30 lines
594 B
C
30 lines
594 B
C
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#pragma once
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#include <iostream>
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#include <random>
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namespace ofxVariableLab {
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/// \brief create pseudo-random id
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static std::string random_id(std::size_t len = 24){
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static const std::string_view hex_chars = "0123456789abcdef";
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using Generator = std::mt19937;
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Generator gen{std::random_device{}()};
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std::string uuid;
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uuid.reserve(len);
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while(uuid.size() < len){
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auto n = gen();
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for(auto i = Generator::max(); i & 0x8 && uuid.size() < len; i >>= 4){
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uuid += hex_chars[n & 0xf];
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n >>= 4;
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}
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}
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return uuid;
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}
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}
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