|
111
|
1 /* PR middle-end/78622 - [7 Regression] -Wformat-overflow/-fprintf-return-value
|
|
|
2 incorrect with overflow/wrapping
|
|
|
3 { dg-do compile }
|
|
|
4 { dg-options "-Wformat-overflow=2" }
|
|
|
5 The h and hh length modifiers are a C99 feature (see PR 78959).
|
|
|
6 { dg-require-effective-target c99_runtime } */
|
|
|
7
|
|
|
8 char buf[1];
|
|
|
9
|
|
|
10 int test_uchar_hhd (unsigned char x)
|
|
|
11 {
|
|
|
12 if (x < 64 || x > 2U * __SCHAR_MAX__ - 10)
|
|
|
13 return -1;
|
|
|
14
|
|
|
15 return __builtin_sprintf (buf, "%hhd", x + 1); /* { dg-warning "directive writing between 1 and 4 bytes into a region of size 1" "int32plus" { target { int32plus } } } */
|
|
|
16 }
|
|
|
17
|
|
|
18 int test_uint_hhd (unsigned x)
|
|
|
19 {
|
|
|
20 if (x < 64 || x > 2U * __INT_MAX__ - 10)
|
|
|
21 return -1;
|
|
|
22
|
|
|
23 return __builtin_sprintf (buf, "%hhd", x + 1); /* { dg-warning "directive writing between 1 and 4 bytes into a region of size 1" "int32plus" { target { int32plus } } } */
|
|
|
24 }
|
|
|
25
|
|
|
26 int test_schar_hhu (signed char x)
|
|
|
27 {
|
|
|
28 if (x < -9 || x > 9)
|
|
|
29 return -1;
|
|
|
30
|
|
|
31 return __builtin_sprintf (buf, "%hhu", x + 1); /* { dg-warning "directive writing between 1 and 3 bytes into a region of size 1" "int32plus" { target { int32plus } } } */
|
|
|
32 }
|
|
|
33
|
|
|
34 int test_ushort_hd (unsigned short x)
|
|
|
35 {
|
|
|
36 if (x < 64 || x > 2U * __SHRT_MAX__ - 10)
|
|
|
37 return -1;
|
|
|
38
|
|
|
39 return __builtin_sprintf (buf, "%hd", x + 1); /* { dg-warning "directive writing between 1 and 6 bytes into a region of size 1" "int32plus" { target { int32plus } } } */
|
|
|
40 }
|
|
|
41
|
|
|
42 int test_uint_d (unsigned x)
|
|
|
43 {
|
|
|
44 if (x < 64 || x > 2U * __INT_MAX__ - 10)
|
|
|
45 return -1;
|
|
|
46
|
|
|
47 return __builtin_sprintf (buf, "%d", x + 1); /* { dg-warning "directive writing between 1 and 11 bytes into a region of size 1" "int32plus" { target { int32plus } } } */
|
|
|
48 }
|
|
|
49
|
|
|
50 int test_ulong_ld (unsigned long x)
|
|
|
51 {
|
|
|
52 if (x < 64 || x > 2LU * __LONG_MAX__ - 10)
|
|
|
53 return -1;
|
|
|
54
|
|
|
55 return __builtin_sprintf (buf, "%ld", x + 1); /* { dg-warning "directive writing between 1 and 11 bytes into a region of size 1" "ilp32" { target { ilp32 } } } */
|
|
|
56 /* { dg-warning "directive writing between 1 and 20 bytes into a region of size 1" "lp64" { target { lp64 } } .-1 } */
|
|
|
57 }
|
|
|
58
|
|
|
59 int test_ullong_lld (unsigned long long x)
|
|
|
60 {
|
|
|
61 if (x < 64 || x > 2LLU * __LONG_LONG_MAX__ - 10)
|
|
|
62 return -1;
|
|
|
63
|
|
|
64 return __builtin_sprintf (buf, "%lld", x + 1); /* { dg-warning "directive writing between 1 and 20 bytes into a region of size 1" "int32plus" { target { int32plus } } } */
|
|
|
65 }
|
