merging (25758b41) · Commits · Software / OSDI20 Artifacts / mariadb

mysql-test/r/type_newdecimal.result

+410 −0

Original line number	Diff line number	Diff line
		@@ -1020,6 +1020,416 @@ cast(@non_existing_user_var/2 as DECIMAL)
		NULL
		create table t (d decimal(0,10));
		ERROR 42000: For float(M,D), double(M,D) or decimal(M,D), M must be >= D (column 'd').
		CREATE TABLE t1 (
		my_float FLOAT,
		my_double DOUBLE,
		my_varchar VARCHAR(50),
		my_decimal DECIMAL(65,30)
		);
		SHOW CREATE TABLE t1;
		Table Create Table
		t1 CREATE TABLE `t1` (
		`my_float` float default NULL,
		`my_double` double default NULL,
		`my_varchar` varchar(50) default NULL,
		`my_decimal` decimal(65,30) default NULL
		) ENGINE=MyISAM DEFAULT CHARSET=latin1
		INSERT INTO t1 SET my_float = 1.175494345e-32,
		my_double = 1.175494345e-32,
		my_varchar = '1.175494345e-32';
		INSERT INTO t1 SET my_float = 1.175494345e-31,
		my_double = 1.175494345e-31,
		my_varchar = '1.175494345e-31';
		INSERT INTO t1 SET my_float = 1.175494345e-30,
		my_double = 1.175494345e-30,
		my_varchar = '1.175494345e-30';
		INSERT INTO t1 SET my_float = 1.175494345e-29,
		my_double = 1.175494345e-29,
		my_varchar = '1.175494345e-29';
		INSERT INTO t1 SET my_float = 1.175494345e-28,
		my_double = 1.175494345e-28,
		my_varchar = '1.175494345e-28';
		INSERT INTO t1 SET my_float = 1.175494345e-27,
		my_double = 1.175494345e-27,
		my_varchar = '1.175494345e-27';
		INSERT INTO t1 SET my_float = 1.175494345e-26,
		my_double = 1.175494345e-26,
		my_varchar = '1.175494345e-26';
		INSERT INTO t1 SET my_float = 1.175494345e-25,
		my_double = 1.175494345e-25,
		my_varchar = '1.175494345e-25';
		INSERT INTO t1 SET my_float = 1.175494345e-24,
		my_double = 1.175494345e-24,
		my_varchar = '1.175494345e-24';
		INSERT INTO t1 SET my_float = 1.175494345e-23,
		my_double = 1.175494345e-23,
		my_varchar = '1.175494345e-23';
		INSERT INTO t1 SET my_float = 1.175494345e-22,
		my_double = 1.175494345e-22,
		my_varchar = '1.175494345e-22';
		INSERT INTO t1 SET my_float = 1.175494345e-21,
		my_double = 1.175494345e-21,
		my_varchar = '1.175494345e-21';
		INSERT INTO t1 SET my_float = 1.175494345e-20,
		my_double = 1.175494345e-20,
		my_varchar = '1.175494345e-20';
		INSERT INTO t1 SET my_float = 1.175494345e-19,
		my_double = 1.175494345e-19,
		my_varchar = '1.175494345e-19';
		INSERT INTO t1 SET my_float = 1.175494345e-18,
		my_double = 1.175494345e-18,
		my_varchar = '1.175494345e-18';
		INSERT INTO t1 SET my_float = 1.175494345e-17,
		my_double = 1.175494345e-17,
		my_varchar = '1.175494345e-17';
		INSERT INTO t1 SET my_float = 1.175494345e-16,
		my_double = 1.175494345e-16,
		my_varchar = '1.175494345e-16';
		INSERT INTO t1 SET my_float = 1.175494345e-15,
		my_double = 1.175494345e-15,
		my_varchar = '1.175494345e-15';
		INSERT INTO t1 SET my_float = 1.175494345e-14,
		my_double = 1.175494345e-14,
		my_varchar = '1.175494345e-14';
		INSERT INTO t1 SET my_float = 1.175494345e-13,
		my_double = 1.175494345e-13,
		my_varchar = '1.175494345e-13';
		INSERT INTO t1 SET my_float = 1.175494345e-12,
		my_double = 1.175494345e-12,
		my_varchar = '1.175494345e-12';
		INSERT INTO t1 SET my_float = 1.175494345e-11,
		my_double = 1.175494345e-11,
		my_varchar = '1.175494345e-11';
		INSERT INTO t1 SET my_float = 1.175494345e-10,
		my_double = 1.175494345e-10,
		my_varchar = '1.175494345e-10';
		INSERT INTO t1 SET my_float = 1.175494345e-9,
		my_double = 1.175494345e-9,
		my_varchar = '1.175494345e-9';
		INSERT INTO t1 SET my_float = 1.175494345e-8,
		my_double = 1.175494345e-8,
		my_varchar = '1.175494345e-8';
		INSERT INTO t1 SET my_float = 1.175494345e-7,
		my_double = 1.175494345e-7,
		my_varchar = '1.175494345e-7';
		INSERT INTO t1 SET my_float = 1.175494345e-6,
		my_double = 1.175494345e-6,
		my_varchar = '1.175494345e-6';
		INSERT INTO t1 SET my_float = 1.175494345e-5,
		my_double = 1.175494345e-5,
		my_varchar = '1.175494345e-5';
		INSERT INTO t1 SET my_float = 1.175494345e-4,
		my_double = 1.175494345e-4,
		my_varchar = '1.175494345e-4';
		INSERT INTO t1 SET my_float = 1.175494345e-3,
		my_double = 1.175494345e-3,
		my_varchar = '1.175494345e-3';
		INSERT INTO t1 SET my_float = 1.175494345e-2,
		my_double = 1.175494345e-2,
		my_varchar = '1.175494345e-2';
		INSERT INTO t1 SET my_float = 1.175494345e-1,
		my_double = 1.175494345e-1,
		my_varchar = '1.175494345e-1';
		SELECT my_float, my_double, my_varchar FROM t1;
		my_float my_double my_varchar
		1.17549e-32 1.175494345e-32 1.175494345e-32
		1.17549e-31 1.175494345e-31 1.175494345e-31
		1.17549e-30 1.175494345e-30 1.175494345e-30
		1.17549e-29 1.175494345e-29 1.175494345e-29
		1.17549e-28 1.175494345e-28 1.175494345e-28
		1.17549e-27 1.175494345e-27 1.175494345e-27
		1.17549e-26 1.175494345e-26 1.175494345e-26
		1.17549e-25 1.175494345e-25 1.175494345e-25
		1.17549e-24 1.175494345e-24 1.175494345e-24
		1.17549e-23 1.175494345e-23 1.175494345e-23
		1.17549e-22 1.175494345e-22 1.175494345e-22
		1.17549e-21 1.175494345e-21 1.175494345e-21
		1.17549e-20 1.175494345e-20 1.175494345e-20
		1.17549e-19 1.175494345e-19 1.175494345e-19
		1.17549e-18 1.175494345e-18 1.175494345e-18
		1.17549e-17 1.175494345e-17 1.175494345e-17
		1.17549e-16 1.175494345e-16 1.175494345e-16
		1.17549e-15 1.175494345e-15 1.175494345e-15
		1.17549e-14 1.175494345e-14 1.175494345e-14
		1.17549e-13 1.175494345e-13 1.175494345e-13
		1.17549e-12 1.175494345e-12 1.175494345e-12
		1.17549e-11 1.175494345e-11 1.175494345e-11
		1.17549e-10 1.175494345e-10 1.175494345e-10
		1.17549e-09 1.175494345e-09 1.175494345e-9
		1.17549e-08 1.175494345e-08 1.175494345e-8
		1.17549e-07 1.175494345e-07 1.175494345e-7
		1.17549e-06 1.175494345e-06 1.175494345e-6
		1.17549e-05 1.175494345e-05 1.175494345e-5
		0.000117549 0.0001175494345 1.175494345e-4
		0.00117549 0.001175494345 1.175494345e-3
		0.0117549 0.01175494345 1.175494345e-2
		0.117549 0.1175494345 1.175494345e-1
		SELECT CAST(my_float AS DECIMAL(65,30)), my_float FROM t1;
		CAST(my_float AS DECIMAL(65,30)) my_float
		0.000000000000000000000000000000 1.17549e-32
		0.000000000000000000000000000000 1.17549e-31
		0.000000000000000000000000000001 1.17549e-30
		0.000000000000000000000000000012 1.17549e-29
		0.000000000000000000000000000118 1.17549e-28
		0.000000000000000000000000001175 1.17549e-27
		0.000000000000000000000000011755 1.17549e-26
		0.000000000000000000000000117549 1.17549e-25
		0.000000000000000000000001175494 1.17549e-24
		0.000000000000000000000011754943 1.17549e-23
		0.000000000000000000000117549438 1.17549e-22
		0.000000000000000000001175494332 1.17549e-21
		0.000000000000000000011754943324 1.17549e-20
		0.000000000000000000117549434853 1.17549e-19
		0.000000000000000001175494374380 1.17549e-18
		0.000000000000000011754943743802 1.17549e-17
		0.000000000000000117549432474939 1.17549e-16
		0.000000000000001175494324749389 1.17549e-15
		0.000000000000011754943671010360 1.17549e-14
		0.000000000000117549429933840000 1.17549e-13
		0.000000000001175494380653563000 1.17549e-12
		0.000000000011754943372854760000 1.17549e-11
		0.000000000117549428524377200000 1.17549e-10
		0.000000001175494368510499000000 1.17549e-09
		0.000000011754943685104990000000 1.17549e-08
		0.000000117549433298336200000000 1.17549e-07
		0.000001175494389826781000000000 1.17549e-06
		0.000011754943443520460000000000 1.17549e-05
		0.000117549432616215200000000000 0.000117549
		0.001175494398921728000000000000 0.00117549
		0.011754943057894710000000000000 0.0117549
		0.117549434304237400000000000000 0.117549
		SELECT CAST(my_double AS DECIMAL(65,30)), my_double FROM t1;
		CAST(my_double AS DECIMAL(65,30)) my_double
		0.000000000000000000000000000000 1.175494345e-32
		0.000000000000000000000000000000 1.175494345e-31
		0.000000000000000000000000000001 1.175494345e-30
		0.000000000000000000000000000012 1.175494345e-29
		0.000000000000000000000000000118 1.175494345e-28
		0.000000000000000000000000001175 1.175494345e-27
		0.000000000000000000000000011755 1.175494345e-26
		0.000000000000000000000000117549 1.175494345e-25
		0.000000000000000000000001175494 1.175494345e-24
		0.000000000000000000000011754943 1.175494345e-23
		0.000000000000000000000117549435 1.175494345e-22
		0.000000000000000000001175494345 1.175494345e-21
		0.000000000000000000011754943450 1.175494345e-20
		0.000000000000000000117549434500 1.175494345e-19
		0.000000000000000001175494345000 1.175494345e-18
		0.000000000000000011754943450000 1.175494345e-17
		0.000000000000000117549434500000 1.175494345e-16
		0.000000000000001175494345000000 1.175494345e-15
		0.000000000000011754943450000000 1.175494345e-14
		0.000000000000117549434500000000 1.175494345e-13
		0.000000000001175494345000000000 1.175494345e-12
		0.000000000011754943450000000000 1.175494345e-11
		0.000000000117549434500000000000 1.175494345e-10
		0.000000001175494345000000000000 1.175494345e-09
		0.000000011754943450000000000000 1.175494345e-08
		0.000000117549434500000000000000 1.175494345e-07
		0.000001175494345000000000000000 1.175494345e-06
		0.000011754943450000000000000000 1.175494345e-05
		0.000117549434500000000000000000 0.0001175494345
		0.001175494345000000000000000000 0.001175494345
		0.011754943450000000000000000000 0.01175494345
		0.117549434500000000000000000000 0.1175494345
		SELECT CAST(my_varchar AS DECIMAL(65,30)), my_varchar FROM t1;
		CAST(my_varchar AS DECIMAL(65,30)) my_varchar
		0.000000000000000000000000000000 1.175494345e-32
		0.000000000000000000000000000000 1.175494345e-31
		0.000000000000000000000000000001 1.175494345e-30
		0.000000000000000000000000000012 1.175494345e-29
		0.000000000000000000000000000118 1.175494345e-28
		0.000000000000000000000000001175 1.175494345e-27
		0.000000000000000000000000011755 1.175494345e-26
		0.000000000000000000000000117549 1.175494345e-25
		0.000000000000000000000001175494 1.175494345e-24
		0.000000000000000000000011754943 1.175494345e-23
		0.000000000000000000000117549435 1.175494345e-22
		0.000000000000000000001175494345 1.175494345e-21
		0.000000000000000000011754943450 1.175494345e-20
		0.000000000000000000117549434500 1.175494345e-19
		0.000000000000000001175494345000 1.175494345e-18
		0.000000000000000011754943450000 1.175494345e-17
		0.000000000000000117549434500000 1.175494345e-16
		0.000000000000001175494345000000 1.175494345e-15
		0.000000000000011754943450000000 1.175494345e-14
		0.000000000000117549434500000000 1.175494345e-13
		0.000000000001175494345000000000 1.175494345e-12
		0.000000000011754943450000000000 1.175494345e-11
		0.000000000117549434500000000000 1.175494345e-10
		0.000000001175494345000000000000 1.175494345e-9
		0.000000011754943450000000000000 1.175494345e-8
		0.000000117549434500000000000000 1.175494345e-7
		0.000001175494345000000000000000 1.175494345e-6
		0.000011754943450000000000000000 1.175494345e-5
		0.000117549434500000000000000000 1.175494345e-4
		0.001175494345000000000000000000 1.175494345e-3
		0.011754943450000000000000000000 1.175494345e-2
		0.117549434500000000000000000000 1.175494345e-1
		UPDATE t1 SET my_decimal = my_float;
		Warnings:
		Note 1265 Data truncated for column 'my_decimal' at row 1
		Note 1265 Data truncated for column 'my_decimal' at row 2
		Note 1265 Data truncated for column 'my_decimal' at row 3
		Note 1265 Data truncated for column 'my_decimal' at row 4
		Note 1265 Data truncated for column 'my_decimal' at row 5
		Note 1265 Data truncated for column 'my_decimal' at row 6
		Note 1265 Data truncated for column 'my_decimal' at row 7
		Note 1265 Data truncated for column 'my_decimal' at row 8
		Note 1265 Data truncated for column 'my_decimal' at row 9
		Note 1265 Data truncated for column 'my_decimal' at row 10
		Note 1265 Data truncated for column 'my_decimal' at row 11
		Note 1265 Data truncated for column 'my_decimal' at row 12
		Note 1265 Data truncated for column 'my_decimal' at row 13
		Note 1265 Data truncated for column 'my_decimal' at row 14
		Note 1265 Data truncated for column 'my_decimal' at row 15
		Note 1265 Data truncated for column 'my_decimal' at row 16
		Note 1265 Data truncated for column 'my_decimal' at row 17
		Note 1265 Data truncated for column 'my_decimal' at row 19
		Note 1265 Data truncated for column 'my_decimal' at row 20
		Note 1265 Data truncated for column 'my_decimal' at row 21
		Note 1265 Data truncated for column 'my_decimal' at row 22
		Note 1265 Data truncated for column 'my_decimal' at row 23
		Note 1265 Data truncated for column 'my_decimal' at row 26
		Note 1265 Data truncated for column 'my_decimal' at row 27
		Note 1265 Data truncated for column 'my_decimal' at row 30
		Note 1265 Data truncated for column 'my_decimal' at row 31
		Note 1265 Data truncated for column 'my_decimal' at row 32
		SELECT my_decimal, my_float FROM t1;
		my_decimal my_float
		0.000000000000000000000000000000 1.17549e-32
		0.000000000000000000000000000000 1.17549e-31
		0.000000000000000000000000000001 1.17549e-30
		0.000000000000000000000000000012 1.17549e-29
		0.000000000000000000000000000118 1.17549e-28
		0.000000000000000000000000001175 1.17549e-27
		0.000000000000000000000000011755 1.17549e-26
		0.000000000000000000000000117549 1.17549e-25
		0.000000000000000000000001175494 1.17549e-24
		0.000000000000000000000011754943 1.17549e-23
		0.000000000000000000000117549438 1.17549e-22
		0.000000000000000000001175494332 1.17549e-21
		0.000000000000000000011754943324 1.17549e-20
		0.000000000000000000117549434853 1.17549e-19
		0.000000000000000001175494374380 1.17549e-18
		0.000000000000000011754943743802 1.17549e-17
		0.000000000000000117549432474939 1.17549e-16
		0.000000000000001175494324749389 1.17549e-15
		0.000000000000011754943671010360 1.17549e-14
		0.000000000000117549429933840000 1.17549e-13
		0.000000000001175494380653563000 1.17549e-12
		0.000000000011754943372854760000 1.17549e-11
		0.000000000117549428524377200000 1.17549e-10
		0.000000001175494368510499000000 1.17549e-09
		0.000000011754943685104990000000 1.17549e-08
		0.000000117549433298336200000000 1.17549e-07
		0.000001175494389826781000000000 1.17549e-06
		0.000011754943443520460000000000 1.17549e-05
		0.000117549432616215200000000000 0.000117549
		0.001175494398921728000000000000 0.00117549
		0.011754943057894710000000000000 0.0117549
		0.117549434304237400000000000000 0.117549
		UPDATE t1 SET my_decimal = my_double;
		Warnings:
		Note 1265 Data truncated for column 'my_decimal' at row 1
		Note 1265 Data truncated for column 'my_decimal' at row 2
		Note 1265 Data truncated for column 'my_decimal' at row 3
		Note 1265 Data truncated for column 'my_decimal' at row 4
		Note 1265 Data truncated for column 'my_decimal' at row 5
		Note 1265 Data truncated for column 'my_decimal' at row 6
		Note 1265 Data truncated for column 'my_decimal' at row 7
		Note 1265 Data truncated for column 'my_decimal' at row 8
		Note 1265 Data truncated for column 'my_decimal' at row 9
		Note 1265 Data truncated for column 'my_decimal' at row 10
		Note 1265 Data truncated for column 'my_decimal' at row 11
		Note 1265 Data truncated for column 'my_decimal' at row 13
		Note 1265 Data truncated for column 'my_decimal' at row 14
		Note 1265 Data truncated for column 'my_decimal' at row 16
		Note 1265 Data truncated for column 'my_decimal' at row 18
		Note 1265 Data truncated for column 'my_decimal' at row 20
		Note 1265 Data truncated for column 'my_decimal' at row 31
		SELECT my_decimal, my_double FROM t1;
		my_decimal my_double
		0.000000000000000000000000000000 1.175494345e-32
		0.000000000000000000000000000000 1.175494345e-31
		0.000000000000000000000000000001 1.175494345e-30
		0.000000000000000000000000000012 1.175494345e-29
		0.000000000000000000000000000118 1.175494345e-28
		0.000000000000000000000000001175 1.175494345e-27
		0.000000000000000000000000011755 1.175494345e-26
		0.000000000000000000000000117549 1.175494345e-25
		0.000000000000000000000001175494 1.175494345e-24
		0.000000000000000000000011754943 1.175494345e-23
		0.000000000000000000000117549435 1.175494345e-22
		0.000000000000000000001175494345 1.175494345e-21
		0.000000000000000000011754943450 1.175494345e-20
		0.000000000000000000117549434500 1.175494345e-19
		0.000000000000000001175494345000 1.175494345e-18
		0.000000000000000011754943450000 1.175494345e-17
		0.000000000000000117549434500000 1.175494345e-16
		0.000000000000001175494345000000 1.175494345e-15
		0.000000000000011754943450000000 1.175494345e-14
		0.000000000000117549434500000000 1.175494345e-13
		0.000000000001175494345000000000 1.175494345e-12
		0.000000000011754943450000000000 1.175494345e-11
		0.000000000117549434500000000000 1.175494345e-10
		0.000000001175494345000000000000 1.175494345e-09
		0.000000011754943450000000000000 1.175494345e-08
		0.000000117549434500000000000000 1.175494345e-07
		0.000001175494345000000000000000 1.175494345e-06
		0.000011754943450000000000000000 1.175494345e-05
		0.000117549434500000000000000000 0.0001175494345
		0.001175494345000000000000000000 0.001175494345
		0.011754943450000000000000000000 0.01175494345
		0.117549434500000000000000000000 0.1175494345
		UPDATE t1 SET my_decimal = my_varchar;
		Warnings:
		Note 1265 Data truncated for column 'my_decimal' at row 1
		Note 1265 Data truncated for column 'my_decimal' at row 2
		Note 1265 Data truncated for column 'my_decimal' at row 3
		Note 1265 Data truncated for column 'my_decimal' at row 4
		Note 1265 Data truncated for column 'my_decimal' at row 5
		Note 1265 Data truncated for column 'my_decimal' at row 6
		Note 1265 Data truncated for column 'my_decimal' at row 7
		Note 1265 Data truncated for column 'my_decimal' at row 8
		Note 1265 Data truncated for column 'my_decimal' at row 9
		Note 1265 Data truncated for column 'my_decimal' at row 10
		Note 1265 Data truncated for column 'my_decimal' at row 11
		SELECT my_decimal, my_varchar FROM t1;
		my_decimal my_varchar
		0.000000000000000000000000000000 1.175494345e-32
		0.000000000000000000000000000000 1.175494345e-31
		0.000000000000000000000000000001 1.175494345e-30
		0.000000000000000000000000000012 1.175494345e-29
		0.000000000000000000000000000118 1.175494345e-28
		0.000000000000000000000000001175 1.175494345e-27
		0.000000000000000000000000011755 1.175494345e-26
		0.000000000000000000000000117549 1.175494345e-25
		0.000000000000000000000001175494 1.175494345e-24
		0.000000000000000000000011754943 1.175494345e-23
		0.000000000000000000000117549435 1.175494345e-22
		0.000000000000000000001175494345 1.175494345e-21
		0.000000000000000000011754943450 1.175494345e-20
		0.000000000000000000117549434500 1.175494345e-19
		0.000000000000000001175494345000 1.175494345e-18
		0.000000000000000011754943450000 1.175494345e-17
		0.000000000000000117549434500000 1.175494345e-16
		0.000000000000001175494345000000 1.175494345e-15
		0.000000000000011754943450000000 1.175494345e-14
		0.000000000000117549434500000000 1.175494345e-13
		0.000000000001175494345000000000 1.175494345e-12
		0.000000000011754943450000000000 1.175494345e-11
		0.000000000117549434500000000000 1.175494345e-10
		0.000000001175494345000000000000 1.175494345e-9
		0.000000011754943450000000000000 1.175494345e-8
		0.000000117549434500000000000000 1.175494345e-7
		0.000001175494345000000000000000 1.175494345e-6
		0.000011754943450000000000000000 1.175494345e-5
		0.000117549434500000000000000000 1.175494345e-4
		0.001175494345000000000000000000 1.175494345e-3
		0.011754943450000000000000000000 1.175494345e-2
		0.117549434500000000000000000000 1.175494345e-1
		DROP TABLE t1;
		create table t1 (c1 decimal(64));
		insert into t1 values(
		89000000000000000000000000000000000000000000000000000000000000000000000000000000000000000);

mysql-test/t/type_newdecimal.test

+35 −0

Original line number	Diff line number	Diff line
		@@ -1051,6 +1051,41 @@ select cast(@non_existing_user_var/2 as DECIMAL);
		--error 1427
		create table t (d decimal(0,10));

		#
		# Bug #14268 (bad FLOAT->DECIMAL conversion)
		#

		CREATE TABLE t1 (
		my_float FLOAT,
		my_double DOUBLE,
		my_varchar VARCHAR(50),
		my_decimal DECIMAL(65,30)
		);
		SHOW CREATE TABLE t1;

		let $max_power= 32;
		while ($max_power)
		{
		eval INSERT INTO t1 SET my_float = 1.175494345e-$max_power,
		my_double = 1.175494345e-$max_power,
		my_varchar = '1.175494345e-$max_power';
		dec $max_power;
		}
		SELECT my_float, my_double, my_varchar FROM t1;

		SELECT CAST(my_float AS DECIMAL(65,30)), my_float FROM t1;
		SELECT CAST(my_double AS DECIMAL(65,30)), my_double FROM t1;
		SELECT CAST(my_varchar AS DECIMAL(65,30)), my_varchar FROM t1;

		UPDATE t1 SET my_decimal = my_float;
		SELECT my_decimal, my_float FROM t1;
		UPDATE t1 SET my_decimal = my_double;
		SELECT my_decimal, my_double FROM t1;
		UPDATE t1 SET my_decimal = my_varchar;
		SELECT my_decimal, my_varchar FROM t1;

		DROP TABLE t1;

		#
		# Bug #13573 (Wrong data inserted for too big values)
		#

strings/decimal.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -973,7 +973,7 @@ int double2decimal(double from, decimal_t *to)
		{
		/* TODO: fix it, when we'll have dtoa */
		char s[400], *end;
		sprintf(s, "%f", from);
		sprintf(s, "%.16G", from);
		end= strend(s);
		return string2decimal(s, to, &end);
		}