reserve capacity to fast_oss

2025-09-29 01:29:35 +08:00 · 2014-03-16 20:48:37 +02:00
parent 08ba1791ba
commit 0209765b8f
2 changed files with 10 additions and 1 deletions
--- a/include/c11log/details/fast_oss.h
+++ b/include/c11log/details/fast_oss.h
@@ -40,6 +40,12 @@ protected:

    virtual std::streamsize xsputn(const char_type* s, std::streamsize count) override
    {
+
+		auto ssize = _str.size();
+		auto cap_left = _str.capacity() - ssize;
+		if(cap_left < static_cast<std::size_t>(count))
+			_str.reserve(ssize + count + 128);
+
        _str.append(s, static_cast<unsigned int>(count));
        return count;
    }