1 | /* Test for the long double variants of *printf functions. |
2 | Copyright (C) 2019-2024 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <stdarg.h> |
20 | #include <stdint.h> |
21 | #include <stdio.h> |
22 | #include <stdlib.h> |
23 | |
24 | #include <support/capture_subprocess.h> |
25 | #include <support/check.h> |
26 | |
27 | static void |
28 | do_test_call_varg (FILE *stream, const char *format, ...) |
29 | { |
30 | char *buffer = NULL; |
31 | char string[128]; |
32 | va_list args; |
33 | int ret; |
34 | |
35 | printf ("%15s" , "vasprintf: " ); |
36 | va_start (args, format); |
37 | ret = vasprintf (ptr: &buffer, fmt: format, ap: args); |
38 | va_end (args); |
39 | if (ret == -1 || buffer == NULL) |
40 | printf ("Error using vasprintf\n" ); |
41 | else |
42 | { |
43 | printf ("%s" , buffer); |
44 | free (ptr: buffer); |
45 | } |
46 | printf ("\n" ); |
47 | |
48 | printf ("%15s" , "vdprintf: " ); |
49 | va_start (args, format); |
50 | vdprintf (fd: fileno (stream: stream), fmt: format, ap: args); |
51 | va_end (args); |
52 | printf ("\n" ); |
53 | |
54 | printf ("%15s" , "vfprintf: " ); |
55 | va_start (args, format); |
56 | vfprintf (stream: stream, fmt: format, ap: args); |
57 | va_end (args); |
58 | printf ("\n" ); |
59 | |
60 | printf ("%15s" , "vprintf: " ); |
61 | va_start (args, format); |
62 | vprintf (fmt: format, ap: args); |
63 | va_end (args); |
64 | printf ("\n" ); |
65 | |
66 | printf ("%15s" , "vsnprintf: " ); |
67 | va_start (args, format); |
68 | vsnprintf (s: string, n: 127, fmt: format, ap: args); |
69 | va_end (args); |
70 | printf ("%s" , string); |
71 | printf ("\n" ); |
72 | |
73 | printf ("%15s" , "vsprintf: " ); |
74 | va_start (args, format); |
75 | vsprintf (s: string, fmt: format, ap: args); |
76 | va_end (args); |
77 | printf ("%s" , string); |
78 | printf ("\n" ); |
79 | } |
80 | |
81 | static void |
82 | do_test_call_rarg (FILE *stream, const char *format, long double ld, double d) |
83 | { |
84 | char *buffer = NULL; |
85 | char string[128]; |
86 | int ret; |
87 | |
88 | printf ("%15s" , "asprintf: " ); |
89 | ret = asprintf (&buffer, format, ld, d); |
90 | if (ret == -1 || buffer == NULL) |
91 | printf ("Error using asprintf\n" ); |
92 | else |
93 | { |
94 | printf ("%s" , buffer); |
95 | free (ptr: buffer); |
96 | } |
97 | printf ("\n" ); |
98 | |
99 | printf ("%15s" , "dprintf: " ); |
100 | dprintf (fileno (stream), format, ld, d); |
101 | printf ("\n" ); |
102 | |
103 | printf ("%15s" , "fprintf: " ); |
104 | fprintf (stream, format, ld, d); |
105 | printf ("\n" ); |
106 | |
107 | printf ("%15s" , "printf: " ); |
108 | printf (format, ld, d); |
109 | printf ("\n" ); |
110 | |
111 | printf ("%15s" , "snprintf: " ); |
112 | snprintf (string, 127, format, ld, d); |
113 | printf ("%s" , string); |
114 | printf ("\n" ); |
115 | |
116 | printf ("%15s" , "sprintf: " ); |
117 | sprintf (string, format, ld, d); |
118 | printf ("%s" , string); |
119 | printf ("\n" ); |
120 | } |
121 | |
122 | static void |
123 | do_test_call (void) |
124 | { |
125 | long double ld = -1; |
126 | double d = -1; |
127 | |
128 | /* Print in decimal notation. */ |
129 | do_test_call_rarg (stdout, format: "%.10Lf, %.10f" , ld, d); |
130 | do_test_call_varg (stdout, format: "%.10Lf, %.10f" , ld, d); |
131 | |
132 | /* Print in hexadecimal notation. */ |
133 | do_test_call_rarg (stdout, format: "%.10La, %.10a" , ld, d); |
134 | do_test_call_varg (stdout, format: "%.10La, %.10a" , ld, d); |
135 | |
136 | /* Test positional parameters. */ |
137 | do_test_call_varg (stdout, format: "%3$Lf, %2$Lf, %1$f" , |
138 | (double) 1, (long double) 2, (long double) 3); |
139 | } |
140 | |
141 | static int |
142 | do_test (void) |
143 | { |
144 | struct support_capture_subprocess result; |
145 | result = support_capture_subprocess (callback: (void *) &do_test_call, NULL); |
146 | |
147 | /* Compare against the expected output. */ |
148 | const char *expected = |
149 | " asprintf: -1.0000000000, -1.0000000000\n" |
150 | " dprintf: -1.0000000000, -1.0000000000\n" |
151 | " fprintf: -1.0000000000, -1.0000000000\n" |
152 | " printf: -1.0000000000, -1.0000000000\n" |
153 | " snprintf: -1.0000000000, -1.0000000000\n" |
154 | " sprintf: -1.0000000000, -1.0000000000\n" |
155 | " vasprintf: -1.0000000000, -1.0000000000\n" |
156 | " vdprintf: -1.0000000000, -1.0000000000\n" |
157 | " vfprintf: -1.0000000000, -1.0000000000\n" |
158 | " vprintf: -1.0000000000, -1.0000000000\n" |
159 | " vsnprintf: -1.0000000000, -1.0000000000\n" |
160 | " vsprintf: -1.0000000000, -1.0000000000\n" |
161 | " asprintf: -0x1.0000000000p+0, -0x1.0000000000p+0\n" |
162 | " dprintf: -0x1.0000000000p+0, -0x1.0000000000p+0\n" |
163 | " fprintf: -0x1.0000000000p+0, -0x1.0000000000p+0\n" |
164 | " printf: -0x1.0000000000p+0, -0x1.0000000000p+0\n" |
165 | " snprintf: -0x1.0000000000p+0, -0x1.0000000000p+0\n" |
166 | " sprintf: -0x1.0000000000p+0, -0x1.0000000000p+0\n" |
167 | " vasprintf: -0x1.0000000000p+0, -0x1.0000000000p+0\n" |
168 | " vdprintf: -0x1.0000000000p+0, -0x1.0000000000p+0\n" |
169 | " vfprintf: -0x1.0000000000p+0, -0x1.0000000000p+0\n" |
170 | " vprintf: -0x1.0000000000p+0, -0x1.0000000000p+0\n" |
171 | " vsnprintf: -0x1.0000000000p+0, -0x1.0000000000p+0\n" |
172 | " vsprintf: -0x1.0000000000p+0, -0x1.0000000000p+0\n" |
173 | " vasprintf: 3.000000, 2.000000, 1.000000\n" |
174 | " vdprintf: 3.000000, 2.000000, 1.000000\n" |
175 | " vfprintf: 3.000000, 2.000000, 1.000000\n" |
176 | " vprintf: 3.000000, 2.000000, 1.000000\n" |
177 | " vsnprintf: 3.000000, 2.000000, 1.000000\n" |
178 | " vsprintf: 3.000000, 2.000000, 1.000000\n" ; |
179 | TEST_COMPARE_STRING (expected, result.out.buffer); |
180 | |
181 | return 0; |
182 | } |
183 | |
184 | #include <support/test-driver.c> |
185 | |