Boost.Uuid is a C++ library that provides an implementation of Universally Unique Identifiers.
Boost.Uuid is a C++ library that provides an implementation of Universally Unique Identifiers.
Questions tagged [boost-uuid]
29 questions
104
votes
2 answers
Example of UUID generation using Boost in C++
I want to generate just random UUID's, as it is just important for instances in my program to have unique identifiers. I looked into Boost UUID, but I can't manage to generate the UUID because I don't understand which class and method to use.
I…
Nikola
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14
votes
1 answer
boost::uuids::uuid as a key in std::unordered_map?
I'm using clang (CXX='clang++ -std=c++11 -stdlib=libc++') on Mac OS X, with boost 1.53.0.
I want to use uuid as keys in unordered_map, but getting the following errors:
/usr/bin/../lib/c++/v1/type_traits:748:38: error: implicit instantiation of…
rincewind
- 1,103
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9
votes
1 answer
boost::uuids::random_generator and uniqueness with multiple threads
When I generate the random number with single thread, no duplicate in 4M uuids generated but if I generate with two threads each 1M, I see roughly 16-20 duplicates. What could be the reason?
class TestUuid
{
public:
std::string GenerateUUid(){
…
rjoshi
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8
votes
3 answers
Check if std::string is a valid uuid using boost
I want to check if a given string is a valid UUID using boost.
This is what I have come up with by looking at the documentation on the boost website:
void validate_uuid(const std::string& value)
{
try
{
…
ksl
- 4,519
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7
votes
1 answer
string to boost::uuid conversion
I've just started using boost in c++ and I just wanted to ask a couple of questions relating to uuids.
I am loading in a file which requires I know the uuids so I can link some objects together. For this reason, I'm trying to write my own uuids but…
user3353807
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6
votes
2 answers
Is boost::uuids::random_generator thread safe?
Consider this function compiling with g++ -std=c++11 (GCC 4.7.2):
boost::uuids::uuid getID()
{
static boost::uuids::random_generator generator;
return generator();
}
Is it safe to call getID from multiple threads?
As it is mentioned here…
Vahagn
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5
votes
2 answers
Boost compile error on converting UUID to string using boost::lexical_cast
I have this code which is based on several posts in SO:
boost::uuids::uuid uuid = boost::uuids::random_generator()();
auto uuidString= boost::lexical_cast(uuid);
but when I am compiling this code, I am getting this error:
Source type…
mans
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5
votes
1 answer
Why do I get uninitialized-value warnings from Valgrind when I use Boost UUID?
I have a class with members:
std::string mName;
boost::uuids::uuid mId;
In the constructor I wrote:
mName = boost::lexical_cast(mId);
Valgrind writes:
==30714== Use of uninitialised value of size 8
==30714== at 0x69E92FC: ??? (in…
Max Frai
- 61,946
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3
votes
1 answer
How to compile specific Boost libraries to a DLL
I am trying to embed the boost uuid package in my project. For ease we would like to just include some DLLs, as we do with most libraries we use. I can't figure out how to get just the DLLs for the uuid package (and any necessary dependencies). I…
zaknotzach
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3
votes
1 answer
Analysis of Valgrind log for boost::uuid
I am using boost::uuid in order to generate unique ids:
string UUid()
{
boost::uuids::uuid uuid = boost::uuids::random_generator()();
return boost::lexical_cast(uuid);
}
When I use valgrind in order to analyse my code i get…
Hani Goc
- 2,371
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3
votes
2 answers
How to serialize a boost::uuid with cereal
Trying to serialize this simple class:
class Data
{
public:
Data();
Data(boost::uuids::uuid id);
Data(const Data&) = delete;
Data& operator=(const Data&) = delete;
inline boost::uuids::uuid getGuid() { return guid; }
…
kittikun
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3
votes
3 answers
Is it safe to assume boost::uuid won't return a duplicate?
I'm using boost uuid to generate session ids.
std::string SessionGenerator::generate()
{
boost::uuids::uuid id = m_rgen();
m_ss.clear();
m_ss.str("");
m_ss << id;
return m_ss.str();
}
Is it safe to assume that I'm never going…
jmasterx
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2
votes
2 answers
Are there any issues with making random_generator static here?
I need to generate large number of UUIDs. If I don't make rg static, it would take lot of time in default constructing it every time. Is there anything wrong if I make it static, would it hurt uniqueness of uuids in anyway?
Is there any better way…
Strike
- 21
- 1
2
votes
1 answer
How to integrate Boost.uuid into my cross-platform code?
I am writing an application with cocos2d-x which is a C++ cross-platform game engine. In the game I need to generate UUID without any input. Just I want to call a function generateUuid and assign the value returned by that function to an…
Narek
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2
votes
1 answer
Define a static const Universal Unique Identifier (UUID)
Context
I oftenly use UUID implementation of Boost library to identify derived classes.
To do so I usually use the following :
In the declaration file :
#include "ClassA.h"
#include
class SubClass1 : public ClassA {
…
gleeen.gould
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