Function random_string

subprojects/llama.cpp/tests/test-jinja.cpp:1889–1900

Helper to generate random string

// Helper to generate random string
static std::string random_string(std::mt19937 & rng, size_t max_len) {
    static const char charset[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_";
    std::uniform_int_distribution<size_t> len_dist(0, max_len);
    std::uniform_int_distribution<size_t> char_dist(0, sizeof(charset) - 2);
    size_t len = len_dist(rng);
    std::string result;
    result.reserve(len);
    for (size_t i = 0; i < len; ++i) {
        result += charset[char_dist(rng)];
    }
    return result;
}

// Helper to execute a fuzz test case - returns true if no crash occurred
static bool fuzz_test_template(const std::string & tmpl, const json & vars) {