Index: src/func.c
==================================================================
--- src/func.c
+++ src/func.c
@@ -979,11 +979,10 @@
 /*
 ** The char() function takes zero or more arguments, each of which is
 ** an integer.  It constructs a string where each character of the string
 ** is the unicode character for the corresponding integer argument.
 */
-#ifndef SQLITE_OMIT_UTF16
 static void charFunc(
   sqlite3_context *context,
   int argc,
   sqlite3_value **argv
 ){
@@ -998,24 +997,28 @@
     sqlite3_int64 x;
     unsigned c;
     x = sqlite3_value_int64(argv[i]);
     if( x<0 || x>0x10ffff ) x = 0xfffd;
     c = (unsigned)(x & 0x1fffff);
-    if( c<=0xFFFF ){
-      if( c>=0xd800 && c<=0xdfff ) c = 0xfffd;
-      *zOut++ = (u8)(c&0x00FF);
-      *zOut++ = (u8)((c>>8)&0x00FF);
+    if( c<0x00080 ){
+      *zOut++ = (u8)(c&0xFF);
+    }else if( c<0x00800 ){
+      *zOut++ = 0xC0 + (u8)((c>>6)&0x1F);
+      *zOut++ = 0x80 + (u8)(c & 0x3F);
+    }else if( c<0x10000 ){
+      *zOut++ = 0xE0 + (u8)((c>>12)&0x0F);
+      *zOut++ = 0x80 + (u8)((c>>6) & 0x3F);
+      *zOut++ = 0x80 + (u8)(c & 0x3F);
     }else{
-      *zOut++ = (u8)(((c>>10)&0x003F) + (((c-0x10000)>>10)&0x00C0));
-      *zOut++ = (u8)(0x00D8 + (((c-0x10000)>>18)&0x03));
-      *zOut++ = (u8)(c&0x00FF);
-      *zOut++ = (u8)(0x00DC + ((c>>8)&0x03));
-    }
-  }
-  sqlite3_result_text16le(context, (char*)z, (int)(zOut-z), sqlite3_free);
-}
-#endif
+      *zOut++ = 0xF0 + (u8)((c>>18) & 0x07);
+      *zOut++ = 0x80 + (u8)((c>>12) & 0x3F);
+      *zOut++ = 0x80 + (u8)((c>>6) & 0x3F);
+      *zOut++ = 0x80 + (u8)(c & 0x3F);
+    }                                                    \
+  }
+  sqlite3_result_text(context, (char*)z, (int)(zOut-z), sqlite3_free);
+}
 
 /*
 ** The hex() function.  Interpret the argument as a blob.  Return
 ** a hexadecimal rendering as text.
 */
@@ -1641,13 +1644,11 @@
     FUNCTION2(length,            1, 0, 0, lengthFunc,  SQLITE_FUNC_LENGTH),
     FUNCTION(instr,              2, 0, 0, instrFunc        ),
     FUNCTION(substr,             2, 0, 0, substrFunc       ),
     FUNCTION(substr,             3, 0, 0, substrFunc       ),
     FUNCTION(unicode,            1, 0, 0, unicodeFunc      ),
-#ifndef SQLITE_OMIT_UTF16
     FUNCTION(char,              -1, 0, 0, charFunc         ),
-#endif
     FUNCTION(abs,                1, 0, 0, absFunc          ),
 #ifndef SQLITE_OMIT_FLOATING_POINT
     FUNCTION(round,              1, 0, 0, roundFunc        ),
     FUNCTION(round,              2, 0, 0, roundFunc        ),
 #endif

Index: test/func.test
==================================================================
--- test/func.test
+++ test/func.test
@@ -1291,16 +1291,10 @@
 } {1}
 
 do_execsql_test func-30.1 {SELECT unicode('$');} 36
 do_execsql_test func-30.2 [subst {SELECT unicode('\u00A2');}] 162
 do_execsql_test func-30.3 [subst {SELECT unicode('\u20AC');}] 8364
-
-ifcapable !utf16 {
-  finish_test
-  return
-}
-
 do_execsql_test func-30.4 {SELECT char(36,162,8364);} [subst {$\u00A2\u20AC}]
 
 for {set i 1} {$i<0xd800} {incr i 13} {
   do_execsql_test func-30.5.$i {SELECT unicode(char($i))} $i
 }