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32 lines
726 B
32 lines
726 B
4 years ago
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#pragma once
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#include <random>
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#include <string>
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struct uuid //not to spec but idc
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{
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const static constexpr int SIZE=16;
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inline static uuid generate()
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{
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using namespace std;
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static thread_local random_device dev;
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static thread_local mt19937 rng(dev());
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uniform_int_distribution<int> dist(0, 15);
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constexpr const char hex[] = "0123456789abcdef";
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uuid id;
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for(int i=0;i<SIZE;i++) id.str[i] = hex[dist(rng)];
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id.str[SIZE] =0;
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return id;
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}
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inline operator const char*() const { return &str[0]; }
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inline operator const std::array<char, SIZE+1>&() const { return str; }
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inline std::string to_string() const
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{
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return std::string(&str[0]);
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}
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private:
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inline uuid(){}
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std::array<char, SIZE+1> str;
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};
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