coq - The formal proof system

Age	Commit message (Collapse)	Author
2020-11-05	[numeral notation] R	Pierre Roux
	Previously real constants were parsed by an unproved OCaml code. The parser and printer are now implemented in Coq, which will enable a proof and hopefully make it easier to maintain / make evolve. Previously reals were all parsed as an integer, an integer multiplied by a power of ten or an integer divided by a power of ten. This means 1.02 and 102e-2 were both parsed as 102 / 100 and could not be tell apart when printing. So the printer had to choose between two representations : without exponent or without decimal dot. The choice was made heuristically toward a most compact representation. Now, decimal dot is parsed as a rational and exponents are parsed as a product or division by a power of ten. For instance, 1.02 is parsed as Q2R (102 # 100) whereas 102e-2 is parsed as IZR 102 / IZR (Z.pow_pos 10 2). 1.02 and 102e-2 remain equal (proved by reflexivity) but 1.02e1 = Q2R (102 # 100) * 10 and 10.2 = Q2R (102 # 10) no longer are.
2016-06-08	Compilation via pack for plugins of the stdlib	Pierre Letouzey
	For now, the pack name reuse the previous .cma name of the plugin, (extraction_plugin, etc). The earlier .mllib files in plugins are now named .mlpack. They are also handled by bin/ocamllibdep, just as .mllib. We've slightly modified ocamllibdep to help setting the -for-pack options: in .mlpack.d files, there are some extra variables such as foo/bar_FORPACK := -for-pack Baz when foo/bar.ml is mentioned in baz.mlpack. When a plugin is calling a function from another plugin, the name need to be qualified (Foo_plugin.Bar.baz instead of Bar.baz). Btw, we discard the generated files plugins//*_mod.ml, they are obsolete now, replaced by DECLARE PLUGIN. Nota: there's a potential problem in the micromega directory, some .ml files are linked both in micromega_plugin and in csdpcert. And we now compile these files with a -for-pack, even if they are not packed in the case of csdpcert. In practice, csdpcert seems to work well, but we should verify with OCaml experts.