From 5e01cd323e434b6130bb8dab06b28a252a1afb7a Mon Sep 17 00:00:00 2001
From: Charles Baker <charles.baker@sweetsoftware.co.nz>
Date: Mon, 15 Jul 2024 21:29:25 +1200
Subject: [PATCH] Leave the RHS of a GrammarSymbolSet move default initialized

Previously the RHS was left as it was when, technically, it should be
restored to its default initialized state.  This fix exchanges the
RHS GrammarSymbolSet values with their default initialized values to
correct that error.
---
 src/lalr/GrammarSymbolSet.cpp | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/lalr/GrammarSymbolSet.cpp b/src/lalr/GrammarSymbolSet.cpp
index 3601ea2..682083f 100644
--- a/src/lalr/GrammarSymbolSet.cpp
+++ b/src/lalr/GrammarSymbolSet.cpp
@@ -20,23 +20,23 @@ static const size_t BITS_PER_ELEMENT = sizeof(size_t) * 8;
 
 GrammarSymbolSet::GrammarSymbolSet( size_t symbols )
 : set_()
-, minimum_(numeric_limits<size_t>::max())
-, maximum_(numeric_limits<size_t>::min())
+, minimum_( numeric_limits<size_t>::max() )
+, maximum_( numeric_limits<size_t>::min() )
 {
     set_.resize( symbols / BITS_PER_ELEMENT );
 }
 
 GrammarSymbolSet::GrammarSymbolSet( GrammarSymbolSet&& set )
 : set_( std::move(set.set_) )
-, minimum_(set.minimum_)
-, maximum_(set.maximum_)
+, minimum_( std::exchange(set.minimum_, numeric_limits<size_t>::max()) )
+, maximum_( std::exchange(set.maximum_, numeric_limits<size_t>::min()) )
 {
 }
 
 GrammarSymbolSet::GrammarSymbolSet( const GrammarSymbolSet& set )
 : set_( set.set_ )
-, minimum_(set.minimum_)
-, maximum_(set.maximum_)
+, minimum_( set.minimum_ )
+, maximum_( set.maximum_ )
 {
 }