WL#3090 Japanese Character Set adjustments

added:
  @ mysql-test/include/ctype_utf8_table.inc
    Adding a share file to populate all utf8 values [U+0000..U+FFFF]
modified:
  @ include/m_ctype.h
    Introducing MB2 and MY_PUT_MB2 macros

  @ mysql-test/r/ctype_cp932_binlog_stm.result
  @ mysql-test/r/ctype_eucjpms.result
  @ mysql-test/r/ctype_sjis.result
  @ mysql-test/r/ctype_ujis.result
  @ mysql-test/t/ctype_cp932_binlog_stm.test
  @ mysql-test/t/ctype_eucjpms.test
  @ mysql-test/t/ctype_sjis.test
  @ mysql-test/t/ctype_ujis.test
    Adding test

  @ strings/ctype-cp932.c
  @ strings/ctype-eucjpms.c
  @ strings/ctype-sjis.c
  @ strings/ctype-ujis.c
    Adding new functions using Big-Table approach.

1 files changed, 17 insertions, 0 deletions

diff --git a/include/m_ctype.h b/include/m_ctype.h
index 35d40e8bfa4..597081c5f6e 100644
--- a/include/m_ctype.h
+++ b/include/m_ctype.h
@@ -38,6 +38,23 @@ extern "C" {
 
 #define my_wc_t ulong
 
+
+/*
+  On i386 we store Unicode->CS conversion tables for
+  some character sets using Big-endian order,
+  to copy two bytes at onces.
+  This gives some performance improvement.
+*/
+#ifdef __i386__
+#define MB2(x)                (((x) >> 8) + (((x) & 0xFF) << 8))
+#define MY_PUT_MB2(s, code)   { *((uint16*)(s))= (code); }
+#else
+#define MB2(x)                (x)
+#define MY_PUT_MB2(s, code)   { s[0]= code >> 8; s[1]= code & 0xFF; }
+#endif
+
+
+
 typedef struct unicase_info_st
 {
   uint32 toupper;