diff options
Diffstat (limited to 'sql/item.cc')
| -rw-r--r-- | sql/item.cc | 73 |
1 files changed, 26 insertions, 47 deletions
diff --git a/sql/item.cc b/sql/item.cc index 7693ef428c6..946c0f24fe1 100644 --- a/sql/item.cc +++ b/sql/item.cc @@ -44,10 +44,10 @@ Item::Item() current_thd->free_list=this; } -void Item::set_name(char *str,uint length) +void Item::set_name(const char *str,uint length) { if (!length) - name=str; // Used by AS + name= (char*) str; // Used by AS else { while (length && !my_isgraph(system_charset_info,*str)) @@ -303,21 +303,13 @@ void Item_param::set_int(longlong i) item_type = INT_ITEM; } -void Item_param::set_double(double i) +void Item_param::set_double(double value) { - double value = (double)i; real_value=value; item_result_type = REAL_RESULT; item_type = REAL_ITEM; } -void Item_param::set_double(float i) -{ - float value = (float)i; - real_value=(double)value; - item_result_type = REAL_RESULT; - item_type = REAL_ITEM; -} void Item_param::set_value(const char *str, uint length) { @@ -326,6 +318,7 @@ void Item_param::set_value(const char *str, uint length) item_type = STRING_ITEM; } + void Item_param::set_longdata(const char *str, ulong length) { /* TODO: Fix this for binary handling by making use of @@ -334,16 +327,11 @@ void Item_param::set_longdata(const char *str, ulong length) str_value.append(str,length); } -void Item_param::set_long_end() -{ - long_data_supplied = true; - item_result_type = STRING_RESULT; -}; -int Item_param::save_in_field(Field *field) +int Item_param::save_in_field(Field *field) { if (null_value) - return set_field_to_null(field); + return (int) set_field_to_null(field); field->set_notnull(); if (item_result_type == INT_RESULT) @@ -357,24 +345,21 @@ int Item_param::save_in_field(Field *field) return (field->store(nr)) ? -1 : 0; } String *result; - CHARSET_INFO *cs=default_charset_info;//fix this + CHARSET_INFO *cs=default_charset_info; //fix this result=val_str(&str_value); return (field->store(result->ptr(),result->length(),cs)) ? -1 : 0; } + void Item_param::make_field(Send_field *tmp_field) { init_make_field(tmp_field,FIELD_TYPE_STRING); } + double Item_param::val() { - /* Cross check whether we need need this conversions ? or direct - return(real_value) is enough ? - */ - - switch(item_result_type) { - + switch (item_result_type) { case STRING_RESULT: return (double)atof(str_value.ptr()); case INT_RESULT: @@ -384,16 +369,12 @@ double Item_param::val() } } + longlong Item_param::val_int() { - /* Cross check whether we need need this conversions ? or direct - return(int_value) is enough ? - */ - - switch(item_result_type) { - + switch (item_result_type) { case STRING_RESULT: - return (longlong)strtoll(str_value.ptr(),(char**) 0,10); + return strtoll(str_value.ptr(),(char**) 0,10); case REAL_RESULT: return (longlong) (real_value+(real_value > 0 ? 0.5 : -0.5)); default: @@ -401,14 +382,10 @@ longlong Item_param::val_int() } } + String *Item_param::val_str(String* str) { - /* Cross check whether we need need this conversions ? or direct - return(&str_value) is enough ? - */ - - switch(item_result_type) { - + switch (item_result_type) { case INT_RESULT: str->set(int_value); return str; @@ -421,6 +398,7 @@ String *Item_param::val_str(String* str) } /* End of Item_param related */ + void Item_copy_string::copy() { String *res=item->val_str(&str_value); @@ -438,7 +416,7 @@ String *Item_copy_string::val_str(String *str) } /* -** Functions to convert item to field (for send_fields) + Functions to convert item to field (for send_fields) */ /* ARGSUSED */ @@ -614,7 +592,7 @@ void Item_field::save_org_in_field(Field *to) } } -int Item_field::save_in_field(Field *to) +int Item_field::save_in_field(Field *to) { if (result_field->is_null()) { @@ -631,13 +609,13 @@ int Item_field::save_in_field(Field *to) } -int Item_null::save_in_field(Field *field) +int Item_null::save_in_field(Field *field) { return set_field_to_null(field); } -int Item::save_in_field(Field *field) +int Item::save_in_field(Field *field) { int error; if (result_type() == STRING_RESULT || @@ -674,7 +652,7 @@ int Item::save_in_field(Field *field) return (error) ? -1 : 0; } -int Item_string::save_in_field(Field *field) +int Item_string::save_in_field(Field *field) { String *result; CHARSET_INFO *cs=field->binary()?default_charset_info:((Field_str*)field)->charset(); @@ -685,7 +663,7 @@ int Item_string::save_in_field(Field *field) return (field->store(result->ptr(),result->length(),cs)) ? -1 : 0; } -int Item_int::save_in_field(Field *field) +int Item_int::save_in_field(Field *field) { longlong nr=val_int(); if (null_value) @@ -694,7 +672,7 @@ int Item_int::save_in_field(Field *field) return (field->store(nr)) ? -1 : 0; } -int Item_real::save_in_field(Field *field) +int Item_real::save_in_field(Field *field) { double nr=val(); if (null_value) @@ -716,7 +694,8 @@ inline uint char_val(char X) X-'a'+10); } -Item_varbinary::Item_varbinary(const char *str, uint str_length, CHARSET_INFO *cs) +Item_varbinary::Item_varbinary(const char *str, uint str_length, + CHARSET_INFO *cs) { name=(char*) str-2; // Lex makes this start with 0x max_length=(str_length+1)/2; @@ -748,7 +727,7 @@ longlong Item_varbinary::val_int() } -int Item_varbinary::save_in_field(Field *field) +int Item_varbinary::save_in_field(Field *field) { int error; CHARSET_INFO *cs=field->binary()?default_charset_info:((Field_str*)field)->charset(); |