Update copyright notices with scripts/update-copyrights

[thirdparty/glibc.git] / math / fenv.h

diff --git a/math/fenv.h b/math/fenv.h
index e4dff29a2e069cc66d75735fb99c8a1db0cbc188..1171199a230ebff75be1f657281fa4775d53b1d5 100644 (file)
--- a/math/fenv.h
+++ b/math/fenv.h
@@ -1,28 +1,27 @@
-/* Copyright (C) 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2014 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
 
    The GNU C Library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
+   Lesser General Public License for more details.
 
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   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/>.  */
 
 /*
- * ISO C 9X 7.6: Floating-point environment    <fenv.h>
+ * ISO C99 7.6: Floating-point environment     <fenv.h>
  */
 
 #ifndef _FENV_H
-
 #define _FENV_H        1
+
 #include <features.h>
 
 /* Get the architecture dependend definitions.  The following definitions
@@ -41,7 +40,7 @@
    The following macros are defined iff the implementation supports this
    kind of exception.
    FE_INEXACT          inexact result
-   FE_DIVBYZERO                devision by zero
+   FE_DIVBYZERO                division by zero
    FE_UNDERFLOW                result not representable due to underflow
    FE_OVERFLOW         result not representable due to overflow
    FE_INVALID          invalid operation
@@ -55,59 +54,81 @@
    FE_DOWNWARD         round toward -Inf
    FE_TOWARDZERO       round toward 0
 */
-#include <fenvbits.h>
+#include <bits/fenv.h>
 
 __BEGIN_DECLS
 
 /* Floating-point exception handling.  */
 
 /* Clear the supported exceptions represented by EXCEPTS.  */
-extern void feclearexcept __P ((int __excepts));
+extern int feclearexcept (int __excepts) __THROW;
 
 /* Store implementation-defined representation of the exception flags
    indicated by EXCEPTS in the object pointed to by FLAGP.  */
-extern void fegetexceptflag __P ((fexcept_t *__flagp, int __excepts));
+extern int fegetexceptflag (fexcept_t *__flagp, int __excepts) __THROW;
 
 /* Raise the supported exceptions represented by EXCEPTS.  */
-extern void feraiseexcept __P ((int __excepts));
+extern int feraiseexcept (int __excepts) __THROW;
 
 /* Set complete status for exceptions indicated by EXCEPTS according to
    the representation in the object pointed to by FLAGP.  */
-extern void fesetexceptflag __P ((__const fexcept_t *__flagp, int __excepts));
+extern int fesetexceptflag (const fexcept_t *__flagp, int __excepts) __THROW;
 
 /* Determine which of subset of the exceptions specified by EXCEPTS are
    currently set.  */
-extern int fetestexcept __P ((int __excepts));
+extern int fetestexcept (int __excepts) __THROW;
 
 
 /* Rounding control.  */
 
 /* Get current rounding direction.  */
-extern int fegetround __P ((void));
+extern int fegetround (void) __THROW;
 
 /* Establish the rounding direction represented by ROUND.  */
-extern int fesetround __P ((int __rounding_direction));
+extern int fesetround (int __rounding_direction) __THROW;
 
 
 /* Floating-point environment.  */
 
 /* Store the current floating-point environment in the object pointed
    to by ENVP.  */
-extern void fegetenv __P ((fenv_t *__envp));
+extern int fegetenv (fenv_t *__envp) __THROW;
 
 /* Save the current environment in the object pointed to by ENVP, clear
    exception flags and install a non-stop mode (if available) for all
    exceptions.  */
-extern int feholdexcept __P ((fenv_t *__envp));
+extern int feholdexcept (fenv_t *__envp) __THROW;
 
 /* Establish the floating-point environment represented by the object
    pointed to by ENVP.  */
-extern void fesetenv __P ((__const fenv_t *__envp));
+extern int fesetenv (const fenv_t *__envp) __THROW;
 
 /* Save current exceptions in temporary storage, install environment
    represented by object pointed to by ENVP and raise exceptions
    according to saved exceptions.  */
-extern void feupdateenv __P ((__const fenv_t *__envp));
+extern int feupdateenv (const fenv_t *__envp) __THROW;
+
+
+/* Include optimization.  */
+#ifdef __OPTIMIZE__
+# include <bits/fenvinline.h>
+#endif
+
+#ifdef __USE_GNU
+
+/* Enable individual exceptions.  Will not enable more exceptions than
+   EXCEPTS specifies.  Returns the previous enabled exceptions if all
+   exceptions are successfully set, otherwise returns -1.  */
+extern int feenableexcept (int __excepts) __THROW;
+
+/* Disable individual exceptions.  Will not disable more exceptions than
+   EXCEPTS specifies.  Returns the previous enabled exceptions if all
+   exceptions are successfully disabled, otherwise returns -1.  */
+extern int fedisableexcept (int __excepts) __THROW;
+
+/* Return enabled exceptions.  */
+extern int fegetexcept (void) __THROW;
+#endif
 
 __END_DECLS