Merge pull request #2144 from XyFreak/gcc10_type_limits

Fix issue#1939: Cast character to unsigned for comparison
2020-05-28 12:59:57 +02:00 · 2020-05-28 12:59:57 +02:00 · 61832afe15
commit 61832afe15
parent 5ff4d7b7ff 23051df2c7
2 changed files with 2 additions and 2 deletions
--- a/include/nlohmann/detail/input/lexer.hpp
+++ b/include/nlohmann/detail/input/lexer.hpp
@ -1367,7 +1367,7 @@ scan_number_done:
        std::string result;
        for (const auto c : token_string)
        {
-            if ('\x00' <= c and c <= '\x1F')
+            if (static_cast<unsigned char>(c) <= '\x1F')
            {
                // escape control characters
                std::array<char, 9> cs{{}};