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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 0000000..4c9f592
--- /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 050204a..0148297 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. */