1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
/* PR middle-end/78786 - GCC hangs/out of memory calling sprintf with large
precision
{ dg-do compile }
{ dg-require-effective-target int32plus }
{ dg-options "-Wformat-length -ftrack-macro-expansion=0" } */
#define INT_MAX __INT_MAX__
#define INT_MIN (-INT_MAX - 1)
typedef __SIZE_TYPE__ size_t;
void sink (int, void*);
char buf [1];
#define T(n, fmt, ...) \
sink (__builtin_sprintf (buf + sizeof buf - n, fmt, __VA_ARGS__), buf)
void test_integer_cst (void)
{
T (0, "%*d", INT_MIN, 0); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*d", INT_MAX, 0); /* { dg-warning "writing 2147483647 bytes" } */
T (0, "%.*d", INT_MIN, 0); /* { dg-warning "writing 1 byte" } */
T (0, "%.*d", INT_MAX, 0); /* { dg-warning "writing 2147483647 bytes" } */
T (0, "%*.*d", INT_MIN, INT_MIN, 0); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*.*d", INT_MAX, INT_MAX, 0); /* { dg-warning "writing 2147483647 bytes" } */
}
void test_integer_var (int i)
{
T (0, "%*d", INT_MIN, i); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*d", INT_MAX, i); /* { dg-warning "writing 2147483647 bytes" } */
T (0, "%.*d", INT_MIN, i); /* { dg-warning "writing between 1 and 11 bytes" } */
/* The following writes INT_MAX digits and, when i is negative, a minus
sign. */
T (0, "%.*d", INT_MAX, i); /* { dg-warning "writing between 2147483647 and 2147483648 bytes" } */
T (0, "%*.*d", INT_MIN, INT_MIN, i); /* { dg-warning "writing 2147483648 bytes" } */
/* The following writes INT_MAX digits and, when i is negative, a minus
sign. */
T (0, "%*.*d", INT_MAX, INT_MAX, i); /* { dg-warning "writing between 2147483647 and 2147483648 bytes" } */
}
void test_floating_a_cst (void)
{
T (0, "%*a", INT_MIN, 0.); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*a", INT_MAX, 0.); /* { dg-warning "writing 2147483647 bytes" } */
T (0, "%.*a", INT_MIN, 0.); /* { dg-warning "writing 6 bytes" } */
T (0, "%.*a", INT_MAX, 0.); /* { dg-warning "writing 2147483654 bytes" } */
T (0, "%*.*a", INT_MIN, INT_MIN, 0.); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*.*a", INT_MAX, INT_MAX, 0.); /* { dg-warning "writing 2147483654 bytes" } */
}
void test_floating_a_var (double x)
{
T (0, "%*a", INT_MIN, x); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*a", INT_MAX, x); /* { dg-warning "writing 2147483647 bytes" } */
T (0, "%.*a", INT_MIN, x); /* { dg-warning "writing between 6 and 24 bytes" } */
/* Expected output is "0x0." followed by INT_MAX digits followed by
"p+" followed by 1 to four digits, with a byte count in the range
[3 + INT_MAX + 2 + 1, 3 + INT_MAX + 2 + 4]. */
T (0, "%.*a", INT_MAX, x); /* { dg-warning "writing between 2147483654 and 2147483658 bytes" } */
T (0, "%*.*a", INT_MIN, INT_MIN, x); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*.*a", INT_MAX, INT_MAX, x); /* { dg-warning "writing between 2147483654 and 2147483658 bytes" } */
}
void test_floating_e_cst (void)
{
T (0, "%*e", INT_MIN, 0.); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*e", INT_MAX, 0.); /* { dg-warning "writing 2147483647 bytes" } */
T (0, "%.*e", INT_MIN, 0.); /* { dg-warning "writing 12 bytes" } */
T (0, "%.*e", INT_MAX, 0.); /* { dg-warning "writing 2147483653 bytes" } */
T (0, "%*.*e", INT_MIN, INT_MIN, 0.); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*.*e", INT_MAX, INT_MAX, 0.); /* { dg-warning "writing 2147483653 bytes" } */
}
void test_floating_e_var (double x)
{
T (0, "%*e", INT_MIN, x); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*e", INT_MAX, x); /* { dg-warning "writing 2147483647 bytes" } */
T (0, "%.*e", INT_MIN, x); /* { dg-warning "writing between 12 and 14 bytes" } */
T (0, "%.*e", INT_MAX, x); /* { dg-warning "writing between 2147483653 and 2147483655 bytes" } */
T (0, "%*.*e", INT_MIN, INT_MIN, x); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*.*e", INT_MAX, INT_MAX, x); /* { dg-warning "writing between 2147483653 and 2147483655 bytes" } */
}
void test_floating_f_cst (void)
{
T (0, "%*f", INT_MIN, 0.); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*f", INT_MAX, 0.); /* { dg-warning "writing 2147483647 bytes" } */
T (0, "%.*f", INT_MIN, 0.); /* { dg-warning "writing 8 byte" } */
T (0, "%.*f", INT_MAX, 0.); /* { dg-warning "writing 2147483649 bytes" } */
T (0, "%*.*f", INT_MIN, INT_MIN, 0.); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*.*f", INT_MAX, INT_MAX, 0.); /* { dg-warning "writing 2147483649 bytes" } */
}
void test_floating_f_var (double x)
{
T (0, "%*f", INT_MIN, x); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*f", INT_MAX, x); /* { dg-warning "writing 2147483647 bytes" } */
T (0, "%.*f", INT_MIN, x); /* { dg-warning "writing between 8 and 317 bytes" } */
T (0, "%.*f", INT_MAX, x); /* { dg-warning "writing between 2147483649 and 2147483958 bytes" } */
T (0, "%*.*f", INT_MIN, INT_MIN, x); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*.*f", INT_MAX, INT_MAX, x); /* { dg-warning "writing between 2147483649 and 2147483958 bytes" } */
}
void test_floating_g_cst (void)
{
T (0, "%*g", INT_MIN, 0.); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*g", INT_MAX, 0.); /* { dg-warning "writing 2147483647 bytes" } */
T (0, "%.*g", INT_MIN, 0.); /* { dg-warning "writing 1 byte" } */
T (0, "%.*g", INT_MAX, 0.); /* { dg-warning "writing 1 byte" } */
T (0, "%*.*g", INT_MIN, INT_MIN, 0.); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*.*g", INT_MAX, INT_MAX, 0.); /* { dg-warning "writing 2147483647 bytes" } */
}
void test_floating_g (double x)
{
T (0, "%*g", INT_MIN, x); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*g", INT_MAX, x); /* { dg-warning "writing 2147483647 bytes" } */
T (0, "%.*g", INT_MIN, x); /* { dg-warning "writing between 1 and 13 bytes" } */
T (0, "%.*g", INT_MAX, x); /* { dg-warning "writing between 1 and 310 bytes" } */
T (0, "%*.*g", INT_MIN, INT_MIN, x); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*.*g", INT_MAX, INT_MAX, x); /* { dg-warning "writing 2147483647 bytes" } */
}
void test_string_cst (void)
{
T (0, "%*s", INT_MIN, ""); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*s", INT_MAX, ""); /* { dg-warning "writing 2147483647 bytes" } */
T (0, "%.*s", INT_MIN, ""); /* { dg-warning "writing a terminating nul" } */
T (0, "%.*s", INT_MAX, ""); /* { dg-warning "writing a terminating nul" } */
T (0, "%*.*s", INT_MIN, INT_MIN, ""); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*.*s", INT_MAX, INT_MAX, ""); /* { dg-warning "writing 2147483647 bytes" } */
}
void test_string_var (const char *s)
{
T (0, "%*s", INT_MIN, s); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*s", INT_MAX, s); /* { dg-warning "writing 2147483647 bytes" } */
T (0, "%.*s", INT_MIN, s); /* { dg-warning "writing a terminating nul" } */
T (0, "%.*s", INT_MAX, s); /* { dg-warning "writing between 0 and 2147483647 bytes" } */
T (0, "%*.*s", INT_MIN, INT_MIN, s); /* { dg-warning "writing 2147483648 bytes" } */
T (0, "%*.*s", INT_MAX, INT_MAX, s); /* { dg-warning "writing 2147483647 bytes" } */
}
|
