1 | /* Test for the long double variants of *scanf 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 <string.h> |
23 | #include <wchar.h> |
24 | |
25 | #include <support/check.h> |
26 | |
27 | #define CLEAR_VARGS \ |
28 | va_start (args, format); \ |
29 | ldptr = va_arg (args, long double *); \ |
30 | fptr = va_arg (args, float *); \ |
31 | *ldptr = 0; \ |
32 | *fptr = 0; \ |
33 | va_end (args); |
34 | |
35 | #define CHECK_VARGS \ |
36 | va_start (args, format); \ |
37 | ldptr = va_arg (args, long double *); \ |
38 | fptr = va_arg (args, float *); \ |
39 | va_end (args); \ |
40 | if (*ldptr == -1 && *fptr == -2 && ret == 2) \ |
41 | printf ("OK"); \ |
42 | else \ |
43 | printf ("ERROR (%Lf %f %d)", *ldptr, *fptr, ret); \ |
44 | printf ("\n"); |
45 | |
46 | #define CLEAR_VALUE \ |
47 | ld = 0; \ |
48 | f = 0; |
49 | |
50 | #define CHECK_VALUE \ |
51 | if (ld == -1 && f == -2 && ret == 2) \ |
52 | printf ("OK"); \ |
53 | else \ |
54 | printf ("ERROR (%Lf %f %d)", ld, f, ret); \ |
55 | printf ("\n"); |
56 | |
57 | static void |
58 | do_test_call (FILE *stream, CHAR *string, const CHAR *format, ...) |
59 | { |
60 | float f; |
61 | long double ld; |
62 | float *fptr; |
63 | long double *ldptr; |
64 | va_list args; |
65 | int ret; |
66 | |
67 | CLEAR_VALUE |
68 | printf (format: "fscanf: " ); |
69 | ret = FSCANF (stream: stream, format: format, &ld, &f); |
70 | CHECK_VALUE |
71 | |
72 | CLEAR_VALUE |
73 | printf (format: "scanf: " ); |
74 | ret = SCANF (format: format, &ld, &f); |
75 | CHECK_VALUE |
76 | |
77 | CLEAR_VALUE |
78 | printf (format: "sscanf: " ); |
79 | ret = SSCANF (s: string, format: format, &ld, &f); |
80 | CHECK_VALUE |
81 | |
82 | CLEAR_VARGS |
83 | printf (format: "vfscanf: " ); |
84 | va_start (args, format); |
85 | ret = VFSCANF (s: stream, format: format, arg: args); |
86 | va_end (args); |
87 | CHECK_VARGS |
88 | |
89 | CLEAR_VARGS |
90 | printf (format: "vscanf: " ); |
91 | va_start (args, format); |
92 | ret = VSCANF (format: format, arg: args); |
93 | va_end (args); |
94 | CHECK_VARGS |
95 | |
96 | CLEAR_VARGS |
97 | printf (format: "vsscanf: " ); |
98 | va_start (args, format); |
99 | ret = VSSCANF (s: string, format: format, arg: args); |
100 | va_end (args); |
101 | CHECK_VARGS |
102 | } |
103 | |
104 | static int |
105 | do_test (void) |
106 | { |
107 | CHAR string[256]; |
108 | float f; |
109 | long double ld; |
110 | |
111 | /* Scan in decimal notation. */ |
112 | STRCPY (dest: string, |
113 | L ("-1.0 -2.0\n" ) |
114 | L ("-1.0 -2.0\n" ) ); |
115 | do_test_call (stdin, string, L("%Lf %f" ), &ld, &f); |
116 | |
117 | /* Scan in hexadecimal notation. */ |
118 | STRCPY (dest: string, |
119 | L ("-0x1.0p+0 -0x2.0p+0\n" ) |
120 | L ("-0x1.0p+0 -0x2.0p+0\n" ) ); |
121 | /* For ISO C99, scan the single-precision value with "%as" to test |
122 | that __isoc99_*scanf ignores the 's'. For DEPRECATED_SCANF, do not |
123 | use "%as", because that would try to scan a string and allocate |
124 | space for it. */ |
125 | #if __GLIBC_USE (DEPRECATED_SCANF) |
126 | # define FMT "%La %a" |
127 | #else |
128 | # define FMT "%La %as" |
129 | #endif |
130 | do_test_call (stdin, string, L(FMT), &ld, &f); |
131 | |
132 | return 0; |
133 | } |
134 | |
135 | #include <support/test-driver.c> |
136 | |