New module 'logbf'. * lib/math.in.h (logbf): New declaration. * lib/logbf.c: New file. * m4/logbf.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whether logbf is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_LOGBF, HAVE_LOGBF, REPLACE_LOGBF. * modules/math (Makefile.am): Substitute GNULIB_LOGBF, HAVE_LOGBF, REPLACE_LOGBF. * modules/logbf: New file. * tests/test-math-c++.cc: Check the declaration of logbf. * doc/posix-functions/logbf.texi: Mention the new module.

Description:
atan2f() function: angle of a point in the plane.

Files:
lib/atan2f.c
m4/atan2f.m4

Depends-on:
math
extensions
atan2           [test $HAVE_ATAN2F = 0]

configure.ac:
gl_FUNC_ATAN2F
if test $HAVE_ATAN2F = 0; then
  AC_LIBOBJ([atan2f])
fi
gl_MATH_MODULE_INDICATOR([atan2f])

Makefile.am:

Include:
<math.h>

Link:
$(ATAN2F_LIBM)

License:
LGPL

Maintainer:
Bruno Haible