[Bug other/102408] New: [OpenACC] omp-oacc-neuter-broadcast.cc: random() not available on all platforms

[pexu--- via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102408

            Bug ID: 102408
           Summary: [OpenACC] omp-oacc-neuter-broadcast.cc: random() not
                    available on all platforms
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: p...@gcc-bugzilla.mail.kapsi.fi
  Target Milestone: ---
              Host: x86_64-linux-gnu
            Target: x86_64-w64-mingw32

Hi.

random() is not available on all platforms (it's XSI), e.g. mingw.

I wonder if the simplest thing would be simply to use rand() or std::rand()
given that the required random value is quite small?

<...>/gcc/omp-oacc-neuter-broadcast.cc: In function 'void
oacc_do_neutering(long long unsigned int, long long unsigned int)':
<...>/gcc/omp-oacc-neuter-broadcast.cc:1786:23: error: 'random' was not
declared in this scope; did you mean 'rand'?
 1786 |    base = bounds_lo + random () % 512;

The problematic commit:
https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=2a3f9f6532bb21d8ab6f16fbe9ee603f6b1405f2