From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id 1F69B3858D33; Fri, 17 Nov 2023 17:17:13 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1F69B3858D33
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1700241433;
	bh=8C4i/nfg0OPql3G5Kpt2ybwyRnzZ2P6/3C6vW88tH1I=;
	h=From:To:Subject:Date:From;
	b=H9k/r+TZO96Yw3UC68yTrRBOh0Vr2TZ9L2sz4AxRc0DcK3TnPktxBHGdhaJCq/Ucd
	 eFiWSxUtyWQS+7PYbxj6qDrW+JBtvNMkbaJ++o5yrdbTNLb2h3OIx54I4EQCIDPdX5
	 BxS/ublNnxPW3MVYwiMfTve6cOvE1bF6MK+iRFwY=
From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/112593] New: FAIL:
 26_numerics/headers/cmath/equivalent_functions.cc on Solaris 11.3
Date: Fri, 17 Nov 2023 17:17:12 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: libstdc++
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: testsuite-fail
X-Bugzilla-Severity: normal
X-Bugzilla-Who: redi at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status
 keywords bug_severity priority component assigned_to reporter
 target_milestone cf_gcctarget
Message-ID: <bug-112593-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112593

            Bug ID: 112593
           Summary: FAIL:
                    26_numerics/headers/cmath/equivalent_functions.cc on
                    Solaris 11.3
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Keywords: testsuite-fail
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: redi at gcc dot gnu.org
  Target Milestone: ---
            Target: sparc-sun-solaris2.11

/export/home/jwakely/src/gcc/libstdc++-v3/testsuite/26_numerics/headers/cma=
th/equivalent_functions.cc:197:
void test_long_double_overload(): Assertion 'std::cosh(x) =3D=3D std::coshl=
(x)'
failed.


std::cosh is provided by
/export/home/jwakely/build/gcc/include-fixed/iso/math_iso.h which has:

namespace std {
...
extern long double __coshl(long double);
...
inline long double cosh(long double __X) { return __coshl(__X); }


std::coshl is provided by libstdc++'s <cmath> (since r14-5341-g0b880466e910=
b4)
which does:

using std::coshl;

That finds ::coshl from /export/home/jwakely/build/gcc/include-fixed/math.h:

extern long double coshl (long double);


That means that Solaris provides both ::coshl and also std::__coshl, and th=
ey
return different values for cosh(1.0):

std::cosh(x)    =3D 1.5430806348152437784779056207570615
std::__coshl(x) =3D 1.5430806348152437784779056207570615
std::coshl(x)   =3D 1.5430806348152437784779056207570617

The first two match, as expected because std::cosh just calls std::__coshl.

I don't know why Solaris provides two different implementations of coshl.=