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From: "matt at mattborland dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/109883] New: Stack Overflow in <cmath> functions with
 <stdfloat> types
Date: Wed, 17 May 2023 06:39:50 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 13.1.0
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X-Bugzilla-Severity: normal
X-Bugzilla-Who: matt at mattborland dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109883

            Bug ID: 109883
           Summary: Stack Overflow in <cmath> functions with <stdfloat>
                    types
           Product: gcc
           Version: 13.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: matt at mattborland dot com
  Target Milestone: ---

The two or more argument functions in <cmath> cause a stack overflow when
called with an <stdfloat> type and any integer type. Running with ASAN yiel=
ds
"AddressSanitizer: nested bug in the same thread". I am able to reproduce t=
his
bug on Fedora 38 with GCC 13.1.1 on x86_64, and macOS 13.3.1 with GCC 13.1.=
0 on
M1.

A minimal reproducer:

#include <stdfloat>
#include <cmath>

int main()
{
    std::pow(0.5F64, 2);
}=