Commit 6a6f7234 authored by gkodinov/kgeorge@magare.gmz's avatar gkodinov/kgeorge@magare.gmz

Merge gkodinov@bk-internal.mysql.com:/home/bk/mysql-5.0-opt

into  magare.gmz:/home/kgeorge/mysql/autopush/B28400-5.0-opt
parents 287f3485 f45601ce
......@@ -3663,33 +3663,38 @@ static void fetch_long_with_conversion(MYSQL_BIND *param, MYSQL_FIELD *field,
case MYSQL_TYPE_FLOAT:
{
/*
We need to store data in the buffer before the truncation check to
We need to mark the local variable volatile to
workaround Intel FPU executive precision feature.
(See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=323 for details)
AFAIU it does not guarantee to work.
*/
float data;
volatile float data;
if (is_unsigned)
{
data= (float) ulonglong2double(value);
*param->error= ((ulonglong) value) != ((ulonglong) data);
}
else
data= (float) value;
{
data= (float)value;
*param->error= value != ((longlong) data);
}
floatstore(buffer, data);
*param->error= is_unsigned ?
((ulonglong) value) != ((ulonglong) (*(float*) buffer)) :
((longlong) value) != ((longlong) (*(float*) buffer));
break;
}
case MYSQL_TYPE_DOUBLE:
{
double data;
volatile double data;
if (is_unsigned)
{
data= ulonglong2double(value);
*param->error= ((ulonglong) value) != ((ulonglong) data);
}
else
{
data= (double)value;
*param->error= value != ((longlong) data);
}
doublestore(buffer, data);
*param->error= is_unsigned ?
((ulonglong) value) != ((ulonglong) (*(double*) buffer)) :
((longlong) value) != ((longlong) (*(double*) buffer));
break;
}
case MYSQL_TYPE_TIME:
......
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