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Untag dispatch <random> #2693

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merged 10 commits into from
May 5, 2022
Merged

Untag dispatch <random> #2693

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75d8cf6
Untag dispatch <random>
AlexGuteniev May 2, 2022
9f9c9e3
-tag
AlexGuteniev May 2, 2022
d6c541e
template
AlexGuteniev May 2, 2022
4aa7999
Update stl/inc/random
AlexGuteniev May 2, 2022
5b2fada
Update stl/inc/random
AlexGuteniev May 2, 2022
cf2c375
match trait
AlexGuteniev May 2, 2022
c3841c9
simplify
AlexGuteniev May 2, 2022
9e5bb22
numeric value
AlexGuteniev May 2, 2022
21ae3d5
switch to enable_if instead of if constexpr
strega-nil May 4, 2022
6f53446
fix compilation
strega-nil May 4, 2022
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23 changes: 11 additions & 12 deletions stl/inc/random
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Original file line number Diff line number Diff line change
Expand Up @@ -683,12 +683,12 @@ public:
}

void seed(_Seed_t _Value = default_seed) { // set initial values from specified seed value
_Seed(_Value, false, true_type{});
_Seed<true>(_Value, false);
}

template <class _Gen>
void seed(_Gen& _Gx, bool _Readcy = false) { // set initial values from range
_Seed(_Gx, _Readcy, is_arithmetic<_Gen>{});
_Seed<is_arithmetic<_Gen>::value>(_Gx, _Readcy);
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}

_NODISCARD result_type(min)() const {
Expand Down Expand Up @@ -751,15 +751,14 @@ public:
}

protected:
template <class _Gen>
void _Seed(_Gen& _Gx, bool _Readcy, true_type) { // reset sequence from numeric value
linear_congruential<_Seed_t, 40014U, 0U, 2147483563U> _Lc(_Gx == 0U ? default_seed : _Gx);
_Reset(_Lc, _Readcy);
}

template <class _Gen>
void _Seed(_Gen& _Gx, bool _Readcy, false_type) { // reset sequence from generator
_Reset(_Gx, _Readcy);
template <bool _IsNumeric, class _Gen>
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void _Seed(_Gen& _Gx, bool _Readcy) { // reset sequence from numeric value or generator
if constexpr (_IsNumeric) {
linear_congruential<_Seed_t, 40014U, 0U, 2147483563U> _Lc(_Gx == 0U ? default_seed : _Gx);
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_Reset(_Lc, _Readcy);
} else {
_Reset(_Gx, _Readcy);
}
}

template <class _Gen>
Expand Down Expand Up @@ -934,7 +933,7 @@ public:
}

void seed(_Ty _Value = default_seed) { // set initial values from specified seed value
this->_Seed(_Value, false, true_type{});
this->template _Seed<true>(_Value, false);
}

static constexpr int _Kx = (8 * sizeof(_Ty) + 31) / 32;
Expand Down