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Get examples working, mostly. Some interface expansion for a few of

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the adaptors, allowing default construction of UnaryFunction and
Predicate arguments when they are class types.


[SVN r19081]
This commit is contained in:
Dave Abrahams
2003-07-12 04:15:13 +00:00
parent c4b7aaf281
commit 074007ab8c
14 changed files with 135 additions and 1108 deletions
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46
indirect_iterator_example.cpp
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@@ -8,7 +8,43 @@
#include <iostream>
#include <iterator>
#include <functional>
#include <boost/iterator_adaptors.hpp>
#include <algorithm>
#include <boost/iterator/indirect_iterator.hpp>
#ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
namespace boost { namespace detail
{
template <>
struct iterator_traits<char*>
: ptr_iter_traits<char>
{
};
template <>
struct iterator_traits<char const*>
: ptr_iter_traits<char, char const>
{
};
template <>
struct iterator_traits<char**>
: ptr_iter_traits<char*>
{
};
template <>
struct iterator_traits<char const* const*>
: ptr_iter_traits<char const*, char const* const>
{
};
template <>
struct iterator_traits<char* const*>
: ptr_iter_traits<char*, char* const>
{
};
}}
#endif
int main(int, char*[])
{
@@ -20,7 +56,7 @@ int main(int, char*[])
// Example of using indirect_iterator_generator
boost::indirect_iterator_generator<char**, char>::type
boost::indirect_iterator<char**, char>
indirect_first(pointers_to_chars), indirect_last(pointers_to_chars + N);
std::copy(indirect_first, indirect_last, std::ostream_iterator<char>(std::cout, ","));
@@ -29,16 +65,14 @@ int main(int, char*[])
// Example of using indirect_iterator_pair_generator
typedef boost::indirect_iterator_pair_generator<char**, char> PairGen;
char mutable_characters[N];
char* pointers_to_mutable_chars[N];
for (int j = 0; j < N; ++j)
pointers_to_mutable_chars[j] = &mutable_characters[j];
PairGen::iterator mutable_indirect_first(pointers_to_mutable_chars),
boost::indirect_iterator<char* const*> mutable_indirect_first(pointers_to_mutable_chars),
mutable_indirect_last(pointers_to_mutable_chars + N);
PairGen::const_iterator const_indirect_first(pointers_to_chars),
boost::indirect_iterator<char const* const*> const_indirect_first(pointers_to_chars),
const_indirect_last(pointers_to_chars + N);
std::transform(const_indirect_first, const_indirect_last,