isprintに渡す時にunsinged charにキャストすることでisctype.cのアサーションを回避

diff --git a/src/wizard1.c b/src/wizard1.c
index 26f5a79..511380a 100644 (file)
--- a/src/wizard1.c
+++ b/src/wizard1.c
@@ -1987,7 +1987,7 @@ static void spoil_out(cptr str)
                bool wrap = (ch == '\n');
 
 #ifdef JP
-               if (!isprint(ch) && !k_flag && !iskanji_flag) ch = ' ';
+               if (!isprint((unsigned char)ch) && !k_flag && !iskanji_flag) ch = ' ';
                iskanji_flag = k_flag && !iskanji_flag;
 #else
                if (!isprint(ch)) ch = ' ';
@@ -2026,7 +2026,7 @@ static void spoil_out(cptr str)
 
 #ifdef JP
                                        k_flag_local = iskanji((unsigned char)(*tail));
-                                       if (isprint(*tail) || k_flag_local || iskanji_flag_local) break;
+                                       if (isprint((unsigned char)*tail) || k_flag_local || iskanji_flag_local) break;
                                        iskanji_flag_local = k_flag_local && !iskanji_flag_local;
 #else
                                        if (isprint(*tail)) break;