From 3e9c52250a3ab6664c53ea6b3923acfbe8e09e4e Mon Sep 17 00:00:00 2001 From: Davi Arnaut Date: Wed, 20 Oct 2010 16:21:40 -0200 Subject: Bug#45288: pb2 returns a lot of compilation warnings Fix assorted warnings that are generated in optimized builds. Most of it is silencing variables that are set but unused. This patch also introduces the MY_ASSERT_UNREACHABLE macro which helps the compiler to deduce that a certain piece of code is unreachable. include/my_compiler.h: Use GCC's __builtin_unreachable if available. It allows GCC to deduce the unreachability of certain code paths, thus avoiding warnings that, for example, accused that a variable could be used without being initialized (due to unreachable code paths). --- sql/sql_help.cc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sql/sql_help.cc') diff --git a/sql/sql_help.cc b/sql/sql_help.cc index 2818aa5082c..c21968cb86e 100644 --- a/sql/sql_help.cc +++ b/sql/sql_help.cc @@ -686,7 +686,7 @@ bool mysqld_help(THD *thd, const char *mask) if (count_topics == 0) { - int key_id; + int UNINIT_VAR(key_id); if (!(select= prepare_select_for_name(thd,mask,mlen,tables,tables[3].table, used_fields[help_keyword_name].field, -- cgit v1.2.1