coq - The formal proof system

Age	Commit message (Collapse)	Author
2020-05-19	[primitive floats] Add low level hexadecimal printing	Pierre Roux

2020-05-09	Add hexadecimal numerals	Pierre Roux
	We add hexadecimal numerals according to the following regexp 0[xX][0-9a-fA-F][0-9a-fA-F_](\.[0-9a-fA-F_]+)?([pP][+-]?[0-9][0-9_])? This is unfortunately a rather large commit. I suggest reading it in the following order: * test-suite/output/ZSyntax.{v,out} new test * test-suite/output/Int63Syntax.{v,out} '' * test-suite/output/QArithSyntax.{v,out} '' * test-suite/output/RealSyntax.{v,out} '' * test-suite/output/FloatSyntax.{v,out} '' * interp/numTok.ml{i,} extending numeral tokens * theories/Init/Hexadecimal.v adaptation of Decimal.v for the new hexadecimal Numeral Notation * theories/Init/Numeral.v new interface for Numeral Notation (basically, a numeral is either a decimal or an hexadecimal) * theories/Init/Nat.v add hexadecimal numeral notation to nat * theories/PArith/BinPosDef.v '' positive * theories/ZArith/BinIntDef.v '' Z * theories/NArith/BinNatDef.v '' N * theories/QArith/QArith_base.v '' Q * interp/notation.ml{i,} adapting implementation of numeral notations * plugins/syntax/numeral.ml '' * plugins/syntax/r_syntax.ml adapt parser for real numbers * plugins/syntax/float_syntax.ml adapt parser for primitive floats * theories/Init/Prelude.v register parser for nat * adapting the test-suite (test-suite/output/NumeralNotations.{v,out} and test-suite/output/SearchPattern.out) * remaining ml files (interp/constrex{tern,pr_ops}.ml where two open had to be permuted)
2020-03-26	Print a warning when parsing non floating-point values.	Pierre Roux
	For instance, parsing 0.1 will print a warning whereas parsing 0.5 won't.
2019-11-01	Make primitive float work on Windows	Pierre Roux

2019-11-01	Pretty-printing primitive float constants	Erik Martin-Dorel
	* map special floats to registered CRef's * kernel/float64.mli: add {is_infinity, is_neg_infinity} functions * kernel/float64.ml: Replace string_of_float with a safe pretty-printing function Namely: let to_string_raw f = Printf.sprintf "%.17g" f let to_string f = if is_nan f then "nan" else to_string_raw f Summary: * printing a binary64 float in 17 decimal places and parsing it again will yield the same float, e.g.: let f1 = 1. +. (0x1p-53 +. 0x1p-105) let f2 = float_of_string (to_string f1) f1 = f2 * OCaml's string_of_float gives a sign to nan values which shouldn't be displayed as all NaNs are considered equal here.