Fix parameter type in C++ version of iseqsig (bug 23171)

The commit

  commit c85e54ac6cef0faed7b7ffc722f52523dec59bf5
  Author: Gabriel F. T. Gomes <gabriel@inconstante.eti.br>
  Date:   Fri Nov 3 10:44:36 2017 -0200

      Provide a C++ version of iseqsig (bug 22377)

mistakenly used double parameters in the long double version of iseqsig,
thus causing spurious conversions to double, as reported on bug 23171.

Tested for powerpc64le and x86_64.

(cherry picked from commit fb0e10b8eb1ebb68c57d4551f7a95118f3c54837)

diff --git a/ChangeLog b/ChangeLog
index 88e9e7ae1edb2733860b5d8f4abbe125e6fdf3d8..6fba508ae14dde036a5e637d4b2afc056824e714 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2018-05-24  Gabriel F. T. Gomes  <gabriel@inconstante.eti.br>
+
+       [BZ #23171]
+       * math/math.h [C++] (iseqsig): Fix parameter type for the long
+       double version.
+
 2018-06-12  Carlos O'Donell  <carlos@redhat.com>
            Andreas Schwab  <schwab@suse.de>
            Dmitry V. Levin  <ldv@altlinux.org>

diff --git a/NEWS b/NEWS
index c7e2cef59b607ad83f20535e601753da047be433..2dab66e85119b3b90a03ed72047ef7beabd0499f 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -75,6 +75,7 @@ The following bugs are resolved with this release:
     build with -Os)
   [23152] gd_GB: Fix typo in "May" (abbreviated)
   [23166] sunrpc: Remove stray exports without --enable-obsolete-rpc
+  [23171] Fix parameter type in C++ version of iseqsig
   [23196] __mempcpy_avx512_no_vzeroupper mishandles large copies
   [23236] Harden function pointers in _IO_str_fields
   [23259] Unsubstituted ${ORIGIN} remains in DT_NEEDED for AT_SECURE

diff --git a/math/math.h b/math/math.h
index 3c515f817fa30136d75baf5c55232c93384f8b2b..0fcbd91366d226fcee36e23bb5c61259b44a63bb 100644 (file)
--- a/math/math.h
+++ b/math/math.h
@@ -1223,7 +1223,7 @@ template<> struct __iseqsig_type<double>
 
 template<> struct __iseqsig_type<long double>
 {
-  static int __call (double __x, double __y) throw ()
+  static int __call (long double __x, long double __y) throw ()
   {
 #  ifndef __NO_LONG_DOUBLE_MATH
     return __iseqsigl (__x, __y);