New module 'log2'.

[gnulib.git] / ChangeLog

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@@ -1,5 +1,21 @@
 2012-03-11  Bruno Haible  <bruno@clisp.org>
 
+       New module 'log2'.
+       * lib/math.in.h (log2): New declaration.
+       * lib/log2.c: New file.
+       * m4/log2.m4: New file.
+       * m4/math_h.m4 (gl_MATH_H): Test whether log2 is declared.
+       (gl_MATH_H_DEFAULTS): Initialize GNULIB_LOG2, HAVE_DECL_LOG2,
+       REPLACE_LOG2.
+       * modules/math (Makefile.am): Substitute GNULIB_LOG2, HAVE_DECL_LOG2,
+       REPLACE_LOG2.
+       * modules/log2: New file.
+       * tests/test-math-c++.cc: Check the declaration of log2.
+       * doc/posix-functions/log2.texi: Mention the new module and the IRIX
+       and OSF/1 and Cygwin problems.
+
+2012-03-11  Bruno Haible  <bruno@clisp.org>
+
        exp2* tests: More tests.
        * tests/test-exp2.h (test_function): Test all integral arguments that
        don't need to overflow or denormalized numbers.