version 0.013; 2017-07-29 * no longer include a Makefile.PL in the distribution * in documentation, use four-column indentation for all verbatim material * in META.{yml,json}, point to public bug tracker version 0.012; 2012-02-04 * include META.json in distribution * convert .cvsignore to .gitignore * add MYMETA.json to .gitignore version 0.011; 2010-10-21 * port to Perl 5.13.6, where changed behaviour of signed zeroes in Perl arithmetic broke nextdown() and nextafter() and caused false test failures for several other functions version 0.010; 2010-07-26 * use simpler "parent" pragma in place of "base" * in documentation, use the term "truth value" instead of the less precise "boolean" * check for required Perl version at runtime * use full stricture in test suite * use full stricture in Build.PL * in Build.PL, explicitly declare configure-time requirements * remove bogus "exit 0" from Build.PL * add MYMETA.yml to .cvsignore version 0.009; 2008-04-06 * refer to optional constants more carefully in the code, to avoid syntax problems on systems that lack infinities and NaNs * fix a skip count that caused false test failures on systems lacking signed zeroes version 0.008; 2008-04-02 * bugfix: in initialisation, correctly override any ambient $SIG{__DIE__} 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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