… handle non-self-equal nullValue

[GDC] GCC9 last-minute fix: MinGW changes to get phobos to build
merged-on-behalf-of: Nicholas Wilson <[email protected]>

[S390] std.math: Use IBMZ_Any for SystemZ bindings
merged-on-behalf-of: Nicholas Wilson <[email protected]>

- unittests did fail with DIP1000 due to missing return scope
  inference in chained range, thus leading to a scope violation
  which prevented `@safe` inference
- fixed unittests by adding return scope to chain.Result
- would still fail under dip1000 with other ranges that
  miss return scope on their opSlice
- should not have any effect on non-DIP1000 usage

fix Issue 19777 - SortedRange.opSlice should infer safety

…d.randomUUID

On 64-bit architectures use 64 bits of entropy to initialize
thread-local `rndGen`.

The motivation for this change is std.uuid defaults to using `rndGen`
to generate UUIDs. If every `rndGen` starts in one of 2^^32 states then
if 77000 independent programs each generate a single UUID there is a 50%
chance that at least two of them generate the same initial UUID (and all
subsequent UUIDs would be identical as well). Not just Phobos but also
C++ boost::uuids::random_generator defaults to generating UUIDs with a
Mersenne Twister initialized from a 32-bit seed, exacerbating the
collision problem further. If instead there are 2^^64 possible initial
states of `rndGen` there can be over 5 billion independent `rndGen`s
before there is a 50% chance of two having identical initial states.

This change is limited to 64-bit architectures to avoid a measurable
performance decrease, because many programs are not generating UUIDs.

Fix Issue 19836 - Excessive probability of UUID collisions in std.uuid.randomUUID
merged-on-behalf-of: Nicholas Wilson <[email protected]>

Merge remote-tracking branch 'upstream/stable' into merge_stable

std.mmfile: MAP_ANON is only defined in core.sys.posix.sys.mman
merged-on-behalf-of: Petar Kirov <[email protected]>

…all & any"

…emplates

Revert "Decrease template instantiation in std.algorithm.searching : all & any"
merged-on-behalf-of: Petar Kirov <[email protected]>

Fix Issue 6657 - dotProduct overload for small fixed size arrays
merged-on-behalf-of: Nathan Sashihara <[email protected]>

Merge remote-tracking branch 'upstream/stable' into merge_stable
merged-on-behalf-of: Petar Kirov <[email protected]>

Changed the private enhanced seeding method for `rndGen` to something
that is fast on both 64 bit and 32 bit machines so can be enabled
regardless of architecture. When compiled with LDC it is about 1.35x
the speed of public `Mt19937.seed(uint)`.

Fix Issue 19226 - std.typecons.Nullable(T, T nullValue) doesn't fully handle non-self-equal nullValue

Move std.numeric.CustomFloat.ToBinary to top-level
merged-on-behalf-of: Sebastian Wilzbach <[email protected]>

Implement aliasSeqOf for all iterables
merged-on-behalf-of: unknown

primitives: add scope
merged-on-behalf-of: Sebastian Wilzbach <[email protected]>

Issue 3525 was fixed
merged-on-behalf-of: Sebastian Wilzbach <[email protected]>

Fix issues arising from the DMD 9029 fix (types match to alias)
merged-on-behalf-of: Nicholas Wilson <[email protected]>

Improved error message when an assocArray can't be created
merged-on-behalf-of: Nicholas Wilson <[email protected]>

Added description to EnumMember documentation to get name of value
merged-on-behalf-of: Nicholas Wilson <[email protected]>

regex/internal/parser.d: remove unreachable statement
merged-on-behalf-of: Nicholas Wilson <[email protected]>

Build entire Phobos with -preview=dip1000

Add changelog entry for -dip1000
merged-on-behalf-of: Nicholas Wilson <[email protected]>

Fix broken unittest
merged-on-behalf-of: Sebastian Wilzbach <[email protected]>

Fixed Issue 13965 - More handy schwartzSort
merged-on-behalf-of: Nicholas Wilson <[email protected]>

…tuff

The check-and-initialize pattern dates back to when `rnd` was seeded
with `unpredictableSeed`. With a fixed seed that's unnecessary.

Issue 19836 followup - also fix on 32 bit machines
merged-on-behalf-of: Nicholas Wilson <[email protected]>

Remove unused imports from std.random.rndGen

Remove unnecessary check-and-initialize in std.alorithm.internal.rndstuff
merged-on-behalf-of: Nicholas Wilson <[email protected]>

add isLvalue() to prepare for rvalue ref
merged-on-behalf-of: Nicholas Wilson <[email protected]>

deprecate deprecated stuff in std.json
merged-on-behalf-of: Nicholas Wilson <[email protected]>

fix issue 19883 - Cyclic constructor call for BigInt(dstring)
merged-on-behalf-of: Nicholas Wilson <[email protected]>

hasLvalueElements(): use overloading to detect lvalue
merged-on-behalf-of: Walter Bright <[email protected]>

fix rvalue test for Final
merged-on-behalf-of: Nicholas Wilson <[email protected]>

* Faster isNaN test

initializers. This prevents the compiler from executing the initializers
using CTFE during importing, when using unittest.

…n, bigEndianToNative, littleEndianToNative, nativeToLittleEndian

Change version(unittest) code to use accessors to wrap the static initializers
merged-on-behalf-of: Nicholas Wilson <[email protected]>

Fix Issue 19892 - Add CTFE support for std.bitmanip: nativeToBigEndian, bigEndianToNative, littleEndianToNative, nativeToLittleEndian
merged-on-behalf-of: Nicholas Wilson <[email protected]>

Fix issue 13471: can't use crc at CTFE
merged-on-behalf-of: Nathan Sashihara <[email protected]>

Use selective top-level module imports in std.algorithm
merged-on-behalf-of: Nicholas Wilson <[email protected]>

Use selective top-level module imports in std.{typecons,uni,utf}
merged-on-behalf-of: Nicholas Wilson <[email protected]>

…,net,outbuffer}

Use selective top-level module imports in std.{path,range,regex}
merged-on-behalf-of: Nicholas Wilson <[email protected]>

Use selective top-level module imports in std.{functional,getopt,math,net,outbuffer}
merged-on-behalf-of: Nicholas Wilson <[email protected]>

Use selective top-level module imports in std.{base64,csv,datetime}
merged-on-behalf-of: Nicholas Wilson <[email protected]>

cores if available

Currently std.parallelism.totalCPUs is implemented by
sysconf(_SC_NPROCESSORS_ONLN) on Posix platoform. However, on GNU/Linux,
usable number of processors may be restricted if a process runs in
container. In case it's better to use sched_getaffinity(2).

ref: http://man7.org/linux/man-pages/man1/nproc.1.html

…loat

Fixes Issue 19899 - std.bitmanip.bitsSet should accept const arguments

This also makes `swapEndian` not propagate `const` to its return value
which is arguably an improvement
(see #6682 (comment)).