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kiid.cpp: Fix Boost version incompatibility and use of boost::*::detail 

Fix compile with Boost 1.65.1 (and possibly some or all of the 1.59-1.66
range); remove dependence on private boost::*::detail members.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/12175

Comment tweaks by Mark Roszko @mroszko
This commit is contained in:
Forrest Voight 2022-08-07 02:22:11 -05:00 committed by Wayne Stambaugh
parent b6f6d1ef81
commit bbc0c61ccb
1 changed files with 6 additions and 8 deletions
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14
common/kiid.cpp
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@ -41,14 +41,11 @@
static std::mutex rng_mutex;
// Static rng and generators are used because the overhead of constant seeding is expensive
// We break out the rng separately from the generator because we want to control seeding in cases like unit tests
#if BOOST_VERSION >= 106700
static boost::uuids::detail::random_provider seeder; // required to ensure the rng has a random initial seed
#else
static boost::uuids::detail::seed_rng seeder; // required to ensure the rng has a random initial seed
#endif
static boost::mt19937 rng( seeder );
static boost::uuids::basic_random_generator<boost::mt19937> randomGenerator( rng );
// We rely on the default non-arg constructor of basic_random_generator to provide a random seed.
// We use a separate rng object for cases where we want to control the basic_random_generator
// initial seed by calling SeedGenerator from unit tests and other special cases.
static boost::mt19937 rng;
static boost::uuids::basic_random_generator<boost::mt19937> randomGenerator;
// These don't have the same performance penalty, but we might as well be consistent
static boost::uuids::string_generator stringGenerator;
@ -279,6 +276,7 @@ void KIID::CreateNilUuids( bool aNil )
void KIID::SeedGenerator( unsigned int aSeed )
{
rng.seed( aSeed );
randomGenerator = boost::uuids::basic_random_generator<boost::mt19937>( rng );
}