Mercurial > hg > CbC > CbC_gcc
comparison gcc/testsuite/gcc.dg/tree-ssa/builtin-snprintf-warn-4.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
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111:04ced10e8804 | 131:84e7813d76e9 |
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1 /* PR c/83448 */ | |
2 /* { dg-do compile } */ | |
3 /* { dg-options "-O2 -Wformat-truncation -fdiagnostics-show-caret" } */ | |
4 | |
5 extern int snprintf (char *, __SIZE_TYPE__, const char *, ...); | |
6 | |
7 void | |
8 foo (char *a, char *b, char *c, int d, int e) | |
9 { | |
10 snprintf (a, 7, "abc\\\123 efg"); | |
11 /* { dg-warning "directive output truncated writing 9 bytes into a region of size 7" "" { target *-*-* } .-1 } | |
12 { dg-message ".snprintf. output 10 bytes into a destination of size 7" "note" { target *-*-* } .-2 } | |
13 { dg-begin-multiline-output "" } | |
14 snprintf (a, 7, "abc\\\123 efg"); | |
15 ~~~~~~~~~~~^~ | |
16 { dg-end-multiline-output "" } | |
17 { dg-begin-multiline-output "note" } | |
18 snprintf (a, 7, "abc\\\123 efg"); | |
19 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
20 { dg-end-multiline-output "" } */ | |
21 d &= 63; | |
22 d += 10; | |
23 snprintf (b, 7, "a%dbcdefg", d); | |
24 /* { dg-warning "'bcdefg' directive output truncated writing 6 bytes into a region of size 4" "" { target *-*-* } .-1 } | |
25 { dg-message ".snprintf. output 10 bytes into a destination of size 7" "note" { target *-*-* } .-2 } | |
26 { dg-begin-multiline-output "" } | |
27 snprintf (b, 7, "a%dbcdefg", d); | |
28 ~~~~^~ | |
29 { dg-end-multiline-output "" } | |
30 { dg-begin-multiline-output "note" } | |
31 snprintf (b, 7, "a%dbcdefg", d); | |
32 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
33 { dg-end-multiline-output "" } */ | |
34 e &= 127; | |
35 snprintf (c, 7, "a%dbcdefgh", e); | |
36 /* { dg-warning "'bcdefgh' directive output truncated writing 7 bytes into a region of size between 3 and 5" "" { target *-*-* } .-1 } | |
37 { dg-message ".snprintf. output between 10 and 12 bytes into a destination of size 7" "note" { target *-*-* } .-2 } | |
38 { dg-begin-multiline-output "" } | |
39 snprintf (c, 7, "a%dbcdefgh", e); | |
40 ~~~~~^~ | |
41 { dg-end-multiline-output "" } | |
42 { dg-begin-multiline-output "note" } | |
43 snprintf (c, 7, "a%dbcdefgh", e); | |
44 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
45 { dg-end-multiline-output "" } */ | |
46 } |