mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-12-23 21:25:49 +00:00
add adaptors::counting
This commit is contained in:
bolero-MURAKAMI
parent
e078a9c749
commit
ea22a6ba5c
9 changed files with 771 additions and 353 deletions
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@ -1,99 +1,99 @@
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//
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// Sprout C++ Library
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//
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// Copyright (c) 2012
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// bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/
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// osyo-manga : http://d.hatena.ne.jp/osyo-manga/
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//
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// Readme:
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// https://github.com/bolero-MURAKAMI/Sprout/blob/master/README
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//
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// License:
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// Boost Software License - Version 1.0
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// <http://www.boost.org/LICENSE_1_0.txt>
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//
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#include <sprout/algorithm/transform.hpp>
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#include <sprout/array.hpp>
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#include <sprout/string.hpp>
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#include <sprout/numeric/iota.hpp>
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#include <sprout/pit.hpp>
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#include <iostream>
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struct fizzbuzz{
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typedef sprout::string<12> result_type;
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constexpr result_type
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operator ()(int n) const{
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return n % 15 == 0 ? sprout::to_string("FizzBuzz")
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: n % 3 == 0 ? sprout::to_string("Fizz")
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: n % 5 == 0 ? sprout::to_string("Buzz")
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: sprout::to_string(n);
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}
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};
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int
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main(){
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typedef fizzbuzz::result_type string;
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//
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// Test
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//
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static_assert(fizzbuzz()( 1) == "1", "");
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static_assert(fizzbuzz()( 2) == "2", "");
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static_assert(fizzbuzz()( 3) == "Fizz", "");
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static_assert(fizzbuzz()( 5) == "Buzz", "");
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static_assert(fizzbuzz()(15) == "FizzBuzz", "");
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//
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// Sequence [1..15]
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//
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constexpr auto source = sprout::iota(
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sprout::pit<sprout::array<int, 15> >(),
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1
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);
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//
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// Transform to FizzBuzz
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//
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constexpr auto result = sprout::transform(
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sprout::begin(source),
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sprout::end(source),
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sprout::pit<sprout::array<string, 15> >(),
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fizzbuzz()
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);
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//
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// Check result
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//
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constexpr auto fizzbuzz_result = sprout::make_array<string>(
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sprout::to_string("1"),
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sprout::to_string("2"),
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sprout::to_string("Fizz"),
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sprout::to_string("4"),
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sprout::to_string("Buzz"),
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sprout::to_string("Fizz"),
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sprout::to_string("7"),
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sprout::to_string("8"),
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sprout::to_string("Fizz"),
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sprout::to_string("Buzz"),
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sprout::to_string("11"),
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sprout::to_string("Fizz"),
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sprout::to_string("13"),
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sprout::to_string("14"),
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sprout::to_string("FizzBuzz")
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);
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// Equal result sequence
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static_assert(result == fizzbuzz_result, "");
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//
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// Output
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//
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for(auto&& str : result){
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std::cout << str << ", ";
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}
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std::cout << std::endl;
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return 0;
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}
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//
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// Sprout C++ Library
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//
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// Copyright (c) 2012
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// bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/
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// osyo-manga : http://d.hatena.ne.jp/osyo-manga/
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//
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// Readme:
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// https://github.com/bolero-MURAKAMI/Sprout/blob/master/README
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//
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// License:
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// Boost Software License - Version 1.0
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// <http://www.boost.org/LICENSE_1_0.txt>
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//
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#include <sprout/algorithm/transform.hpp>
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#include <sprout/array.hpp>
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#include <sprout/string.hpp>
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#include <sprout/numeric/iota.hpp>
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#include <sprout/pit.hpp>
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#include <iostream>
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struct fizzbuzz{
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typedef sprout::string<12> result_type;
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constexpr result_type
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operator ()(int n) const{
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return n % 15 == 0 ? sprout::to_string("FizzBuzz")
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: n % 3 == 0 ? sprout::to_string("Fizz")
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: n % 5 == 0 ? sprout::to_string("Buzz")
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: sprout::to_string(n);
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}
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};
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int
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main(){
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typedef fizzbuzz::result_type string;
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//
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// Test
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//
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static_assert(fizzbuzz()( 1) == "1", "");
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static_assert(fizzbuzz()( 2) == "2", "");
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static_assert(fizzbuzz()( 3) == "Fizz", "");
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static_assert(fizzbuzz()( 5) == "Buzz", "");
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static_assert(fizzbuzz()(15) == "FizzBuzz", "");
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//
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// Sequence [1..15]
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//
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constexpr auto source = sprout::iota(
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sprout::pit<sprout::array<int, 15> >(),
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1
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);
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//
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// Transform to FizzBuzz
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//
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constexpr auto result = sprout::transform(
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sprout::begin(source),
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sprout::end(source),
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sprout::pit<sprout::array<string, 15> >(),
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fizzbuzz()
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);
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//
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// Check result
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//
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constexpr auto fizzbuzz_result = sprout::make_array<string>(
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sprout::to_string("1"),
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sprout::to_string("2"),
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sprout::to_string("Fizz"),
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sprout::to_string("4"),
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sprout::to_string("Buzz"),
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sprout::to_string("Fizz"),
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sprout::to_string("7"),
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sprout::to_string("8"),
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sprout::to_string("Fizz"),
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sprout::to_string("Buzz"),
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sprout::to_string("11"),
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sprout::to_string("Fizz"),
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sprout::to_string("13"),
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sprout::to_string("14"),
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sprout::to_string("FizzBuzz")
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);
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// Equal result sequence
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static_assert(result == fizzbuzz_result, "");
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//
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// Output
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//
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for(auto&& str : result){
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std::cout << str << ", ";
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}
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std::cout << std::endl;
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return 0;
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}
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@ -1,60 +1,60 @@
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//
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// Sprout C++ Library
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//
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// Copyright (c) 2012
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// bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/
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// osyo-manga : http://d.hatena.ne.jp/osyo-manga/
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//
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// Readme:
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// https://github.com/bolero-MURAKAMI/Sprout/blob/master/README
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//
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// License:
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// Boost Software License - Version 1.0
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// <http://www.boost.org/LICENSE_1_0.txt>
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//
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#include <sprout/string.hpp>
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int
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main(){
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//
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// String literal to Sprout.String
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//
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{
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static constexpr auto str1 = sprout::to_string("homu");
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static_assert(str1 == "homu", "");
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static_assert(std::is_same<decltype(str1), sprout::string<4> const>{}, "");
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static constexpr auto str2 = sprout::to_string(L"ほむほむ");
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static_assert(str2 == L"ほむほむ", "");
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static_assert(std::is_same<decltype(str2), sprout::wstring<4> const>{}, "");
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}
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//
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// Integer literal to Sprout.String
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//
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{
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static constexpr auto str = sprout::to_string(42);
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static_assert(str == "42", "");
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}
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//
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// Float literal to Sprout.String
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//
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{
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static constexpr auto str = sprout::to_string(3.14f);
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static_assert(str == "3.140000", "");
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}
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//
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// Char literal to Sprout.String
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//
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{
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static constexpr auto str = sprout::make_string('m', 'a', 'd', 'o');
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static_assert(str == "mado", "");
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static_assert(std::is_same<decltype(str), sprout::string<4> const>{}, "");
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}
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return 0;
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}
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//
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// Sprout C++ Library
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//
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// Copyright (c) 2012
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// bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/
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// osyo-manga : http://d.hatena.ne.jp/osyo-manga/
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//
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// Readme:
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// https://github.com/bolero-MURAKAMI/Sprout/blob/master/README
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//
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// License:
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// Boost Software License - Version 1.0
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// <http://www.boost.org/LICENSE_1_0.txt>
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//
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#include <sprout/string.hpp>
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int
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main(){
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//
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// String literal to Sprout.String
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//
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{
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static constexpr auto str1 = sprout::to_string("homu");
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static_assert(str1 == "homu", "");
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static_assert(std::is_same<decltype(str1), sprout::string<4> const>{}, "");
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static constexpr auto str2 = sprout::to_string(L"ほむほむ");
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static_assert(str2 == L"ほむほむ", "");
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static_assert(std::is_same<decltype(str2), sprout::wstring<4> const>{}, "");
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}
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//
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// Integer literal to Sprout.String
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//
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{
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static constexpr auto str = sprout::to_string(42);
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static_assert(str == "42", "");
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}
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//
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// Float literal to Sprout.String
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//
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{
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static constexpr auto str = sprout::to_string(3.14f);
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static_assert(str == "3.140000", "");
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}
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//
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// Char literal to Sprout.String
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//
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{
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static constexpr auto str = sprout::make_string('m', 'a', 'd', 'o');
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static_assert(str == "mado", "");
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static_assert(std::is_same<decltype(str), sprout::string<4> const>{}, "");
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}
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return 0;
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}
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@ -1,86 +1,86 @@
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//
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// Sprout C++ Library
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//
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// Copyright (c) 2012
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// bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/
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// osyo-manga : http://d.hatena.ne.jp/osyo-manga/
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//
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// Readme:
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// https://github.com/bolero-MURAKAMI/Sprout/blob/master/README
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//
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// License:
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// Boost Software License - Version 1.0
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// <http://www.boost.org/LICENSE_1_0.txt>
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//
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#include <sprout/string.hpp>
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#include <sstream>
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#include <cassert>
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//
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// Sprout.String is constexpr string object
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//
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int
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main(){
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//
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// String literal to Sprout.String
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//
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static constexpr sprout::string<4> str1 = sprout::to_string("homu");
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static constexpr auto str2 = sprout::to_string("mado");
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static constexpr auto str3 = sprout::to_string(42);
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//
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// Comparison
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//
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static_assert(str1 == sprout::to_string("homu"), "");
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static_assert(str2 == "mado", "");
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static_assert(str3 == "42", "");
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static_assert(str1 != str2, "");
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//
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// Accessor
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//
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static_assert(str1.front() == 'h', "");
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static_assert(str1[1] == 'o', "");
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static_assert(str1.at(2) == 'm', "");
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static_assert(str1.back() == 'u', "");
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//
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// String concatenation
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//
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static_assert((str1 + "homu") == "homuhomu", "");
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static_assert((str1 + str2) == "homumado", "");
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static_assert((str1 + sprout::to_string("42")) == "homu42", "");
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//
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// C style string
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//
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constexpr char const* cp = str1.c_str();
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static_assert(cp[0] == 'h', "");
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//
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// Iterator
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//
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static_assert(*str1.begin() == 'h', "");
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static_assert(*(str1.end() - 1) == 'u', "");
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static_assert(*(str1.rbegin() + 1) == 'm', "");
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static_assert(*(str1.rend() - 2) == 'o', "");
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//
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// IOStream
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//
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{
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std::ostringstream os;
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os << str1;
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assert(os.str() == "homu");
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}
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{
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std::istringstream is("mami");
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sprout::string<4> str;
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is >> str;
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assert(str == "mami");
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}
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return 0;
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}
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//
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// Sprout C++ Library
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//
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// Copyright (c) 2012
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// bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/
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// osyo-manga : http://d.hatena.ne.jp/osyo-manga/
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//
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// Readme:
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// https://github.com/bolero-MURAKAMI/Sprout/blob/master/README
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//
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// License:
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// Boost Software License - Version 1.0
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// <http://www.boost.org/LICENSE_1_0.txt>
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//
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#include <sprout/string.hpp>
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#include <sstream>
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#include <cassert>
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//
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// Sprout.String is constexpr string object
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//
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int
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main(){
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//
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// String literal to Sprout.String
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//
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static constexpr sprout::string<4> str1 = sprout::to_string("homu");
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static constexpr auto str2 = sprout::to_string("mado");
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static constexpr auto str3 = sprout::to_string(42);
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//
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// Comparison
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//
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static_assert(str1 == sprout::to_string("homu"), "");
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static_assert(str2 == "mado", "");
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static_assert(str3 == "42", "");
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static_assert(str1 != str2, "");
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//
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// Accessor
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//
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static_assert(str1.front() == 'h', "");
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static_assert(str1[1] == 'o', "");
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static_assert(str1.at(2) == 'm', "");
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static_assert(str1.back() == 'u', "");
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//
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// String concatenation
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//
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static_assert((str1 + "homu") == "homuhomu", "");
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static_assert((str1 + str2) == "homumado", "");
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static_assert((str1 + sprout::to_string("42")) == "homu42", "");
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//
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// C style string
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//
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constexpr char const* cp = str1.c_str();
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static_assert(cp[0] == 'h', "");
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//
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// Iterator
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//
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static_assert(*str1.begin() == 'h', "");
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static_assert(*(str1.end() - 1) == 'u', "");
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static_assert(*(str1.rbegin() + 1) == 'm', "");
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static_assert(*(str1.rend() - 2) == 'o', "");
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//
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// IOStream
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//
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{
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std::ostringstream os;
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os << str1;
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assert(os.str() == "homu");
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}
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{
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std::istringstream is("mami");
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sprout::string<4> str;
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is >> str;
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assert(str == "mami");
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}
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return 0;
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}
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@ -1,68 +1,68 @@
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//
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// Sprout C++ Library
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//
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// Copyright (c) 2012
|
||||
// bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/
|
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// osyo-manga : http://d.hatena.ne.jp/osyo-manga/
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//
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// Readme:
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// https://github.com/bolero-MURAKAMI/Sprout/blob/master/README
|
||||
//
|
||||
// License:
|
||||
// Boost Software License - Version 1.0
|
||||
// <http://www.boost.org/LICENSE_1_0.txt>
|
||||
//
|
||||
#include <sprout/weed.hpp>
|
||||
#include <boost/mpl/print.hpp>
|
||||
#include <boost/mpl/int.hpp>
|
||||
#include <iostream>
|
||||
|
||||
//
|
||||
// __TIME__ Parser
|
||||
//
|
||||
int
|
||||
main(){
|
||||
namespace w = sprout::weed;
|
||||
|
||||
//
|
||||
// __TIME__ to Sprout.String
|
||||
//
|
||||
static constexpr auto time = sprout::to_string(__TIME__);
|
||||
// static constexpr auto time = sprout::to_string("23:22:45");
|
||||
|
||||
|
||||
//
|
||||
// parse __TIME__
|
||||
//
|
||||
constexpr auto parser = w::int_ >> ':' >> w::int_ >> ':' >> w::int_;
|
||||
static constexpr auto result = w::parse(time.begin(), time.end(), parser);
|
||||
static_assert(result.success(), "failed parse");
|
||||
|
||||
|
||||
//
|
||||
// get result
|
||||
//
|
||||
static constexpr sprout::array<long long int, 3> result_attr = result.attr();
|
||||
static constexpr auto hour = result_attr[0];
|
||||
static constexpr auto minute = result_attr[1];
|
||||
static constexpr auto second = result_attr[2];
|
||||
|
||||
// static_assert(hour == 23, "");
|
||||
// static_assert(minute == 22, "");
|
||||
// static_assert(second == 45, "");
|
||||
|
||||
std::cout << hour << std::endl;
|
||||
std::cout << minute << std::endl;
|
||||
std::cout << second << std::endl;
|
||||
|
||||
|
||||
//
|
||||
// compile time output
|
||||
//
|
||||
namespace m = boost::mpl;
|
||||
typedef m::print<m::int_<hour>>::type hour_;
|
||||
typedef m::print<m::int_<minute>>::type minute_;
|
||||
typedef m::print<m::int_<second>>::type second_;
|
||||
|
||||
return 0;
|
||||
}
|
||||
//
|
||||
// Sprout C++ Library
|
||||
//
|
||||
// Copyright (c) 2012
|
||||
// bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/
|
||||
// osyo-manga : http://d.hatena.ne.jp/osyo-manga/
|
||||
//
|
||||
// Readme:
|
||||
// https://github.com/bolero-MURAKAMI/Sprout/blob/master/README
|
||||
//
|
||||
// License:
|
||||
// Boost Software License - Version 1.0
|
||||
// <http://www.boost.org/LICENSE_1_0.txt>
|
||||
//
|
||||
#include <sprout/weed.hpp>
|
||||
#include <boost/mpl/print.hpp>
|
||||
#include <boost/mpl/int.hpp>
|
||||
#include <iostream>
|
||||
|
||||
//
|
||||
// __TIME__ Parser
|
||||
//
|
||||
int
|
||||
main(){
|
||||
namespace w = sprout::weed;
|
||||
|
||||
//
|
||||
// __TIME__ to Sprout.String
|
||||
//
|
||||
static constexpr auto time = sprout::to_string(__TIME__);
|
||||
// static constexpr auto time = sprout::to_string("23:22:45");
|
||||
|
||||
|
||||
//
|
||||
// parse __TIME__
|
||||
//
|
||||
constexpr auto parser = w::int_ >> ':' >> w::int_ >> ':' >> w::int_;
|
||||
static constexpr auto result = w::parse(time.begin(), time.end(), parser);
|
||||
static_assert(result.success(), "failed parse");
|
||||
|
||||
|
||||
//
|
||||
// get result
|
||||
//
|
||||
static constexpr sprout::array<long long int, 3> result_attr = result.attr();
|
||||
static constexpr auto hour = result_attr[0];
|
||||
static constexpr auto minute = result_attr[1];
|
||||
static constexpr auto second = result_attr[2];
|
||||
|
||||
// static_assert(hour == 23, "");
|
||||
// static_assert(minute == 22, "");
|
||||
// static_assert(second == 45, "");
|
||||
|
||||
std::cout << hour << std::endl;
|
||||
std::cout << minute << std::endl;
|
||||
std::cout << second << std::endl;
|
||||
|
||||
|
||||
//
|
||||
// compile time output
|
||||
//
|
||||
namespace m = boost::mpl;
|
||||
typedef m::print<m::int_<hour>>::type hour_;
|
||||
typedef m::print<m::int_<minute>>::type minute_;
|
||||
typedef m::print<m::int_<second>>::type second_;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,36 +1,36 @@
|
|||
//
|
||||
// Sprout C++ Library
|
||||
//
|
||||
// Copyright (c) 2012
|
||||
// bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/
|
||||
// osyo-manga : http://d.hatena.ne.jp/osyo-manga/
|
||||
//
|
||||
// Readme:
|
||||
// https://github.com/bolero-MURAKAMI/Sprout/blob/master/README
|
||||
//
|
||||
// License:
|
||||
// Boost Software License - Version 1.0
|
||||
// <http://www.boost.org/LICENSE_1_0.txt>
|
||||
//
|
||||
#include <sprout/weed.hpp>
|
||||
|
||||
|
||||
int
|
||||
main(){
|
||||
namespace w = sprout::weed;
|
||||
|
||||
static constexpr auto max_string_size = 32;
|
||||
static constexpr auto space = *w::omit[ w::space ];
|
||||
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 result = w::parse(
|
||||
sprout::begin(source), sprout::end(source),
|
||||
remove_space
|
||||
);
|
||||
|
||||
static_assert(result.success(), "fail remove_space parse");
|
||||
static_assert(result.attr() == "homu:mami=10", "");
|
||||
|
||||
return 0;
|
||||
}
|
||||
//
|
||||
// Sprout C++ Library
|
||||
//
|
||||
// Copyright (c) 2012
|
||||
// bolero-MURAKAMI : http://d.hatena.ne.jp/boleros/
|
||||
// osyo-manga : http://d.hatena.ne.jp/osyo-manga/
|
||||
//
|
||||
// Readme:
|
||||
// https://github.com/bolero-MURAKAMI/Sprout/blob/master/README
|
||||
//
|
||||
// License:
|
||||
// Boost Software License - Version 1.0
|
||||
// <http://www.boost.org/LICENSE_1_0.txt>
|
||||
//
|
||||
#include <sprout/weed.hpp>
|
||||
|
||||
|
||||
int
|
||||
main(){
|
||||
namespace w = sprout::weed;
|
||||
|
||||
static constexpr auto max_string_size = 32;
|
||||
static constexpr auto space = *w::omit[ w::space ];
|
||||
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 result = w::parse(
|
||||
sprout::begin(source), sprout::end(source),
|
||||
remove_space
|
||||
);
|
||||
|
||||
static_assert(result.success(), "fail remove_space parse");
|
||||
static_assert(result.attr() == "homu:mami=10", "");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
243
sprout/iterator/counting_iterator.hpp
Normal file
243
sprout/iterator/counting_iterator.hpp
Normal file
|
|
@ -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 ¤t_;
|
||||
}
|
||||
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
|
||||
|
|
@ -4,6 +4,7 @@
|
|||
#include <sprout/config.hpp>
|
||||
#include <sprout/range/adaptor/copied.hpp>
|
||||
#include <sprout/range/adaptor/transformed.hpp>
|
||||
#include <sprout/range/adaptor/size_enumed.hpp>
|
||||
#include <sprout/range/adaptor/sinusoidal.hpp>
|
||||
|
||||
#endif // #ifndef SPROUT_RANGE_ADAPTOR_HPP
|
||||
|
|
|
|||
174
sprout/range/adaptor/counting.hpp
Normal file
174
sprout/range/adaptor/counting.hpp
Normal file
|
|
@ -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
|
||||
|
|
@ -45,8 +45,8 @@ namespace sprout {
|
|||
typedef typename base_type::iterator iterator;
|
||||
typedef typename base_type::size_type size_type;
|
||||
public:
|
||||
SPROUT_CONSTEXPR transformed_range() = default;
|
||||
SPROUT_CONSTEXPR transformed_range(transformed_range const&) = default;
|
||||
transformed_range() = default;
|
||||
transformed_range(transformed_range const&) = default;
|
||||
SPROUT_CONSTEXPR transformed_range(functor_type func, range_type& range1, range2_type& range2)
|
||||
: base_type(
|
||||
iterator(sprout::begin(range1), sprout::begin(range2), func),
|
||||
|
|
@ -77,8 +77,8 @@ namespace sprout {
|
|||
> base_type;
|
||||
typedef typename base_type::iterator iterator;
|
||||
public:
|
||||
SPROUT_CONSTEXPR transformed_range() = default;
|
||||
SPROUT_CONSTEXPR transformed_range(transformed_range const&) = default;
|
||||
transformed_range() = default;
|
||||
transformed_range(transformed_range const&) = default;
|
||||
SPROUT_CONSTEXPR transformed_range(functor_type func, range_type& range)
|
||||
: base_type(
|
||||
iterator(sprout::begin(range), func),
|
||||
|
|
|
|||
Loading…
Reference in a new issue