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types.hpp: implement smin, smax, amin, amax

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Rewritten the following global utility constants:
`umax` returns max number, restricted to unsigned.
`smax` returns max signed number, restricted to integrals.
`smin` returns min signed number, restricted to signed.
`amin` returns smin or zero, less restricted.
`amax` returns smax or umax, less restricted.

Fix operators == and <=> for synthesized rel-ops.
This commit is contained in:
Nekotekina 2021-05-22 10:35:15 +03:00
parent 613777afde
commit 160b131de3
38 changed files with 219 additions and 111 deletions
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6
Utilities/sema.cpp
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@ -22,20 +22,20 @@ void semaphore_base::imp_wait()
const s32 value = m_value.atomic_op([](s32& value)
{
// Use sign bit to acknowledge waiter presence
if (value && value > INT32_MIN)
if (value && value > smin)
{
value--;
if (value < 0)
{
// Remove sign bit
value -= INT32_MIN;
value -= s32{smin};
}
}
else
{
// Set sign bit
value = INT32_MIN;
value = smin;
}
return value;