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1ab17d9f64
* lib/math.in.h (ilogb): New declaration. * lib/ilogb.c: New file. * m4/ilogb.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whether ilogb is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_ILOGB, HAVE_ILOGB, REPLACE_ILOGB. * modules/math (Makefile.am): Substitute GNULIB_ILOGB, HAVE_ILOGB, REPLACE_ILOGB. * modules/ilogb: New file. * tests/test-math-c++.cc: Check the declaration of ilogb. * doc/posix-functions/ilogb.texi: Mention the new module.
35 lines
558 B
Plaintext
35 lines
558 B
Plaintext
Description:
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ilogb() function: get exponent as integer.
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Files:
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lib/ilogb.c
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m4/ilogb.m4
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m4/mathfunc.m4
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Depends-on:
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math
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isfinite [test $HAVE_ILOGB = 0 || test $REPLACE_ILOGB = 1]
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frexp [test $HAVE_ILOGB = 0 || test $REPLACE_ILOGB = 1]
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isnand [test $HAVE_ILOGB = 0 || test $REPLACE_ILOGB = 1]
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configure.ac:
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gl_FUNC_ILOGB
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if test $HAVE_ILOGB = 0 || test $REPLACE_ILOGB = 1; then
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AC_LIBOBJ([ilogb])
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fi
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gl_MATH_MODULE_INDICATOR([ilogb])
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Makefile.am:
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Include:
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<math.h>
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Link:
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$(ILOGB_LIBM)
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License:
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LGPL
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Maintainer:
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Bruno Haible
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