not.cpp revision a5db79d5148d3972b90390f526fd35d707729c5a 
1//===- not.cpp - The 'not' testing tool -----------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "llvm/Support/Path.h"
11#include "llvm/Support/Program.h"
12#include "llvm/Support/raw_ostream.h"
13using namespace llvm;
14
15int main(int argc, const char **argv) {
16  bool ExpectCrash = false;
17
18  ++argv;
19  --argc;
20
21  if (argc > 0 && StringRef(argv[0]) == "--crash") {
22    ++argv;
23    --argc;
24    ExpectCrash = true;
25  }
26
27  if (argc == 0)
28    return 1;
29
30  std::string Program = sys::FindProgramByName(argv[0]);
31
32  std::string ErrMsg;
33  int Result = sys::ExecuteAndWait(Program, argv, 0, 0, 0, 0, &ErrMsg);
34  if (Result < 0) {
35    errs() << "Error: " << ErrMsg << "\n";
36    if (ExpectCrash)
37      return 0;
38    return 1;
39  }
40
41  if (ExpectCrash)
42    return 1;
43
44  return Result == 0;
45}
46