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version 0.007; 2007-10-02
* close DATA filehandle when finished reading from it
* fix some tests that were producing false failures on perl 5.6
version 0.006; 2007-10-01
* bugfix: change behaviour of nextafter() when both arguments are
numerically zero to that specified by IEEE 754: the second argument
is returned rather than the first
* bugfix: in hex_float(), cleanly reject non-ASCII digits in exponent
* bugfix: in float_hex(), cleanly reject non-ASCII digits in an
"EXPONENT="-type "zero_strategy" setting
* add IEEE 754r functions nextup() and nextdown()
* add IEEE 754r function totalorder()
* add constant max_number
* hex_float(): accept IEEE 754r special input strings "infinity" and
"snan", in addition to the existing "inf" and "nan"
* hex_float(): make the "0x" prefix in hexadecimal input optional
* float_hex(): new option "hex_prefix_string" to control the "0x" prefix
* test classification functions, examination functions, string
conversion functions, and manipulation functions (all the functions
that were not being tested)
* test all functions for lack of side effects on zero arguments and
purity of zero results
* in documentation, note new standard-conforming behaviour of copysign()
with a NaN second argument
* in documentation, note that hex_float() accepts the special "0.0"
form of input without a sign, as well as with one
* in documentation, where the IEEE standard nature of functions is
noted, add discussion of non-conforming behaviour on NaNs
* in documentation, change some variable names in the synopsis for
clarity
* test POD syntax and coverage, and rename some internal functions to
satisfy the coverage test
* tweak tests on constants to avoid infinite loops if importing constant
functions fails
* build with Module::Build instead of ExtUtils::MakeMaker
* complete dependency list
* include signature in distribution
* in documentation, separate "license" section from "copyright" section
version 0.005; 2007-01-25
* bugfix: change behaviour of copysign() with a NaN as the second
argument to that specified by IEEE 754: it is not an error but
(in the context of Perl's opaque NaNs) results in copying an
unpredictable sign
* add hex_float() function to input floating point values in hexadecimal
* add IEEE 754 function signbit()
* float_id_cmp(): tighten specification of return values to match
Perl's <=> operator (actual behaviour always matched the tighter spec,
it just wasn't documented and tested)
* in documentation, note that the string values of float arguments
are ignored
* in documentation, clarify note about implicit conversion of integer
to float
* in documentation, note that both arguments to nextafter() must be
floating point values
* in documentation, note standard nature of signbit(), copysign(),
and nextafter()
* in documentation, note float_id_cmp()'s relation to the IEEE 754r
function totalorder()
* in documentation, note that Perl does not distinguish between
different NaNs
* in documentation, give a second definition of max_integer (equivalent
to the first)
* add test for consistency of constants
* in documentation, reference Scalar::Number
* remove now-useless test t/use.t
version 0.004; 2007-01-12
* bugfix: correct value for max_integer to 2^(significand_bits+1),
and correct its description in the documentation
* make pos_zero and neg_zero constants into non-constant functions
that return fresh floating point zeroes, if running on a Perl where
floating point zeroes can transmogrify into integer zeroes
* add float_id_cmp() function for total ordering of floats
* in documentation, more details of behaviour of zeroes
* in documentation, discussion of interaction with native integer values
* in documentation, note truncating behaviour of the % operator
* in documentation, note the slightly misleading nature of the names
"significand_bits" and "max_integer"
* reference Data::Integer and perlnumber(1) in documentation
version 0.003; 2006-08-08
* float_hex(): add OPTIONS parameter to control details of output
formatting
* when looking for NaNs, see whether the string "nan" qualifies
* slight clarification to documentation of significand_step
version 0.002; 2006-08-03
* bugfix: in mult_pow2(), copysign(), and nextafter(), take care
to return a pristine signed zero when returning zero: they were
returning zeroes that got broken (due to the Perl bug noted in the
documentation) by internal arithmetic
version 0.001; 2006-08-01
* add IEEE 754 functions copysign() and nextafter()
* test sign of zero using sprintf() to avoid being confused by dualvars
* slight expansion of initial paragraph of documentation
version 0.000; 2006-07-30
* initial released version
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