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Backport my_strntod() from 5.0

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Change string->float conversion to delay division as long as possible.
This gives us more exact integer->float conversion for numbers of type '123.45E+02' (Bug #7740)




client/mysql.cc:
  Fix wront usage of charset (found during review of pushed code)
include/m_string.h:
  Backported my_strtod() from 5.0
mysql-test/mysql-test-run.sh:
  Run also mysql_client_test with --debug
mysql-test/r/ps_1general.result:
  Safety fix (if mysql_client_test.test fails)
mysql-test/r/type_float.result:
  More test
mysql-test/t/mysql_client_test.test:
  Comments for what to do if this test fails
mysql-test/t/ps_1general.test:
  Safety fix (if mysql_client_test.test fails)
mysql-test/t/type_float.test:
  More test to better test new strtod() function
  Test also bug #7740 (wrong comparsion between integer and float-in-integer-range)
sql/field.cc:
  Backport my_strntod() from 5.0
sql/item.cc:
  Backport my_strntod() from 5.0
sql/item.h:
  Backport my_strntod() from 5.0
sql/item_func.h:
  Backport my_strntod() from 5.0
sql/item_strfunc.cc:
  Backport my_strntod() from 5.0
sql/item_sum.cc:
  Backport my_strntod() from 5.0
sql/item_sum.h:
  Backport my_strntod() from 5.0
sql/procedure.h:
  Backport my_strntod() from 5.0
strings/ctype-simple.c:
  Backport my_strntod() from 5.0
strings/ctype-ucs2.c:
  Backport my_strntod() from 5.0
strings/strtod.c:
  Backport my_strntod() from 5.0
  Change conversion to delay division as long as possible.
  This gives us more exact integer-> float conversion for numbers of type '123.45E+02'
This commit is contained in:
unknown 2005-02-22 12:51:23 +02:00
commit cb8d9c3ad4
19 changed files with 239 additions and 103 deletions
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9
strings/ctype-ucs2.c
View file

@ -946,13 +946,10 @@ double my_strntod_ucs2(CHARSET_INFO *cs __attribute__((unused)),
break; /* Can't be part of double */
*b++= (char) wc;
}
*b= 0;
errno= 0;
res=my_strtod(buf, endptr);
*err= errno;
if (endptr)
*endptr=(char*) (*endptr-buf+nptr);
*endptr= b;
res= my_strtod(buf, endptr, err);
*endptr= nptr + (uint) (*endptr- buf);
return res;
}