aspell/aspell-0.60.6.1-fix-back-on-empty-vector.patch
2023-02-27 12:19:54 -05:00

39 lines
1.4 KiB
Diff

From c6755a399e8a31cbee5129dde5124f9c54a47ab6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nikola=20Forr=C3=B3?= <nforro@redhat.com>
Date: Wed, 4 Apr 2018 14:58:03 +0200
Subject: [PATCH] Do not call back() on an empty vector
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Calling std::vector::back() on an empty container is undefined.
Avoid doing that, simply return pointer to the beginning in case
the vector is empty.
Signed-off-by: Nikola Forró <nforro@redhat.com>
---
common/vector.hpp | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/common/vector.hpp b/common/vector.hpp
index 782e4b0..cb344bd 100644
--- a/common/vector.hpp
+++ b/common/vector.hpp
@@ -36,13 +36,13 @@ namespace acommon
}
T * data() {return &*this->begin();}
T * data(int pos) {return &*this->begin() + pos;}
- T * data_end() {return &this->back()+1;}
+ T * data_end() {return this->empty() ? &*this->begin() : &this->back()+1;}
T * pbegin() {return &*this->begin();}
- T * pend() {return &this->back()+1;}
+ T * pend() {return this->empty() ? &*this->begin() : &this->back()+1;}
const T * pbegin() const {return &*this->begin();}
- const T * pend() const {return &this->back()+1;}
+ const T * pend() const {return this->empty() ? &*this->begin() : &this->back()+1;}
template <typename U>
U * datap() {