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helper function to generate rand num

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otavepto 2024-06-05 22:56:51 +03:00
parent 663f1a9350
commit e57daf02d0
2 changed files with 14 additions and 0 deletions
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11
helpers/common_helpers.cpp
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@ -3,6 +3,7 @@
#include <cwchar>
#include <algorithm>
#include <cctype>
#include <random>
namespace common_helpers {
@ -396,3 +397,13 @@ bool common_helpers::dir_exist(const std::wstring &dirpath)
if (dirpath.empty()) return false;
return dir_exist(std::filesystem::path(dirpath));
}
size_t common_helpers::rand_number(size_t max)
{
// https://en.cppreference.com/w/cpp/numeric/random/uniform_int_distribution
std::random_device rd{}; // a seed source for the random number engine
std::mt19937 gen(rd()); // mersenne_twister_engine seeded with rd()
std::uniform_int_distribution<size_t> distrib(0, max);
return distrib(gen);
}

3
helpers/common_helpers/common_helpers.hpp
View File

@ -98,4 +98,7 @@ bool dir_exist(const std::filesystem::path &dirpath);
bool dir_exist(const std::string &dirpath);
bool dir_exist(const std::wstring &dirpath);
// between 0 and max, 0 and max are included
size_t rand_number(size_t max);
}