From 08189431706298d599cffea2e41dd51290305ba3 Mon Sep 17 00:00:00 2001
From: Hugo Herbelin
Date: Fri, 31 Jan 2020 13:36:34 +0100
Subject: Centralizing all kinds of numeral string management in numTok.ml.

Four types of numerals are introduced:
- positive natural numbers (may include "_", e.g. to separate thousands, and leading 0)
- integer numbers (may start with a minus sign)
- positive numbers with mantisse and signed exponent
- signed numbers with mantisse and signed exponent

In passing, we clarify that the lexer parses only positive numerals,
but the numeral interpreters may accept signed numerals.

Several improvements and fixes come from Pierre Roux. See
https://github.com/coq/coq/pull/11703 for details. Thanks to him.
---
 dev/top_printers.ml | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'dev/top_printers.ml')

diff --git a/dev/top_printers.ml b/dev/top_printers.ml
index 96dbf9142b..7002cbffac 100644
--- a/dev/top_printers.ml
+++ b/dev/top_printers.ml
@@ -86,6 +86,8 @@ let pptype = (fun x -> try pp(envpp (fun env evm t -> pr_ltype_env env evm t) x)
 let ppfconstr c = ppconstr (CClosure.term_of_fconstr c)
 
 let ppbigint n = pp (str (Bigint.to_string n));;
+let ppnumtokunsigned n = pp (NumTok.Unsigned.print n)
+let ppnumtokunsignednat n = pp (NumTok.UnsignedNat.print n)
 
 let prset pr l = str "[" ++ hov 0 (prlist_with_sep spc pr l) ++ str "]"
 let ppintset l = pp (prset int (Int.Set.elements l))
-- 
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