Description:
log2() function: base 2 logarithm.

Files:
lib/log2.c
m4/log2.m4
m4/mathfunc.m4

Depends-on:
math
extensions
isnand          [test $HAVE_LOG2 = 0 || test $REPLACE_LOG2 = 1]
frexp           [test $HAVE_LOG2 = 0 || test $REPLACE_LOG2 = 1]
log             [test $HAVE_LOG2 = 0 || test $REPLACE_LOG2 = 1]

configure.ac:
gl_FUNC_LOG2
gl_CONDITIONAL([GL_COND_OBJ_LOG2],
               [test $HAVE_LOG2 = 0 || test $REPLACE_LOG2 = 1])
gl_MATH_MODULE_INDICATOR([log2])

Makefile.am:
if GL_COND_OBJ_LOG2
lib_SOURCES += log2.c
endif

Include:
<math.h>

Link:
$(LOG2_LIBM)

License:
LGPL

Maintainer:
all