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// -----------------------------------------------------------------------------------------------------
// Copyright (c) 2006-2020, Knut Reinert & Freie Universität Berlin
// Copyright (c) 2016-2020, Knut Reinert & MPI für molekulare Genetik
// This file may be used, modified and/or redistributed under the terms of the 3-clause BSD-License
// shipped with this file and also available at: https://github.com/seqan/seqan3/blob/master/LICENSE.md
// -----------------------------------------------------------------------------------------------------
#include <benchmark/benchmark.h>
#include <cstring>
#include <sstream>
#include <string_view>
#include <seqan3/std/charconv>
// -----------------------------------------------------------------------------
// to_chars for integral types
// -----------------------------------------------------------------------------
template <typename arithmetic_type>
static void to_char(benchmark::State & state)
{
arithmetic_type val{120};
std::stringstream ss;
char buffer[10];
for (auto _ : state)
{
auto result = std::to_chars(std::begin(buffer), std::end(buffer), val);
*result.ptr = 0;
ss << buffer;
}
// prevent complete optimisation
[[maybe_unused]] volatile auto fin = ss.rdbuf();
}
BENCHMARK_TEMPLATE(to_char, int8_t);
BENCHMARK_TEMPLATE(to_char, uint8_t);
BENCHMARK_TEMPLATE(to_char, int16_t);
BENCHMARK_TEMPLATE(to_char, uint16_t);
BENCHMARK_TEMPLATE(to_char, int32_t);
BENCHMARK_TEMPLATE(to_char, uint32_t);
BENCHMARK_TEMPLATE(to_char, int64_t);
BENCHMARK_TEMPLATE(to_char, uint64_t);
template <typename arithmetic_type>
static void to_stream(benchmark::State & state)
{
arithmetic_type val{120};
std::stringstream ss;
for (auto _ : state)
{
if constexpr (sizeof(arithmetic_type) == 1)
ss << (int)val;
else
ss << val;
}
// prevent complete optimisation
[[maybe_unused]] volatile auto fin = ss.rdbuf();
}
BENCHMARK_TEMPLATE(to_stream, int8_t);
BENCHMARK_TEMPLATE(to_stream, uint8_t);
BENCHMARK_TEMPLATE(to_stream, int16_t);
BENCHMARK_TEMPLATE(to_stream, uint16_t);
BENCHMARK_TEMPLATE(to_stream, int32_t);
BENCHMARK_TEMPLATE(to_stream, uint32_t);
BENCHMARK_TEMPLATE(to_stream, int64_t);
BENCHMARK_TEMPLATE(to_stream, uint64_t);
BENCHMARK_MAIN();
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