Fix wctomb use

wctomb(NULL, _) returns "nonzero if the encoding has nontrivial shift state, or zero if the encoding is stateless."

I assume the intentation was to get the size of the target buffer.
Use MB_CUR_MAX for this.

diff --git a/src/keycode.cpp b/src/keycode.cpp
index c3c06bb7f7b96d5b14a6522483852392d482d5c0..df3ebc9e316cd273a7e96590a4747cbabba251c7 100644 (file)
--- a/src/keycode.cpp
+++ b/src/keycode.cpp
@@ -293,8 +293,7 @@ KeyPress::KeyPress(const irr::SEvent::SKeyInput &in)
        if (valid_kcode(Key)) {
                m_name = KeyNames[Key];
        } else {
-               size_t maxlen = wctomb(NULL, Char);
-               m_name.resize(maxlen+1, '\0');
+               m_name.resize(MB_CUR_MAX+1, '\0');
                int written = wctomb(&m_name[0], Char);
                assert (written >= 0 && "unexpected multibyte character");
        }