[gcc r10-8953] libstdc++: Fix memory issue in ranges::lexicographical_compare testcase

[Patrick Palka]

https://gcc.gnu.org/g:f0b66a1831529b9887a3c97bcec5a95aeb6f1c13

commit r10-8953-gf0b66a1831529b9887a3c97bcec5a95aeb6f1c13
Author: Patrick Palka <ppalka@redhat.com>
Date:   Thu Oct 29 10:11:12 2020 -0400

    libstdc++: Fix memory issue in ranges::lexicographical_compare testcase
    
    libstdc++-v3/ChangeLog:
    
            * testsuite/25_algorithms/lexicographical_compare/constrained.cc:
            (test03): Fix initializing the vector vy with the array y of size 4.
    
    (cherry picked from commit 2e0216f9c4db8fde09706f57e6a6d80161c0da07)

Diff:
---
 .../testsuite/25_algorithms/lexicographical_compare/constrained.cc      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/constrained.cc b/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/constrained.cc
index b82c872bbbb..2019bbc75e4 100644
--- a/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/constrained.cc
+++ b/libstdc++-v3/testsuite/25_algorithms/lexicographical_compare/constrained.cc
@@ -136,7 +136,7 @@ test03()
       VERIFY( !ranges::lexicographical_compare(cy.begin(), cy.end(),
 					       cz.begin(), cz.end()) );
 
-      std::vector<int> vx(x, x+5), vy(y, y+5);
+      std::vector<int> vx(x, x+5), vy(y, y+4);
       VERIFY( ranges::lexicographical_compare(vx, vy) );
       VERIFY( !ranges::lexicographical_compare(vx, vy, ranges::greater{}) );
       VERIFY( !ranges::lexicographical_compare(vy, vx) );