Fix a bug in cut()

1 files changed, 1 insertions, 1 deletions

diff --git a/louloulibs/utils/string.cpp b/louloulibs/utils/string.cpp
index 2447f84..635e71a 100644
--- a/louloulibs/utils/string.cpp
+++ b/louloulibs/utils/string.cpp
@@ -16,7 +16,7 @@ std::vector<std::string> cut(const std::string& val, const std::size_t size)
       // UTF-8 codepoints.
       std::size_t s = 0;
       auto codepoint_size = utils::get_next_codepoint_size(val[pos + s]);
-      while (s + codepoint_size <= size)
+      while (s + codepoint_size <= size && pos + s < val.size())
         {
           s += codepoint_size;
           codepoint_size = utils::get_next_codepoint_size(val[pos + s]);