117 lines
1.9 KiB
C++
117 lines
1.9 KiB
C++
#include <cassert>
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#include <iostream>
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#include <random>
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#include <vector>
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#include "algotune.h"
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namespace algotune {
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static std::mt19937 rng;
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static std::random_device devrand;
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void
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reseed()
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{
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rng.seed(devrand());
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}
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int
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rand_int(int low, int high)
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{
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std::uniform_int_distribution<int> dist(low, high);
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return dist(rng);
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}
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int64_t
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rand_int64(int64_t low, int64_t high)
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{
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std::uniform_int_distribution<int64_t> dist(low, high);
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return dist(rng);
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}
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std::vector<int>
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gen_int_vector(int size, int low, int high)
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{
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assert(low < high);
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reseed();
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std::vector<int> v(size);
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for (int i = 0; i < size; i++) {
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v[i] = rand_int(low, high);
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}
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return v;
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}
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std::vector<int64_t>
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gen_int64_vector(int64_t size, int64_t low, int64_t high)
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{
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assert(low < high);
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reseed();
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std::vector<int64_t> v(size);
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for (int64_t i = 0; i < size; i++) {
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v[i] = rand_int64(low, high);
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}
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return v;
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}
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int64_t
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stress_test_int(bool(*func)(std::vector<int>&), int size, int low, int high)
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{
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assert(func != nullptr);
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std::vector<int> v;
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bool result = true;
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int64_t iterations = 0;
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int vsize = 0;
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while (result) {
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iterations++;
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vsize = rand_int(0, size);
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v = gen_int_vector(vsize, low, high);
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result = func(v);
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if ((iterations > 1) && ((iterations % display_step) == 0)) {
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std::cout << "Iteration: " << iterations << std::endl;
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}
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}
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return iterations;
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}
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int64_t
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stress_test_int64(bool(*func)(std::vector<int64_t>&), int64_t size, int64_t low, int64_t high)
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{
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assert(func != nullptr);
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std::vector<int64_t> v;
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bool result = true;
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int64_t iterations = 0;
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int64_t vsize = 0;
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while (result) {
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iterations++;
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vsize = rand_int64(0, size);
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v = gen_int64_vector(vsize, low, high);
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result = func(v);
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if ((iterations > 1) && ((iterations % display_step) == 0)) {
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std::cout << "Iteration: " << iterations << std::endl;
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}
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}
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return iterations;
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}
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} // namespace algotune
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