File: overflow.c

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16.1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,388 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (25 lines) | stat: -rw-r--r-- 582 bytes parent folder | download | duplicates (40)
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
// RUN: %clang_cc1 -Eonly %s -verify -triple i686-pc-linux-gnu

// Multiply signed overflow
#if 0x7FFFFFFFFFFFFFFF*2 // expected-warning {{overflow}}
#endif

// Multiply unsigned overflow
#if 0xFFFFFFFFFFFFFFFF*2
#endif

// Add signed overflow
#if 0x7FFFFFFFFFFFFFFF+1 // expected-warning {{overflow}}
#endif

// Add unsigned overflow
#if 0xFFFFFFFFFFFFFFFF+1
#endif

// Subtract signed overflow
#if 0x7FFFFFFFFFFFFFFF- -1 // expected-warning {{overflow}}
#endif

// Subtract unsigned overflow
#if 0xFFFFFFFFFFFFFFFF- -1 // expected-warning {{converted from negative value}}
#endif