Johnny Chen | d5e111c | 2010-09-15 22:27:29 +0000 | [diff] [blame^] | 1 | //===-- 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> |
| 13 | |
| 14 | int |
| 15 | main(int argc, char const *argv[]) |
| 16 | { |
| 17 | char const *cptr = NULL; |
| 18 | // The program writes its output to the "output.txt" file. |
| 19 | std::ofstream outfile("output.txt"); |
| 20 | |
| 21 | for (unsigned i = 0, e = sizeof(argv); i < e; ++i) { |
| 22 | if ((cptr = argv[i]) == NULL) |
| 23 | break; |
| 24 | |
| 25 | std::string str(cptr); |
| 26 | if (i == 1 && "A" == str) |
| 27 | outfile << "argv[1] matches\n"; |
| 28 | |
| 29 | if (i == 2 && "B" == str) |
| 30 | outfile << "argv[2] matches\n"; |
| 31 | |
| 32 | if (i == 3 && "C" == str) |
| 33 | outfile << "argv[3] matches\n"; |
| 34 | } |
| 35 | |
| 36 | if (::getenv("MY_ENV_VAR")) { |
| 37 | std::string MY_ENV_VAR(getenv("MY_ENV_VAR")); |
| 38 | if ("YES" == MY_ENV_VAR) { |
| 39 | outfile << "Environment variable 'MY_ENV_VAR' successfully passed.\n"; |
| 40 | } |
| 41 | } |
| 42 | |
| 43 | return 0; |
| 44 | } |