AuroraSupport/AuroraRuntime
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[*] Amend 999f3e69

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This commit is contained in:
Reece Wilson 2023-11-17 08:19:26 +00:00
parent 999f3e69ca
commit b88c61c16d
3 changed files with 16 additions and 8 deletions
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4
Source/RNG/AuRandomDevice.cpp
View File

@ -172,7 +172,7 @@ namespace Aurora::RNG
auto uMassiveWord = NextU32();
auto uUpperBound = AuPageRoundUp<AuUInt32>(uRange, 2);
AuUInt32 uNext {};
while ((uNext = (uMassiveWord & (uUpperBound - 1))) >= uRange)
while ((uNext = (uMassiveWord & (uUpperBound - 1))) > uRange)
{
uMassiveWord = NextU32();
}
@ -190,7 +190,7 @@ namespace Aurora::RNG
auto uMassiveWord = NextU32();
auto uUpperBound = AuPageRoundUp<AuUInt32>(uRange, 2);
AuUInt32 uNext {};
while ((uNext = (uMassiveWord & (uUpperBound - 1))) >= uRange)
while ((uNext = (uMassiveWord & (uUpperBound - 1))) > uRange)
{
uMassiveWord = NextU32();
}

6
Source/RNG/AuWELL.cpp
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@ -49,21 +49,21 @@ static auline void WELL_SeedRand(WELLRand *rand, AuUInt32 seed)
/**
* Creates a new random number generator from a given seed.
*/
WELLRand &&WELL_SeedRand(AuUInt32 seed)
WELLRand WELL_SeedRand(AuUInt32 seed)
{
WELLRand rand {};
WELL_SeedRand(&rand, seed);
return AuMove(rand);
}
WELLRand &&WELL_SeedRand64(AuUInt64 seed)
WELLRand WELL_SeedRand64(AuUInt64 seed)
{
WELLRand rand {};
WELL_SeedRand64(&rand, seed);
return AuMove(rand);
}
WELLRand &&WELL_SeedRandBig64(const AuArray<AuUInt8, 64> &seed)
WELLRand WELL_SeedRandBig64(const AuArray<AuUInt8, 64> &seed)
{
WELLRand rand {};
static_assert(64 == sizeof(rand.state));

14
Source/RNG/AuWELL.hpp
View File

@ -6,6 +6,14 @@ struct WELLRand
int index {};
AuFutexMutex lock;
inline WELLRand() = default;
inline WELLRand(WELLRand &&rand)
{
AuMemcpy(this->state, rand.state, sizeof(this->state));
this->index = rand.index;
}
inline WELLRand &operator =(WELLRand &&rand)
{
AuMemcpy(this->state, rand.state, sizeof(this->state));
@ -14,8 +22,8 @@ struct WELLRand
}
};
WELLRand &&WELL_SeedRand(AuUInt32 seed);
WELLRand &&WELL_SeedRandBig64(const AuArray<AuUInt8, 64> &seed);
WELLRand &&WELL_SeedRand64(AuUInt64 seed);
WELLRand WELL_SeedRand(AuUInt32 seed);
WELLRand WELL_SeedRandBig64(const AuArray<AuUInt8, 64> &seed);
WELLRand WELL_SeedRand64(AuUInt64 seed);
AuUInt32 WELL_NextLong(WELLRand* rand);
void WELL_NextBytes(WELLRand *rand, void *in, AuUInt32 length);