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1 | /* boost random/vector_io.hpp header file |
2 | * | |
3 | * Copyright Steven Watanabe 2011 | |
4 | * Distributed under the Boost Software License, Version 1.0. (See | |
5 | * accompanying file LICENSE_1_0.txt or copy at | |
6 | * http://www.boost.org/LICENSE_1_0.txt) | |
7 | * | |
8 | * See http://www.boost.org for most recent version including documentation. | |
9 | * | |
10 | * $Id$ | |
11 | */ | |
12 | ||
13 | #ifndef BOOST_RANDOM_DETAIL_VECTOR_IO_HPP | |
14 | #define BOOST_RANDOM_DETAIL_VECTOR_IO_HPP | |
15 | ||
16 | #include <vector> | |
17 | #include <iosfwd> | |
18 | #include <istream> | |
19 | ||
20 | namespace boost { | |
21 | namespace random { | |
22 | namespace detail { | |
23 | ||
24 | template<class CharT, class Traits, class T> | |
25 | void print_vector(std::basic_ostream<CharT, Traits>& os, | |
26 | const std::vector<T>& vec) | |
27 | { | |
28 | typename std::vector<T>::const_iterator | |
29 | iter = vec.begin(), | |
30 | end = vec.end(); | |
31 | os << os.widen('['); | |
32 | if(iter != end) { | |
33 | os << *iter; | |
34 | ++iter; | |
35 | for(; iter != end; ++iter) | |
36 | { | |
37 | os << os.widen(' ') << *iter; | |
38 | } | |
39 | } | |
40 | os << os.widen(']'); | |
41 | } | |
42 | ||
43 | template<class CharT, class Traits, class T> | |
44 | void read_vector(std::basic_istream<CharT, Traits>& is, std::vector<T>& vec) | |
45 | { | |
46 | CharT ch; | |
47 | if(!(is >> ch)) { | |
48 | return; | |
49 | } | |
50 | if(ch != is.widen('[')) { | |
51 | is.putback(ch); | |
52 | is.setstate(std::ios_base::failbit); | |
53 | return; | |
54 | } | |
55 | T val; | |
56 | while(is >> std::ws >> val) { | |
57 | vec.push_back(val); | |
58 | } | |
59 | if(is.fail()) { | |
60 | is.clear(); | |
61 | if(!(is >> ch)) { | |
62 | return; | |
63 | } | |
64 | if(ch != is.widen(']')) { | |
65 | is.putback(ch); | |
66 | is.setstate(std::ios_base::failbit); | |
67 | } | |
68 | } | |
69 | } | |
70 | ||
71 | } | |
72 | } | |
73 | } | |
74 | ||
75 | #endif // BOOST_RANDOM_DETAIL_VECTOR_IO_HPP |