3a86e0bd29
``` ----------------------------------------------- Benchmark old new ----------------------------------------------- BM_getline_string 318 ns 32.4 ns ```
35 lines
898 B
C++
35 lines
898 B
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03
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#include <istream>
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#include <sstream>
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#include <benchmark/benchmark.h>
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void BM_getline_string(benchmark::State& state) {
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std::istringstream iss;
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std::string str;
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str.reserve(128);
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iss.str("A long string to let getline do some more work, making sure that longer strings are parsed fast enough");
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for (auto _ : state) {
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benchmark::DoNotOptimize(iss);
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std::getline(iss, str);
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benchmark::DoNotOptimize(str);
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iss.seekg(0);
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}
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}
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BENCHMARK(BM_getline_string);
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BENCHMARK_MAIN();
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