64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
#include <iostream>
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#include <iomanip>
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#include "data.hpp"
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#include "toolbox.hpp"
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#define PBSTR "||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||"
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#define PBWIDTH 60
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void printProgress(const float64_t& percentage) noexcept {
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const uint64_t val = static_cast<uint64_t>(percentage * 100);
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const int lpad = static_cast<int>(percentage * PBWIDTH);
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const int rpad = PBWIDTH - lpad;
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printf("%3lu%% [%.*s%*s]\r", val, lpad, PBSTR, rpad, "");
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fflush(stdout);
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}
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void clearProgress() noexcept {
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// Progress bar width + space before + num space + space after
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printf("%*c\r", PBWIDTH + 1 + 3 + 3, ' ');
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}
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template<typename T>
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void test(const uint64_t& N) noexcept {
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#ifdef __DEBUG
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printf("DETERMINISTIC for N=%s of %s sized %s\n", thousand_sep(N).c_str(), typeid(T).name(), format_byte_size(sizeof(T)).c_str());
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print("Estimating memory footprint at : " + format_byte_size(3 * N * sizeof(T)));
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#endif
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T *a = new T[N], *b = new T[N], *c = new T[N];
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T mean = static_cast<T>(0.0);
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const size_t percent = N / 100;
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for(size_t i = 0; i < N; ++i){
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if (i % percent == 0) printProgress(static_cast<float64_t>(i) / N);
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a[i] = static_cast<T>(i < N>>1 ? 0.1 : 1.0);
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b[i] = static_cast<T>(1.0);
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c[i] = a[i] * b[i];
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mean += c[i];
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}
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mean /= static_cast<T>(N);
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clearProgress();
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std::cout << mean << std::endl;
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delete[] a, delete[] b, delete[] c;
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}
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void test_float() noexcept {
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std::cout << std::setprecision(1<<8);
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const uint64_t N = static_cast<uint64_t>(1)<<28;
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test<float128_t>(N);
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test<float64_t>(N);
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test<float32_t>(N);
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//printf("%.128af\n", static_cast<float64_t>(1) / 3);
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//std::cout << static_cast<float64_t>(1) / 3 << std::endl;
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//std::cout << std::hexfloat << static_cast<float64_t>(1) / 3 << std::endl;
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//printf("%.128Lf\n", static_cast<long float64_t>(1) / 3);
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//printf("%.128lf\n", static_cast<float64_t>(1) / 3);
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//printf("%.128f\n", static_cast<float>(1) / 3);
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}
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