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add adaptors::counting

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bolero-MURAKAMI 2012-05-22 21:16:16 +09:00
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198
example/fizzbuzz/main.cpp
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@ -1,99 +1,99 @@
// //
// Sprout C++ Library // Sprout C++ Library
// //
// Copyright (c) 2012 // Copyright (c) 2012
// bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/ // bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/
// osyo-manga : http://d.hatena.ne.jp/osyo-manga/ // osyo-manga : http://d.hatena.ne.jp/osyo-manga/
// //
// Readme: // Readme:
// https://github.com/bolero-MURAKAMI/Sprout/blob/master/README // https://github.com/bolero-MURAKAMI/Sprout/blob/master/README
// //
// License: // License:
// Boost Software License - Version 1.0 // Boost Software License - Version 1.0
// <http://www.boost.org/LICENSE_1_0.txt> // <http://www.boost.org/LICENSE_1_0.txt>
// //
#include <sprout/algorithm/transform.hpp> #include <sprout/algorithm/transform.hpp>
#include <sprout/array.hpp> #include <sprout/array.hpp>
#include <sprout/string.hpp> #include <sprout/string.hpp>
#include <sprout/numeric/iota.hpp> #include <sprout/numeric/iota.hpp>
#include <sprout/pit.hpp> #include <sprout/pit.hpp>
#include <iostream> #include <iostream>
struct fizzbuzz{ struct fizzbuzz{
typedef sprout::string<12> result_type; typedef sprout::string<12> result_type;
constexpr result_type constexpr result_type
operator ()(int n) const{ operator ()(int n) const{
return n % 15 == 0 ? sprout::to_string("FizzBuzz") return n % 15 == 0 ? sprout::to_string("FizzBuzz")
: n % 3 == 0 ? sprout::to_string("Fizz") : n % 3 == 0 ? sprout::to_string("Fizz")
: n % 5 == 0 ? sprout::to_string("Buzz") : n % 5 == 0 ? sprout::to_string("Buzz")
: sprout::to_string(n); : sprout::to_string(n);
} }
}; };
int int
main(){ main(){
typedef fizzbuzz::result_type string; typedef fizzbuzz::result_type string;
// //
// Test // Test
// //
static_assert(fizzbuzz()( 1) == "1", ""); static_assert(fizzbuzz()( 1) == "1", "");
static_assert(fizzbuzz()( 2) == "2", ""); static_assert(fizzbuzz()( 2) == "2", "");
static_assert(fizzbuzz()( 3) == "Fizz", ""); static_assert(fizzbuzz()( 3) == "Fizz", "");
static_assert(fizzbuzz()( 5) == "Buzz", ""); static_assert(fizzbuzz()( 5) == "Buzz", "");
static_assert(fizzbuzz()(15) == "FizzBuzz", ""); static_assert(fizzbuzz()(15) == "FizzBuzz", "");
// //
// Sequence [1..15] // Sequence [1..15]
// //
constexpr auto source = sprout::iota( constexpr auto source = sprout::iota(
sprout::pit<sprout::array<int, 15> >(), sprout::pit<sprout::array<int, 15> >(),
1 1
); );
// //
// Transform to FizzBuzz // Transform to FizzBuzz
// //
constexpr auto result = sprout::transform( constexpr auto result = sprout::transform(
sprout::begin(source), sprout::begin(source),
sprout::end(source), sprout::end(source),
sprout::pit<sprout::array<string, 15> >(), sprout::pit<sprout::array<string, 15> >(),
fizzbuzz() fizzbuzz()
); );
// //
// Check result // Check result
// //
constexpr auto fizzbuzz_result = sprout::make_array<string>( constexpr auto fizzbuzz_result = sprout::make_array<string>(
sprout::to_string("1"), sprout::to_string("1"),
sprout::to_string("2"), sprout::to_string("2"),
sprout::to_string("Fizz"), sprout::to_string("Fizz"),
sprout::to_string("4"), sprout::to_string("4"),
sprout::to_string("Buzz"), sprout::to_string("Buzz"),
sprout::to_string("Fizz"), sprout::to_string("Fizz"),
sprout::to_string("7"), sprout::to_string("7"),
sprout::to_string("8"), sprout::to_string("8"),
sprout::to_string("Fizz"), sprout::to_string("Fizz"),
sprout::to_string("Buzz"), sprout::to_string("Buzz"),
sprout::to_string("11"), sprout::to_string("11"),
sprout::to_string("Fizz"), sprout::to_string("Fizz"),
sprout::to_string("13"), sprout::to_string("13"),
sprout::to_string("14"), sprout::to_string("14"),
sprout::to_string("FizzBuzz") sprout::to_string("FizzBuzz")
); );
// Equal result sequence // Equal result sequence
static_assert(result == fizzbuzz_result, ""); static_assert(result == fizzbuzz_result, "");
// //
// Output // Output
// //
for(auto&& str : result){ for(auto&& str : result){
std::cout << str << ", "; std::cout << str << ", ";
} }
std::cout << std::endl; std::cout << std::endl;
return 0; return 0;
} }

120
libs/string/example/literals_to_string.cpp
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@ -1,60 +1,60 @@
// //
// Sprout C++ Library // Sprout C++ Library
// //
// Copyright (c) 2012 // Copyright (c) 2012
// bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/ // bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/
// osyo-manga : http://d.hatena.ne.jp/osyo-manga/ // osyo-manga : http://d.hatena.ne.jp/osyo-manga/
// //
// Readme: // Readme:
// https://github.com/bolero-MURAKAMI/Sprout/blob/master/README // https://github.com/bolero-MURAKAMI/Sprout/blob/master/README
// //
// License: // License:
// Boost Software License - Version 1.0 // Boost Software License - Version 1.0
// <http://www.boost.org/LICENSE_1_0.txt> // <http://www.boost.org/LICENSE_1_0.txt>
// //
#include <sprout/string.hpp> #include <sprout/string.hpp>
int int
main(){ main(){
// //
// String literal to Sprout.String // String literal to Sprout.String
// //
{ {
static constexpr auto str1 = sprout::to_string("homu"); static constexpr auto str1 = sprout::to_string("homu");
static_assert(str1 == "homu", ""); static_assert(str1 == "homu", "");
static_assert(std::is_same<decltype(str1), sprout::string<4> const>{}, ""); static_assert(std::is_same<decltype(str1), sprout::string<4> const>{}, "");
static constexpr auto str2 = sprout::to_string(L"ほむほむ"); static constexpr auto str2 = sprout::to_string(L"ほむほむ");
static_assert(str2 == L"ほむほむ", ""); static_assert(str2 == L"ほむほむ", "");
static_assert(std::is_same<decltype(str2), sprout::wstring<4> const>{}, ""); static_assert(std::is_same<decltype(str2), sprout::wstring<4> const>{}, "");
} }
// //
// Integer literal to Sprout.String // Integer literal to Sprout.String
// //
{ {
static constexpr auto str = sprout::to_string(42); static constexpr auto str = sprout::to_string(42);
static_assert(str == "42", ""); static_assert(str == "42", "");
} }
// //
// Float literal to Sprout.String // Float literal to Sprout.String
// //
{ {
static constexpr auto str = sprout::to_string(3.14f); static constexpr auto str = sprout::to_string(3.14f);
static_assert(str == "3.140000", ""); static_assert(str == "3.140000", "");
} }
// //
// Char literal to Sprout.String // Char literal to Sprout.String
// //
{ {
static constexpr auto str = sprout::make_string('m', 'a', 'd', 'o'); static constexpr auto str = sprout::make_string('m', 'a', 'd', 'o');
static_assert(str == "mado", ""); static_assert(str == "mado", "");
static_assert(std::is_same<decltype(str), sprout::string<4> const>{}, ""); static_assert(std::is_same<decltype(str), sprout::string<4> const>{}, "");
} }
return 0; return 0;
} }

172
libs/string/example/simple.cpp
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@ -1,86 +1,86 @@
// //
// Sprout C++ Library // Sprout C++ Library
// //
// Copyright (c) 2012 // Copyright (c) 2012
// bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/ // bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/
// osyo-manga : http://d.hatena.ne.jp/osyo-manga/ // osyo-manga : http://d.hatena.ne.jp/osyo-manga/
// //
// Readme: // Readme:
// https://github.com/bolero-MURAKAMI/Sprout/blob/master/README // https://github.com/bolero-MURAKAMI/Sprout/blob/master/README
// //
// License: // License:
// Boost Software License - Version 1.0 // Boost Software License - Version 1.0
// <http://www.boost.org/LICENSE_1_0.txt> // <http://www.boost.org/LICENSE_1_0.txt>
// //
#include <sprout/string.hpp> #include <sprout/string.hpp>
#include <sstream> #include <sstream>
#include <cassert> #include <cassert>
// //
// Sprout.String is constexpr string object // Sprout.String is constexpr string object
// //
int int
main(){ main(){
// //
// String literal to Sprout.String // String literal to Sprout.String
// //
static constexpr sprout::string<4> str1 = sprout::to_string("homu"); static constexpr sprout::string<4> str1 = sprout::to_string("homu");
static constexpr auto str2 = sprout::to_string("mado"); static constexpr auto str2 = sprout::to_string("mado");
static constexpr auto str3 = sprout::to_string(42); static constexpr auto str3 = sprout::to_string(42);
// //
// Comparison // Comparison
// //
static_assert(str1 == sprout::to_string("homu"), ""); static_assert(str1 == sprout::to_string("homu"), "");
static_assert(str2 == "mado", ""); static_assert(str2 == "mado", "");
static_assert(str3 == "42", ""); static_assert(str3 == "42", "");
static_assert(str1 != str2, ""); static_assert(str1 != str2, "");
// //
// Accessor // Accessor
// //
static_assert(str1.front() == 'h', ""); static_assert(str1.front() == 'h', "");
static_assert(str1[1] == 'o', ""); static_assert(str1[1] == 'o', "");
static_assert(str1.at(2) == 'm', ""); static_assert(str1.at(2) == 'm', "");
static_assert(str1.back() == 'u', ""); static_assert(str1.back() == 'u', "");
// //
// String concatenation // String concatenation
// //
static_assert((str1 + "homu") == "homuhomu", ""); static_assert((str1 + "homu") == "homuhomu", "");
static_assert((str1 + str2) == "homumado", ""); static_assert((str1 + str2) == "homumado", "");
static_assert((str1 + sprout::to_string("42")) == "homu42", ""); static_assert((str1 + sprout::to_string("42")) == "homu42", "");
// //
// C style string // C style string
// //
constexpr char const* cp = str1.c_str(); constexpr char const* cp = str1.c_str();
static_assert(cp[0] == 'h', ""); static_assert(cp[0] == 'h', "");
// //
// Iterator // Iterator
// //
static_assert(*str1.begin() == 'h', ""); static_assert(*str1.begin() == 'h', "");
static_assert(*(str1.end() - 1) == 'u', ""); static_assert(*(str1.end() - 1) == 'u', "");
static_assert(*(str1.rbegin() + 1) == 'm', ""); static_assert(*(str1.rbegin() + 1) == 'm', "");
static_assert(*(str1.rend() - 2) == 'o', ""); static_assert(*(str1.rend() - 2) == 'o', "");
// //
// IOStream // IOStream
// //
{ {
std::ostringstream os; std::ostringstream os;
os << str1; os << str1;
assert(os.str() == "homu"); assert(os.str() == "homu");
} }
{ {
std::istringstream is("mami"); std::istringstream is("mami");
sprout::string<4> str; sprout::string<4> str;
is >> str; is >> str;
assert(str == "mami"); assert(str == "mami");
} }
return 0; return 0;
} }

136
libs/weed/example/__TIME__.cpp
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@ -1,68 +1,68 @@
// //
// Sprout C++ Library // Sprout C++ Library
// //
// Copyright (c) 2012 // Copyright (c) 2012
// bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/ // bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/
// osyo-manga : http://d.hatena.ne.jp/osyo-manga/ // osyo-manga : http://d.hatena.ne.jp/osyo-manga/
// //
// Readme: // Readme:
// https://github.com/bolero-MURAKAMI/Sprout/blob/master/README // https://github.com/bolero-MURAKAMI/Sprout/blob/master/README
// //
// License: // License:
// Boost Software License - Version 1.0 // Boost Software License - Version 1.0
// <http://www.boost.org/LICENSE_1_0.txt> // <http://www.boost.org/LICENSE_1_0.txt>
// //
#include <sprout/weed.hpp> #include <sprout/weed.hpp>
#include <boost/mpl/print.hpp> #include <boost/mpl/print.hpp>
#include <boost/mpl/int.hpp> #include <boost/mpl/int.hpp>
#include <iostream> #include <iostream>
// //
// __TIME__ Parser // __TIME__ Parser
// //
int int
main(){ main(){
namespace w = sprout::weed; namespace w = sprout::weed;
// //
// __TIME__ to Sprout.String // __TIME__ to Sprout.String
// //
static constexpr auto time = sprout::to_string(__TIME__); static constexpr auto time = sprout::to_string(__TIME__);
// static constexpr auto time = sprout::to_string("23:22:45"); // static constexpr auto time = sprout::to_string("23:22:45");
// //
// parse __TIME__ // parse __TIME__
// //
constexpr auto parser = w::int_ >> ':' >> w::int_ >> ':' >> w::int_; constexpr auto parser = w::int_ >> ':' >> w::int_ >> ':' >> w::int_;
static constexpr auto result = w::parse(time.begin(), time.end(), parser); static constexpr auto result = w::parse(time.begin(), time.end(), parser);
static_assert(result.success(), "failed parse"); static_assert(result.success(), "failed parse");
// //
// get result // get result
// //
static constexpr sprout::array<long long int, 3> result_attr = result.attr(); static constexpr sprout::array<long long int, 3> result_attr = result.attr();
static constexpr auto hour = result_attr[0]; static constexpr auto hour = result_attr[0];
static constexpr auto minute = result_attr[1]; static constexpr auto minute = result_attr[1];
static constexpr auto second = result_attr[2]; static constexpr auto second = result_attr[2];
// static_assert(hour == 23, ""); // static_assert(hour == 23, "");
// static_assert(minute == 22, ""); // static_assert(minute == 22, "");
// static_assert(second == 45, ""); // static_assert(second == 45, "");
std::cout << hour << std::endl; std::cout << hour << std::endl;
std::cout << minute << std::endl; std::cout << minute << std::endl;
std::cout << second << std::endl; std::cout << second << std::endl;
// //
// compile time output // compile time output
// //
namespace m = boost::mpl; namespace m = boost::mpl;
typedef m::print<m::int_<hour>>::type hour_; typedef m::print<m::int_<hour>>::type hour_;
typedef m::print<m::int_<minute>>::type minute_; typedef m::print<m::int_<minute>>::type minute_;
typedef m::print<m::int_<second>>::type second_; typedef m::print<m::int_<second>>::type second_;
return 0; return 0;
} }

72
libs/weed/example/remove_space.cpp
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@ -1,36 +1,36 @@
// //
// Sprout C++ Library // Sprout C++ Library
// //
// Copyright (c) 2012 // Copyright (c) 2012
// bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/ // bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/
// osyo-manga : http://d.hatena.ne.jp/osyo-manga/ // osyo-manga : http://d.hatena.ne.jp/osyo-manga/
// //
// Readme: // Readme:
// https://github.com/bolero-MURAKAMI/Sprout/blob/master/README // https://github.com/bolero-MURAKAMI/Sprout/blob/master/README
// //
// License: // License:
// Boost Software License - Version 1.0 // Boost Software License - Version 1.0
// <http://www.boost.org/LICENSE_1_0.txt> // <http://www.boost.org/LICENSE_1_0.txt>
// //
#include <sprout/weed.hpp> #include <sprout/weed.hpp>
int int
main(){ main(){
namespace w = sprout::weed; namespace w = sprout::weed;
static constexpr auto max_string_size = 32; static constexpr auto max_string_size = 32;
static constexpr auto space = *w::omit[ w::space ]; static constexpr auto space = *w::omit[ w::space ];
static constexpr auto remove_space = *w::lim<max_string_size>(space >> w::char_); static constexpr auto remove_space = *w::lim<max_string_size>(space >> w::char_);
static constexpr auto source = sprout::to_string(" homu : mami= 10 "); static constexpr auto source = sprout::to_string(" homu : mami= 10 ");
static constexpr auto result = w::parse( static constexpr auto result = w::parse(
sprout::begin(source), sprout::end(source), sprout::begin(source), sprout::end(source),
remove_space remove_space
); );
static_assert(result.success(), "fail remove_space parse"); static_assert(result.success(), "fail remove_space parse");
static_assert(result.attr() == "homu:mami=10", ""); static_assert(result.attr() == "homu:mami=10", "");
return 0; return 0;
} }

243
sprout/iterator/counting_iterator.hpp Normal file
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@ -0,0 +1,243 @@
#ifndef SPROUT_ITERATOR_COUNTING_ITERATOR_HPP
#define SPROUT_ITERATOR_COUNTING_ITERATOR_HPP
#include <cstddef>
#include <iterator>
#include <utility>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/iterator/next.hpp>
#include <sprout/iterator/prev.hpp>
#include <sprout/iterator/distance.hpp>
namespace sprout {
//
// counting_iterator
//
template<typename Incrementable>
class counting_iterator
: public std::iterator<
std::random_access_iterator_tag,
Incrementable,
std::ptrdiff_t,
Incrementable*,
Incrementable
>
{
public:
typedef std::random_access_iterator_tag iterator_category;
typedef Incrementable value_type;
typedef std::ptrdiff_t difference_type;
typedef value_type* pointer;
typedef value_type reference;
private:
value_type current_;
private:
public:
counting_iterator() = default;
counting_iterator(counting_iterator const&) = default;
explicit SPROUT_CONSTEXPR counting_iterator(value_type const& v)
: current_(v)
{}
template<typename U>
SPROUT_CONSTEXPR counting_iterator(counting_iterator<U> const& it)
: current_(it.current_)
{}
template<typename U>
counting_iterator& operator=(counting_iterator<U> const& it) {
counting_iterator temp(it);
temp.swap(*this);
return *this;
}
SPROUT_CONSTEXPR reference operator*() const {
return current_;
}
SPROUT_CONSTEXPR pointer operator->() const {
return &current_;
}
counting_iterator& operator++() {
++current_;
return *this;
}
counting_iterator operator++(int) {
counting_iterator result(*this);
++current_;
return result;
}
counting_iterator& operator--() {
--current_;
return *this;
}
counting_iterator operator--(int) {
counting_iterator temp(*this);
--current_;
return temp;
}
SPROUT_CONSTEXPR counting_iterator operator+(difference_type n) const {
return counting_iterator(current_ + n);
}
SPROUT_CONSTEXPR counting_iterator operator-(difference_type n) const {
return counting_iterator(current_ - n);
}
counting_iterator& operator+=(difference_type n) {
counting_iterator temp(current_ + n);
temp.swap(*this);
return *this;
}
counting_iterator& operator-=(difference_type n) {
counting_iterator temp(current_ - n);
temp.swap(*this);
return *this;
}
SPROUT_CONSTEXPR reference operator[](difference_type n) const {
return current_ + n;
}
SPROUT_CONSTEXPR counting_iterator next() const {
return counting_iterator(current_ + 1);
}
SPROUT_CONSTEXPR counting_iterator prev() const {
return counting_iterator(current_ - 1);
}
void swap(counting_iterator& other) {
using std::swap;
swap(current_, other.current_);
}
};
template<typename Incrementable1, typename Incrementable2>
SPROUT_CONSTEXPR bool operator==(
sprout::counting_iterator<Incrementable1> const& lhs,
sprout::counting_iterator<Incrementable2> const& rhs
)
{
return *lhs == *rhs;
}
template<typename Incrementable1, typename Incrementable2>
SPROUT_CONSTEXPR bool operator!=(
sprout::counting_iterator<Incrementable1> const& lhs,
sprout::counting_iterator<Incrementable2> const& rhs
)
{
return !(lhs == rhs);
}
template<typename Incrementable1, typename Incrementable2>
SPROUT_CONSTEXPR bool operator<(
sprout::counting_iterator<Incrementable1> const& lhs,
sprout::counting_iterator<Incrementable2> const& rhs
)
{
return *lhs < *rhs;
}
template<typename Incrementable1, typename Incrementable2>
SPROUT_CONSTEXPR bool operator>(
sprout::counting_iterator<Incrementable1> const& lhs,
sprout::counting_iterator<Incrementable2> const& rhs
)
{
return rhs < lhs;
}
template<typename Incrementable1, typename Incrementable2>
SPROUT_CONSTEXPR bool operator<=(
sprout::counting_iterator<Incrementable1> const& lhs,
sprout::counting_iterator<Incrementable2> const& rhs
)
{
return !(rhs < lhs);
}
template<typename Incrementable1, typename Incrementable2>
SPROUT_CONSTEXPR bool operator>=(
sprout::counting_iterator<Incrementable1> const& lhs,
sprout::counting_iterator<Incrementable2> const& rhs
)
{
return !(lhs < rhs);
}
template<typename Incrementable1, typename Incrementable2>
SPROUT_CONSTEXPR typename sprout::counting_iterator<Incrementable1>::difference_type operator-(
sprout::counting_iterator<Incrementable1> const& lhs,
sprout::counting_iterator<Incrementable2> const& rhs
)
{
return static_cast<typename sprout::counting_iterator<Incrementable1>::difference_type>(*lhs - *rhs);
}
template<typename Incrementable>
SPROUT_CONSTEXPR sprout::counting_iterator<Incrementable> operator+(
typename sprout::counting_iterator<Incrementable>::difference_type n,
sprout::counting_iterator<Incrementable> const& it
)
{
return it + n;
}
//
// make_counting_iterator
//
template<typename Incrementable>
SPROUT_CONSTEXPR sprout::counting_iterator<Incrementable>
make_counting_iterator(Incrementable const& v) {
return sprout::counting_iterator<Incrementable>(v);
}
//
// swap
//
template<typename Incrementable>
void swap(sprout::counting_iterator<Incrementable>& lhs, sprout::counting_iterator<Incrementable>& rhs)
SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(lhs.swap(rhs)))
{
lhs.swap(rhs);
}
//
// next
//
template<typename Incrementable>
SPROUT_CONSTEXPR sprout::counting_iterator<Incrementable> next(
sprout::counting_iterator<Incrementable> const& it
)
{
return it.next();
}
template<typename Incrementable>
SPROUT_CONSTEXPR sprout::counting_iterator<Incrementable> next(
sprout::counting_iterator<Incrementable> const& it,
typename sprout::counting_iterator<Incrementable>::difference_type n
)
{
return it + n;
}
//
// prev
//
template<typename Incrementable>
SPROUT_CONSTEXPR sprout::counting_iterator<Incrementable> prev(
sprout::counting_iterator<Incrementable> const& it
)
{
return it.prev();
}
template<typename Incrementable>
SPROUT_CONSTEXPR sprout::counting_iterator<Incrementable> prev(
sprout::counting_iterator<Incrementable> const& it,
typename sprout::counting_iterator<Incrementable>::difference_type n
)
{
return it - n;
}
//
// distance
//
template<typename Incrementable>
SPROUT_CONSTEXPR typename std::iterator_traits<sprout::counting_iterator<Incrementable> >::difference_type
distance(
sprout::counting_iterator<Incrementable> first,
sprout::counting_iterator<Incrementable> last
)
{
return last - first;
}
} // namespace sprout
#endif // #ifndef SPROUT_ITERATOR_COUNTING_ITERATOR_HPP

1
sprout/range/adaptor.hpp
View file

@ -4,6 +4,7 @@
#include <sprout/config.hpp> #include <sprout/config.hpp>
#include <sprout/range/adaptor/copied.hpp> #include <sprout/range/adaptor/copied.hpp>
#include <sprout/range/adaptor/transformed.hpp> #include <sprout/range/adaptor/transformed.hpp>
#include <sprout/range/adaptor/size_enumed.hpp>
#include <sprout/range/adaptor/sinusoidal.hpp> #include <sprout/range/adaptor/sinusoidal.hpp>
#endif // #ifndef SPROUT_RANGE_ADAPTOR_HPP #endif // #ifndef SPROUT_RANGE_ADAPTOR_HPP

174
sprout/range/adaptor/counting.hpp Normal file
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@ -0,0 +1,174 @@
#ifndef SPROUT_RANGE_ADAPTOR_COUNTING_HPP
#define SPROUT_RANGE_ADAPTOR_COUNTING_HPP
#include <limits>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/pit.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/iterator/counting_iterator.hpp>
#include <sprout/range/range_container.hpp>
#include <sprout/range/algorithm/copy.hpp>
#include <sprout/type_traits/lvalue_reference.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/utility/lvalue_forward.hpp>
namespace sprout {
namespace adaptors {
//
// counting_range
//
template<typename Incrementable, typename Range = void>
class counting_range
: public sprout::range::range_container<
sprout::counting_iterator<Incrementable>
>
, public sprout::detail::container_nosy_static_size<Range>
, public sprout::detail::container_nosy_fixed_size<Range>
{
public:
typedef Range range_type;
typedef sprout::range::range_container<
sprout::counting_iterator<Incrementable>
> base_type;
typedef typename base_type::iterator iterator;
typedef typename base_type::value_type value_type;
typedef typename base_type::difference_type difference_type;
public:
counting_range() = default;
counting_range(counting_range const&) = default;
explicit SPROUT_CONSTEXPR counting_range(range_type& range)
: base_type(
iterator(),
sprout::next(iterator(), sprout::size(range))
)
{}
SPROUT_CONSTEXPR counting_range(
range_type& range,
value_type const& first
)
: base_type(
iterator(first),
sprout::next(iterator(first), sprout::size(range))
)
{}
SPROUT_CONSTEXPR counting_range(
range_type& range,
value_type const& first,
value_type const& last
)
: base_type(
iterator(first),
sprout::size(range) < last - first ? sprout::next(iterator(first), sprout::size(range))
: iterator(last)
)
{}
};
template<typename Incrementable>
class counting_range<Incrementable, void>
: public sprout::range::range_container<
sprout::counting_iterator<Incrementable>
>
{
public:
typedef sprout::range::range_container<
sprout::counting_iterator<Incrementable>
> base_type;
typedef typename base_type::iterator iterator;
typedef typename base_type::value_type value_type;
typedef typename base_type::difference_type difference_type;
public:
counting_range() = default;
counting_range(counting_range const&) = default;
explicit SPROUT_CONSTEXPR counting_range(value_type const& first)
: base_type(
iterator(first),
iterator(std::numeric_limits<value_type>::max())
)
{}
SPROUT_CONSTEXPR counting_range(
value_type const& first,
value_type const& last
)
: base_type(
iterator(first),
iterator(last)
)
{}
};
//
// counting_forwarder
//
class counting_forwarder {
public:
template<typename Incrementable>
SPROUT_CONSTEXPR sprout::adaptors::counting_range<Incrementable>
operator()(Incrementable const& first) const {
return sprout::adaptors::counting_range<Incrementable>(first);
}
template<typename Incrementable>
SPROUT_CONSTEXPR sprout::adaptors::counting_range<Incrementable>
operator()(Incrementable const& first, Incrementable const& last) const {
return sprout::adaptors::counting_range<Incrementable>(first, last);
}
};
//
// counting
//
namespace {
SPROUT_STATIC_CONSTEXPR sprout::adaptors::counting_forwarder counting{};
} // anonymous-namespace
//
// operator|
//
template<typename Range, typename Incrementable>
inline SPROUT_CONSTEXPR sprout::adaptors::counting_range<
Incrementable,
typename std::remove_reference<typename sprout::lvalue_reference<Range>::type>::type
>
operator|(Range&& lhs, sprout::adaptors::counting_range<Incrementable> const& rhs) {
return sprout::adaptors::counting_range<
Incrementable,
typename std::remove_reference<typename sprout::lvalue_reference<Range>::type>::type
>(
sprout::lvalue_forward<Range>(lhs),
*rhs.begin(),
*rhs.end()
);
}
} // namespace adaptors
//
// container_construct_traits
//
template<typename Incrementable, typename Range>
struct container_construct_traits<sprout::adaptors::counting_range<Incrementable, Range> > {
public:
typedef typename sprout::container_construct_traits<Range>::copied_type copied_type;
public:
template<typename Cont>
static SPROUT_CONSTEXPR copied_type deep_copy(Cont&& cont) {
return sprout::range::fixed::copy(sprout::forward<Cont>(cont), sprout::pit<copied_type>());
}
template<typename... Args>
static SPROUT_CONSTEXPR copied_type make(Args&&... args) {
return sprout::make<copied_type>(sprout::forward<Args>(args)...);
}
template<typename Cont, typename... Args>
static SPROUT_CONSTEXPR copied_type remake(
Cont&& cont,
typename sprout::container_traits<sprout::adaptors::counting_range<Incrementable, Range> >::difference_type size,
Args&&... args
)
{
return sprout::remake<copied_type>(sprout::forward<Cont>(cont), size, sprout::forward<Args>(args)...);
}
};
} // namespace sprout
#endif // #ifndef SPROUT_RANGE_ADAPTOR_COUNTING_HPP

8
sprout/range/adaptor/transformed.hpp
View file

@ -45,8 +45,8 @@ namespace sprout {
typedef typename base_type::iterator iterator; typedef typename base_type::iterator iterator;
typedef typename base_type::size_type size_type; typedef typename base_type::size_type size_type;
public: public:
SPROUT_CONSTEXPR transformed_range() = default; transformed_range() = default;
SPROUT_CONSTEXPR transformed_range(transformed_range const&) = default; transformed_range(transformed_range const&) = default;
SPROUT_CONSTEXPR transformed_range(functor_type func, range_type& range1, range2_type& range2) SPROUT_CONSTEXPR transformed_range(functor_type func, range_type& range1, range2_type& range2)
: base_type( : base_type(
iterator(sprout::begin(range1), sprout::begin(range2), func), iterator(sprout::begin(range1), sprout::begin(range2), func),
@ -77,8 +77,8 @@ namespace sprout {
> base_type; > base_type;
typedef typename base_type::iterator iterator; typedef typename base_type::iterator iterator;
public: public:
SPROUT_CONSTEXPR transformed_range() = default; transformed_range() = default;
SPROUT_CONSTEXPR transformed_range(transformed_range const&) = default; transformed_range(transformed_range const&) = default;
SPROUT_CONSTEXPR transformed_range(functor_type func, range_type& range) SPROUT_CONSTEXPR transformed_range(functor_type func, range_type& range)
: base_type( : base_type(
iterator(sprout::begin(range), func), iterator(sprout::begin(range), func),