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rewrite example/fizzbuzz

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bolero-MURAKAMI 2014-02-20 08:12:02 +09:00
parent 2905965f24
commit bf0f36d5a9
1 changed files with 22 additions and 35 deletions
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57
example/fizzbuzz/main.cpp
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@ -12,39 +12,40 @@
// 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/array.hpp>
#include <sprout/string.hpp> #include <sprout/string.hpp>
#include <sprout/numeric/iota.hpp>
#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 ? "FizzBuzz"
: n % 3 == 0 ? sprout::to_string("Fizz") : n % 3 == 0 ? "Fizz"
: n % 5 == 0 ? sprout::to_string("Buzz") : n % 5 == 0 ? "Buzz"
: sprout::to_string(n); : sprout::to_string(n);
} }
}; };
//
// Test
//
static_assert(fizzbuzz()( 1) == "1", "");
static_assert(fizzbuzz()( 2) == "2", "");
static_assert(fizzbuzz()( 3) == "Fizz", "");
static_assert(fizzbuzz()( 5) == "Buzz", "");
static_assert(fizzbuzz()(15) == "FizzBuzz", "");
#include <sprout/array.hpp>
#include <sprout/algorithm/transform.hpp>
#include <sprout/numeric/iota.hpp>
#include <iostream>
int int
main(){ main(){
typedef fizzbuzz::result_type string; typedef fizzbuzz::result_type string;
//
// Test
//
static_assert(fizzbuzz()( 1) == "1", "");
static_assert(fizzbuzz()( 2) == "2", "");
static_assert(fizzbuzz()( 3) == "Fizz", "");
static_assert(fizzbuzz()( 5) == "Buzz", "");
static_assert(fizzbuzz()(15) == "FizzBuzz", "");
// //
// Sequence [1..15] // Sequence [1..15]
// //
@ -63,21 +64,9 @@ main(){
// Check result // Check result
// //
constexpr auto fizzbuzz_result = sprout::make_array<string>( constexpr auto fizzbuzz_result = sprout::make_array<string>(
sprout::to_string("1"), "1", "2", "Fizz", "4", "Buzz",
sprout::to_string("2"), "Fizz", "7", "8", "Fizz", "Buzz",
sprout::to_string("Fizz"), "11", "Fizz", "13", "14", "FizzBuzz"
sprout::to_string("4"),
sprout::to_string("Buzz"),
sprout::to_string("Fizz"),
sprout::to_string("7"),
sprout::to_string("8"),
sprout::to_string("Fizz"),
sprout::to_string("Buzz"),
sprout::to_string("11"),
sprout::to_string("Fizz"),
sprout::to_string("13"),
sprout::to_string("14"),
sprout::to_string("FizzBuzz")
); );
// Equal result sequence // Equal result sequence
static_assert(result == fizzbuzz_result, ""); static_assert(result == fizzbuzz_result, "");
@ -85,10 +74,8 @@ main(){
// //
// 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;
} }