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Update to use C++ random generator

This commit is contained in:
Chaoguang Lin 2021-02-09 19:06:13 -08:00
parent 0f969f0f95
commit 1ae883b150
1 changed files with 8 additions and 8 deletions
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16
bindings/c/test/unit/unit_tests.cpp
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@ -34,6 +34,7 @@
#include <thread>
#include <tuple>
#include <vector>
#include <random>
#define DOCTEST_CONFIG_IMPLEMENT
#include "doctest.h"
@ -2047,14 +2048,13 @@ TEST_CASE("fdb_database_force_recovery_with_data_loss") {
}
std::string random_hex_string(size_t length) {
srand(time(0)); // set random seed
auto randchar = []() -> char {
const char charset[] = "0123456789"
"ABCDEF"
"abcdef";
const size_t max_index = (sizeof(charset) - 1);
return charset[rand() % max_index];
};
const char charset[] = "0123456789"
"ABCDEF"
"abcdef";
// construct a random generator engine from a time-based seed:
std::default_random_engine generator(time(nullptr));
std::uniform_int_distribution<int> distribution(0, strlen(charset) - 1);
auto randchar = [&charset, &generator, &distribution]() -> char { return charset[distribution(generator)]; };
std::string str(length, 0);
std::generate_n(str.begin(), length, randchar);
return str;