| /* PR middle-end/78622 - [7 Regression] -Wformat-overflow/-fprintf-return-value |
| incorrect with overflow/wrapping |
| { dg-skip-if "Requires %hhd format" { hppa*-*-hpux* } } |
| { dg-require-effective-target c99_runtime } |
| { dg-additional-options "-Wformat-overflow=2" } */ |
| |
| __attribute__((noinline, noclone)) int |
| foo (int x) |
| { |
| if (x < 4096 + 8 || x >= 4096 + 256 + 8) |
| return -1; |
| |
| char buf[5]; |
| int n = __builtin_snprintf (buf, sizeof buf, "%hhd", x + 1); |
| __builtin_printf ("\"%hhd\" => %i\n", x + 1, n); |
| return n; |
| } |
| |
| int |
| main (void) |
| { |
| if (__SCHAR_MAX__ != 127 || __CHAR_BIT__ != 8 || __SIZEOF_INT__ != 4) |
| return 0; |
| |
| if (foo (4095 + 9) != 1 |
| || foo (4095 + 32) != 2 |
| || foo (4095 + 127) != 3 |
| || foo (4095 + 128) != 4 |
| || foo (4095 + 240) != 3 |
| || foo (4095 + 248) != 2 |
| || foo (4095 + 255) != 2 |
| || foo (4095 + 256) != 1) |
| __builtin_abort (); |
| |
| return 0; |
| } |
