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Benchmark of hana::string w/ c_str() method
# Copyright Louis Dionne 2016
# Distributed under the Boost Software License, Version 1.0.
# (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
set(datasets)
add_dataset(datasets hetero make hana string1 hana.string.cpp.erb 4 "(0..50).step(10).to_a + (100..300).step(50).to_a" "which\;1")
add_dataset(datasets hetero make hana string2 hana.string.cpp.erb 4 "(0..50).step(10).to_a + (100..300).step(50).to_a" "which\;2")
add_chart(hetero make DATASETS ${datasets})
// Copyright Louis Dionne 2016
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
<% if env[:which] == 1 %>
template <char ...s>
struct string {
private:
static constexpr char const storage[sizeof...(s) + 1] = {s..., '\0'};
public:
static constexpr char const* c_str() {
return &storage[0];
}
};
template <char ...s>
constexpr char const string<s...>::storage[sizeof...(s) + 1];
<% else %>
template <char ...s>
constexpr char const storage[sizeof...(s) + 1] = {s..., '\0'};
template <char ...s>
struct string {
public:
static constexpr char const* c_str() {
return &storage<s...>[0];
}
};
<% end %>
template<int> struct x {};
int main() {
#if defined(METABENCH)
<% env[:k].times do |k| %>
<% (0..n).each do |i| %>
auto x<%= k %>_<%= i %> = string<<%= ([(k+i) % 128] * 100).join(', ') %>>{};
<% end %>
<% end %>
#endif
}
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