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Add in bit_xor function (approved by Sergei)

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sql/item_sum.cc:
  Add in bit_xor class functions.
sql/item_sum.h:
  Add bit_xor class.
sql/lex.h:
  Add in bit_xor symbol.
sql/sql_yacc.yy:
  Add in bit_xor function
BitKeeper/etc/logging_ok:
  Logging to logging@openlogging.org accepted
This commit is contained in:
unknown 2003-10-15 02:11:03 -04:00
parent a14c1e411c
commit acb47c93be
5 changed files with 40 additions and 0 deletions
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1
BitKeeper/etc/logging_ok
View File

@ -30,6 +30,7 @@ greg@mysql.com
guilhem@mysql.com
gweir@build.mysql.com
gweir@work.mysql.com
harrison@mysql.com
heikki@donna.mysql.fi
heikki@hundin.mysql.fi
heikki@rescue.

23
sql/item_sum.cc
View File

@ -625,6 +625,20 @@ bool Item_sum_or::add()
return 0;
}
Item *Item_sum_xor::copy_or_same(THD* thd)
{
return new (&thd->mem_root) Item_sum_xor(thd, *this);
}
bool Item_sum_xor::add()
{
ulonglong value= (ulonglong) args[0]->val_int();
if (!args[0]->null_value)
bits^=value;
return 0;
}
Item *Item_sum_and::copy_or_same(THD* thd)
{
return new (&thd->mem_root) Item_sum_and(thd, *this);
@ -912,6 +926,15 @@ void Item_sum_or::update_field()
int8store(res,nr);
}
void Item_sum_xor::update_field()
{
ulonglong nr;
char *res=result_field->ptr;
nr=uint8korr(res);
nr^= (ulonglong) args[0]->val_int();
int8store(res,nr);
}
void Item_sum_and::update_field()
{

12
sql/item_sum.h
View File

@ -484,6 +484,18 @@ class Item_sum_and :public Item_sum_bit
Item *copy_or_same(THD* thd);
};
class Item_sum_xor :public Item_sum_bit
{
public:
Item_sum_xor(Item *item_par) :Item_sum_bit(item_par,LL(0)) {}
Item_sum_xor(THD *thd, Item_sum_xor &item) :Item_sum_bit(thd, item) {}
bool add();
void update_field();
const char *func_name() const { return "bit_xor"; }
Item *copy_or_same(THD* thd);
};
/*
** user defined aggregates
*/

1
sql/lex.h
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@ -465,6 +465,7 @@ static SYMBOL sql_functions[] = {
{ "BIT_COUNT", SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_bit_count)},
{ "BIT_OR", SYM(BIT_OR),0,0},
{ "BIT_AND", SYM(BIT_AND),0,0},
{ "BIT_XOR", SYM(BIT_XOR),0,0},
{ "CAST", SYM(CAST_SYM),0,0},
{ "CEIL", SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_ceiling)},
{ "CEILING", SYM(FUNC_ARG1),0,CREATE_FUNC(create_func_ceiling)},

3
sql/sql_yacc.yy
View File

@ -449,6 +449,7 @@ bool my_yyoverflow(short **a, YYSTYPE **b,int *yystacksize);
%token BETWEEN_SYM
%token BIT_AND
%token BIT_OR
%token BIT_XOR
%token CASE_SYM
%token CONCAT
%token CONCAT_WS
@ -2846,6 +2847,8 @@ sum_expr:
{ $$=new Item_sum_and($3); }
| BIT_OR '(' in_sum_expr ')'
{ $$=new Item_sum_or($3); }
| BIT_XOR '(' in_sum_expr ')'
{ $$=new Item_sum_xor($3); }
| COUNT_SYM '(' opt_all '*' ')'
{ $$=new Item_sum_count(new Item_int((int32) 0L,1)); }
| COUNT_SYM '(' in_sum_expr ')'