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fix gcc 8 compiler warnings

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There were two newly enabled warnings:
1. cast for a function pointers. Affected sql_analyse.h, mi_write.c
   and ma_write.cc, mf_iocache-t.cc, mysqlbinlog.cc, encryption.cc, etc

2. memcpy/memset of nontrivial structures. Fixed as:
* the warning disabled for InnoDB
* TABLE, TABLE_SHARE, and TABLE_LIST got a new method reset() which
  does the bzero(), which is safe for these classes, but any other
  bzero() will still cause a warning
* Table_scope_and_contents_source_st uses `TABLE_LIST *` (trivial)
  instead of `SQL_I_List<TABLE_LIST>` (not trivial) so it's safe to
  bzero now.
* added casts in debug_sync.cc and sql_select.cc (for JOIN)
* move assignment method for MDL_request instead of memcpy()
* PARTIAL_INDEX_INTERSECT_INFO::init() instead of bzero()
* remove constructor from READ_RECORD() to make it trivial
* replace some memcpy() with c++ copy assignments
This commit is contained in:
Sergei Golubchik
2019-03-12 16:27:19 +01:00
parent ddfa722a03
commit 3d2d060b62
33 changed files with 166 additions and 136 deletions
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2
sql/handler.h
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@ -1687,7 +1687,6 @@ struct Table_scope_and_contents_source_st
uint options; /* OR of HA_CREATE_ options */
uint merge_insert_method;
uint extra_size; /* length of extra data segment */
SQL_I_List<TABLE_LIST> merge_list;
handlerton *db_type;
/**
Row type of the table definition.
@ -1716,6 +1715,7 @@ struct Table_scope_and_contents_source_st
TABLE_LIST *pos_in_locked_tables;
MDL_ticket *mdl_ticket;
bool table_was_deleted;
TABLE_LIST *merge_list;
void init()
{