27 lines
731 B
C++
27 lines
731 B
C++
#pragma once
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#include <nall/random.hpp>
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#include <nall/string.hpp>
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namespace nall {
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//generate unique GUID
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inline auto guid() -> string {
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LinearFeedbackShiftRegisterGenerator lfsr;
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lfsr.seed(time(nullptr));
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for(uint n = 0; n < 256; n++) lfsr();
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string output;
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for(uint n = 0; n < 4; n++) output.append(hex(lfsr(), 2L));
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output.append("-");
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for(uint n = 0; n < 2; n++) output.append(hex(lfsr(), 2L));
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output.append("-");
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for(uint n = 0; n < 2; n++) output.append(hex(lfsr(), 2L));
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output.append("-");
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for(uint n = 0; n < 2; n++) output.append(hex(lfsr(), 2L));
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output.append("-");
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for(uint n = 0; n < 6; n++) output.append(hex(lfsr(), 2L));
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return {"{", output, "}"};
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}
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}
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