89 lines
2.2 KiB
C++
89 lines
2.2 KiB
C++
/** \file
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* uuid wrapper class.
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*/
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/*
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* Copyright © 2001, 2002 Sofus Mortensen
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*
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* This material is provided "as is", with absolutely no warranty
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* expressed or implied. Any use is at your own risk. Permission to
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* use or copy this software for any purpose is hereby granted without
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* fee, provided the above notices are retained on all copies.
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* Permission to modify the code and to distribute modified code is
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* granted, provided the above notices are retained, and a notice that
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* the code was modified is included with the above copyright notice.
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*
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* This header is part of Comet version 2.
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* https://github.com/alamaison/comet
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*/
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#ifndef COMET_UUID_H
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#define COMET_UUID_H
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#include <comet/config.h>
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#include <comet/uuid_fwd.h>
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#include <comet/bstr.h>
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#pragma comment( lib, "Rpcrt4" )
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namespace comet {
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template<typename C>
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void uuid_t::copy_to_str(C s[36]) const throw()
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{
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const unsigned char *p = reinterpret_cast<const unsigned char*>(this);
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for (int i=0; i<20; ++i)
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{
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int j = uuid_table()[i];
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if (j >= 0)
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{
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const unsigned char byt = p[j];
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*s = hex_table()[byt >> 4];
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++s;
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*s = hex_table()[byt & 0xf];
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}
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else *s = L'-';
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++s;
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}
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}
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template<typename C>
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bool uuid_t::init_from_str(const C s[], size_t len) throw()
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{
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unsigned char *p = reinterpret_cast<unsigned char*>(this);
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bool has_brace;
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switch (len)
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{
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default: return false;
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case 36: has_brace = false; break;
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case 38:
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if (*s != C('{'))
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return false;
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has_brace = true;
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++s;
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break;
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}
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int i;
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for (i=0; i<20; ++i)
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{
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int j = uuid_table()[i];
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if (j >= 0)
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{
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int a = parse_nibble(*s);
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++s;
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int b = parse_nibble(*s);
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p[j] = unsigned char(a << 4 | b);
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}
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else if (*s != C('-'))
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return false;
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++s;
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}
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return (! has_brace) || (*s == C('}'));
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}
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}
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#endif
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