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-rw-r--r--bits/fp-logb.h28
-rw-r--r--bits/mathdef.h9
2 files changed, 28 insertions, 9 deletions
diff --git a/bits/fp-logb.h b/bits/fp-logb.h
new file mode 100644
index 0000000000..4c9f592f99
--- /dev/null
+++ b/bits/fp-logb.h
@@ -0,0 +1,28 @@
+/* Define __FP_LOGB0_IS_MIN and __FP_LOGBNAN_IS_MIN.
+   Copyright (C) 2016 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 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
+   Lesser General Public License for more details.
+
+   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/>.  */
+
+#ifndef _MATH_H
+# error "Never use <bits/fp-logb.h> directly; include <math.h> instead."
+#endif
+
+/* __FP_LOGB0_IS_MIN is defined to 1 if FP_ILOGB0 is INT_MIN, and 0 if
+   it is -INT_MAX.  __FP_LOGBNAN_IS_MIN is defined to 1 if FP_ILOGBNAN
+   is INT_MIN, and 0 if it is INT_MAX.  */
+
+#define __FP_LOGB0_IS_MIN	0
+#define __FP_LOGBNAN_IS_MIN	0
diff --git a/bits/mathdef.h b/bits/mathdef.h
index 050204ab66..014829790a 100644
--- a/bits/mathdef.h
+++ b/bits/mathdef.h
@@ -19,15 +19,6 @@
 # error "Never use <bits/mathdef.h> directly; include <math.h> instead"
 #endif
 
-#if defined  __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
-# define _MATH_H_MATHDEF	1
-
-/* The values returned by `ilogb' for 0 and NaN respectively.  */
-# define FP_ILOGB0	(-2147483647)
-# define FP_ILOGBNAN	2147483647
-
-#endif	/* ISO C99 */
-
 #ifndef __NO_LONG_DOUBLE_MATH
 /* Signal that we do not really have a `long double'.  The disables the
    declaration of all the `long double' function variants.  */