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26 lines
764 B
C++
26 lines
764 B
C++
// A quick and dirty performance test.
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// For actual benchmarks see https://github.com/fmtlib/format-benchmark.
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#include <atomic>
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#include <chrono>
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#include <iterator>
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#include "fmt/format.h"
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int main() {
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const int n = 10000000;
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auto start = std::chrono::steady_clock::now();
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for (int iteration = 0; iteration < n; ++iteration) {
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auto buf = fmt::memory_buffer();
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fmt::format_to(std::back_inserter(buf),
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"Hello, {}. The answer is {} and {}.", 1, 2345, 6789);
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}
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std::atomic_signal_fence(std::memory_order_acq_rel); // Clobber memory.
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auto end = std::chrono::steady_clock::now();
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// Print time in milliseconds.
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std::chrono::duration<double> duration = end - start;
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fmt::print("{:.1f}\n", duration.count() * 1000);
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}
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