         11.2.0               h1234567_1    defaults
gcc_linux-64              11.2.0               h5c386dc_0    defaults
gxx_impl_linux-64         11.2.0               h1234567_1    defaults
gxx_linux-64              11.2.0               hc2dff05_0    defaults
kernel-headers_linux-64   3.10.0              h57e8cba_10    defaults
ld_impl_linux-64          2.38                 h1181459_1    defaults
libgcc-devel_linux-64     11.2.0               h1234567_1    defaults
libgcc-ng                 11.2.0               h1234567_1    defaults
libgomp                   11.2.0               h1234567_1    defaults
libstdcxx-devel_linux-64  11.2.0               h1234567_1    defaults
libstdcxx-ng              11.2.0               h1234567_1    defaults
sysroot_linux-64          2.17                h57e8cba_10    defaults

Additional information

Latest ubuntu 22.04 gcc package works as expected.