Improve the accuracy of tgamma (BZ #26983)

[thirdparty/glibc.git] / math / feupdateenv.c

diff --git a/math/feupdateenv.c b/math/feupdateenv.c
index 13d819e4797908532da97d9e03572d9d43b55a13..4218f9404f2654102a6379e02b1e39ab4f2f4889 100644 (file)
--- a/math/feupdateenv.c
+++ b/math/feupdateenv.c
@@ -1,5 +1,5 @@
 /* Install given floating-point environment and raise exceptions.
-   Copyright (C) 1997-2014 Free Software Foundation, Inc.
+   Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
@@ -15,7 +15,7 @@
 
    You should have received a copy of the GNU Lesser General Public
    License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
+   <https://www.gnu.org/licenses/>.  */
 
 #include <fenv.h>
 #include <shlib-compat.h>
@@ -23,6 +23,10 @@
 int
 __feupdateenv (const fenv_t *envp)
 {
+#if defined FE_NOMASK_ENV && FE_ALL_EXCEPT != 0
+  if (envp == FE_NOMASK_ENV)
+    return 1;
+#endif
   /* Nothing to do.  */
   return 0;
 }
@@ -30,6 +34,7 @@ __feupdateenv (const fenv_t *envp)
 strong_alias (__feupdateenv, __old_feupdateenv)
 compat_symbol (libm, __old_feupdateenv, feupdateenv, GLIBC_2_1);
 #endif
+libm_hidden_def (__feupdateenv)
 libm_hidden_ver (__feupdateenv, feupdateenv)
 versioned_symbol (libm, __feupdateenv, feupdateenv, GLIBC_2_2);