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Johnny Chend5e111c2010-09-15 22:27:29 +00001//===-- main.cpp ------------------------------------------------*- C++ -*-===//
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 <cstdlib>
11#include <string>
12#include <fstream>
Johnny Chenf7f62712010-09-15 22:48:40 +000013#include <iostream>
Johnny Chend5e111c2010-09-15 22:27:29 +000014
15int
16main(int argc, char const *argv[])
17{
Johnny Chend5e111c2010-09-15 22:27:29 +000018 // The program writes its output to the "output.txt" file.
19 std::ofstream outfile("output.txt");
20
Johnny Chenf7f62712010-09-15 22:48:40 +000021 for (unsigned i = 0; i < argc; ++i) {
22 std::string theArg(argv[i]);
23 if (i == 1 && "A" == theArg)
Johnny Chend5e111c2010-09-15 22:27:29 +000024 outfile << "argv[1] matches\n";
25
Johnny Chenf7f62712010-09-15 22:48:40 +000026 if (i == 2 && "B" == theArg)
Johnny Chend5e111c2010-09-15 22:27:29 +000027 outfile << "argv[2] matches\n";
28
Johnny Chenf7f62712010-09-15 22:48:40 +000029 if (i == 3 && "C" == theArg)
Johnny Chend5e111c2010-09-15 22:27:29 +000030 outfile << "argv[3] matches\n";
31 }
32
Johnny Chen80554b82010-12-04 00:44:56 +000033 // For passing environment vars from the debugger to the launched process.
Johnny Chend5e111c2010-09-15 22:27:29 +000034 if (::getenv("MY_ENV_VAR")) {
35 std::string MY_ENV_VAR(getenv("MY_ENV_VAR"));
36 if ("YES" == MY_ENV_VAR) {
37 outfile << "Environment variable 'MY_ENV_VAR' successfully passed.\n";
38 }
39 }
40
Johnny Chen80554b82010-12-04 00:44:56 +000041
42 // For passing host environment vars to the launched process.
43 if (::getenv("MY_HOST_ENV_VAR1")) {
44 std::string MY_HOST_ENV_VAR1(getenv("MY_HOST_ENV_VAR1"));
45 if ("VAR1" == MY_HOST_ENV_VAR1) {
46 outfile << "The host environment variable 'MY_HOST_ENV_VAR1' successfully passed.\n";
47 }
48 }
49
50 if (::getenv("MY_HOST_ENV_VAR2")) {
51 std::string MY_HOST_ENV_VAR2(getenv("MY_HOST_ENV_VAR2"));
52 if ("VAR2" == MY_HOST_ENV_VAR2) {
53 outfile << "The host environment variable 'MY_HOST_ENV_VAR2' successfully passed.\n";
54 }
55 }
56
Johnny Chenf7f62712010-09-15 22:48:40 +000057 std::cout << "This message should go to standard out.\n";
58
Johnny Chend5e111c2010-09-15 22:27:29 +000059 return 0;
60}