1 // -*- C++ -*-
2 
3 // Copyright (C) 2005-2018 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library.  This library is free
6 // software; you can redistribute it and/or modify it under the terms
7 // of the GNU General Public License as published by the Free Software
8 // Foundation; either version 3, or (at your option) any later
9 // version.
10 
11 // This library is distributed in the hope that it will be useful, but
12 // WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 // General Public License for more details.
15 
16 // You should have received a copy of the GNU General Public License
17 // along with this library; see the file COPYING3.  If not see
18 // <http://www.gnu.org/licenses/>.
19 
20 
21 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
22 
23 // Permission to use, copy, modify, sell, and distribute this software
24 // is hereby granted without fee, provided that the above copyright
25 // notice appears in all copies, and that both that copyright notice
26 // and this permission notice appear in supporting documentation. None
27 // of the above authors, nor IBM Haifa Research Laboratories, make any
28 // representation about the suitability of this software for any
29 // purpose. It is provided "as is" without express or implied
30 // warranty.
31 
32 /**
33  * @file verified_cmd_line_input.cpp
34  * Contains definitions for tests - verified command line input.
35  */
36 
37 #include <util/io/verified_cmd_line_input.hpp>
38 #include <limits.h>
39 #include <utility>
40 #include <stdlib.h>
41 #include <bits/functexcept.h>
42 
43 namespace __gnu_pbds
44 {
45   namespace test
46   {
47     void
verify_argc(size_t given,size_t required)48     verify_argc(size_t given, size_t required)
49     {
50       if (given != required)
51 	__throw_illegal_input_error();
52     }
53 
54     void
verify_prob(double prob)55     verify_prob(double prob)
56     {
57       if (prob < 0 || prob > 1)
58         __throw_illegal_input_error();
59     }
60 
61     std::string
get_cmd_line_str(int argc,char * a_p_argv[],int argn)62     get_cmd_line_str(int argc, char* a_p_argv[], int argn)
63     {
64       if (argc <= argn)
65         __throw_illegal_input_error();
66       const std::string ret(a_p_argv[argn]);
67       return ret;
68     }
69 
70     double
get_cmd_line_prob(int argc,char * a_p_argv[],int argn)71     get_cmd_line_prob(int argc, char* a_p_argv[], int argn)
72     {
73       if (argc <= argn)
74         __throw_illegal_input_error();
75       const double ret = ::atof(a_p_argv[argn]);
76       verify_prob(ret);
77       return ret;
78     }
79 
80     size_t
get_cmd_line_size(int argc,char * a_p_argv[],int argn)81     get_cmd_line_size(int argc, char* a_p_argv[], int argn)
82     {
83       if (argc <= argn)
84         __throw_illegal_input_error();
85       const size_t ret = static_cast<size_t>(::atoi(a_p_argv[argn]));
86       return ret;
87     }
88 
89     bool
get_cmd_line_bool(int argc,char * a_p_argv[],int argn)90     get_cmd_line_bool(int argc, char* a_p_argv[], int argn)
91     {
92       if (argc <= argn)
93         __throw_illegal_input_error();
94 
95       const std::string opt(a_p_argv[argn]);
96       if (opt.size() != 1)
97         __throw_illegal_input_error();
98       if (opt[0] == 't')
99         return true;
100       if (opt[0] == 'f')
101         return false;
102       __throw_illegal_input_error();
103       return false;
104     }
105   } // namespace test
106 } // namespace __gnu_pbds
107