1 files changed, 53 insertions, 0 deletions
diff --git a/sysdeps/ieee754/flt-32/w_ilogbf.c b/sysdeps/ieee754/flt-32/w_ilogbf.c
new file mode 100644
index 0000000..4e2a707
--- /dev/null
+++ b/sysdeps/ieee754/flt-32/w_ilogbf.c
@@ -0,0 +1,53 @@
+/* Get integer exponent of a floating-point value.
+   Copyright (C) 1999-2025 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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <limits.h>
+#include <math.h>
+#include <stdbit.h>
+#include <libm-alias-float.h>
+#include <math-type-macros-float.h>
+#include "math_config.h"
+
+#ifdef DEF_AS_LLOGBF
+# define DECL_NAME   __llogb
+# define FUNC_NAME   llogb
+# define RET_TYPE    long int
+# define RET_LOGB0   FP_LLOGB0
+# define RET_LOGBNAN FP_LLOGBNAN
+# define RET_LOGMAX  LONG_MAX
+# define RET_INVALID __math_invalidf_li
+#else
+# define DECL_NAME   __ilogb
+# define FUNC_NAME   ilogb
+# define RET_TYPE    int
+# define RET_LOGB0   FP_ILOGB0
+# define RET_LOGBNAN FP_ILOGBNAN
+# define RET_LOGMAX  INT_MAX
+# define RET_INVALID __math_invalidf_i
+#endif
+#define __IMPL_NAME(x,y) x ## _ ## y
+#define _IMPL_NAME(x,y)  __IMPL_NAME(x,y)
+#define IMPL_NAME        _IMPL_NAME(FUNC_NAME, impl)
+#include <w_ilogbf-impl.h>
+
+RET_TYPE
+M_DECL_FUNC (DECL_NAME) (float x)
+{
+  return IMPL_NAME (x);
+}
+libm_alias_float (DECL_NAME, FUNC_NAME);