pmt: initial 3.0.2 update

include/libgnulib/integer_length.h

@@ -0,0 +1,47 @@
+/* integer_length - find most significant bit in an unsigned integer.
+   Copyright (C) 2011-2024 Free Software Foundation, Inc.
+
+   This file 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.
+
+   This file 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2011.  */
+
+#ifndef _INTEGER_LENGTH_H
+#define _INTEGER_LENGTH_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* These functions return the minimum number of bits required to represent
+   the given unsigned integer.
+   For non-zero values, this is the position of the most significant bit
+   that is set, plus one.  For zero, it is 0.  */
+
+/* Returns the integer length of x.
+   The result is >= 0, <= sizeof (unsigned int) * CHAR_BIT.  */
+extern int integer_length (unsigned int x);
+
+/* Returns the integer length of x.
+   The result is >= 0, <= sizeof (unsigned long) * CHAR_BIT.  */
+extern int integer_length_l (unsigned long x);
+
+/* Returns the integer length of x.
+   The result is >= 0, <= sizeof (unsigned long long) * CHAR_BIT.  */
+extern int integer_length_ll (unsigned long long x);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _INTEGER_LENGTH_H */