1 /* Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
20 # define _GNU_SOURCE 1
38 typedef char * ((*efcvt_func
) (double, int, int *, int *));
40 typedef int ((*efcvt_r_func
) (double, int, int *, int *, char *, size_t));
43 static testcase ecvt_tests
[] =
48 { 10.0, 5, 2, "10000" },
49 { -12.0, 5, 2, "12000" },
50 { 0.2, 4, 0, "2000" },
51 { 0.02, 4, -1, "2000" },
54 { 0.01, 2, -1, "10" },
58 { 100.01, -4, 3, "" },
59 { 123.01, -4, 3, "" },
60 { 126.71, -4, 3, "" },
61 { 0.0, 4, 1, "0000" },
62 /* -1.0 is end marker. */
66 static testcase fcvt_tests
[] =
70 { 10.0, 1, 2, "100" },
71 { 10.0, 4, 2, "100000" },
72 { -12.0, 5, 2, "1200000" },
73 { 0.2, 4, 0, "2000" },
74 { 0.02, 4, -1, "200" },
78 { 100.0, -2, 3, "100" },
79 { 100.0, -5, 3, "100" },
80 { 100.0, -4, 3, "100" },
81 { 100.01, -4, 3, "100" },
82 { 123.01, -4, 3, "100" },
83 { 126.71, -4, 3, "100" },
84 { 322.5, 16, 3, "3225000000000000000" },
85 /* -1.0 is end marker. */
90 output_error (const char *name
, double value
, int ndigit
,
91 const char *exp_p
, int exp_decpt
, int exp_sign
,
92 char *res_p
, int res_decpt
, int res_sign
)
94 printf ("%s returned wrong result for value: %f, ndigits: %d\n",
96 printf ("Result was p: \"%s\", decpt: %d, sign: %d\n",
97 res_p
, res_decpt
, res_sign
);
98 printf ("Should be p: \"%s\", decpt: %d, sign: %d\n",
99 exp_p
, exp_decpt
, exp_sign
);
105 output_r_error (const char *name
, double value
, int ndigit
,
106 const char *exp_p
, int exp_decpt
, int exp_sign
, int exp_return
,
107 char *res_p
, int res_decpt
, int res_sign
, int res_return
)
109 printf ("%s returned wrong result for value: %f, ndigits: %d\n",
110 name
, value
, ndigit
);
111 printf ("Result was buf: \"%s\", decpt: %d, sign: %d return value: %d\n",
112 res_p
, res_decpt
, res_sign
, res_return
);
113 printf ("Should be buf: \"%s\", decpt: %d, sign: %d\n",
114 exp_p
, exp_decpt
, exp_sign
);
119 test (testcase tests
[], efcvt_func efcvt
, const char *name
)
125 while (tests
[no
].value
!= -1.0)
127 p
= efcvt (tests
[no
].value
, tests
[no
].ndigit
, &decpt
, &sign
);
128 if (decpt
!= tests
[no
].decpt
129 || sign
!= (tests
[no
].value
< 0)
130 || strcmp (p
, tests
[no
].result
) != 0)
131 output_error (name
, tests
[no
].value
, tests
[no
].ndigit
,
132 tests
[no
].result
, tests
[no
].decpt
,
133 (tests
[no
].value
< 0),
140 test_r (testcase tests
[], efcvt_r_func efcvt_r
, const char *name
)
143 int decpt
, sign
, res
;
147 while (tests
[no
].value
!= -1.0)
149 res
= efcvt_r (tests
[no
].value
, tests
[no
].ndigit
, &decpt
, &sign
,
152 || decpt
!= tests
[no
].decpt
153 || sign
!= (tests
[no
].value
< 0)
154 || strcmp (buf
, tests
[no
].result
) != 0)
155 output_r_error (name
, tests
[no
].value
, tests
[no
].ndigit
,
156 tests
[no
].result
, tests
[no
].decpt
, 0,
157 (tests
[no
].value
< 0),
158 buf
, decpt
, sign
, res
);
166 int decpt
, sign
, res
;
170 p
= ecvt (NAN
, 10, &decpt
, &sign
);
171 if (sign
!= 0 || strcmp (p
, "nan") != 0)
172 output_error ("ecvt", NAN
, 10, "nan", 0, 0, p
, decpt
, sign
);
174 p
= ecvt (INFINITY
, 10, &decpt
, &sign
);
175 if (sign
!= 0 || strcmp (p
, "inf") != 0)
176 output_error ("ecvt", NAN
, 10, "inf", 0, 0, p
, decpt
, sign
);
178 /* Simply make sure these calls with large NDIGITs don't crash. */
179 (void) ecvt (123.456, 10000, &decpt
, &sign
);
180 (void) fcvt (123.456, 10000, &decpt
, &sign
);
182 /* Some tests for for the reentrant functions. */
183 /* Use a too small buffer. */
184 res
= ecvt_r (123.456, 10, &decpt
, &sign
, buf
, 1);
187 printf ("ecvt_r with a too small buffer was succesful.\n");
190 res
= fcvt_r (123.456, 10, &decpt
, &sign
, buf
, 1);
193 printf ("fcvt_r with a too small buffer was succesful.\n");
202 test (ecvt_tests
, ecvt
, "ecvt");
203 test (fcvt_tests
, fcvt
, "fcvt");
204 test_r (ecvt_tests
, ecvt_r
, "ecvt_r");
205 test_r (fcvt_tests
, fcvt_r
, "fcvt_r");