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Constexpr next #789

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merged 23 commits into from
Jun 29, 2022
Merged

Constexpr next #789

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317d559
Implement float_next
mborland May 27, 2022
9ef24ed
Rename test set
mborland Jun 4, 2022
d4333c2
Merge remote-tracking branch 'boostorg/develop' into constexpr_next
mborland Jun 4, 2022
c479e45
Implement float prior
mborland Jun 5, 2022
7e7e677
Add function overloads
mborland Jun 5, 2022
0d199bc
Add C++14esque overloads to promote args
mborland Jun 5, 2022
f127570
Reduce duplication using promote_args
mborland Jun 5, 2022
c439b75
Add constexpr min and max
mborland Jun 18, 2022
b9aaaf2
Add standard float distance
mborland Jun 18, 2022
d93aabd
Add special radix impl
mborland Jun 18, 2022
0e64de7
Fix include test
mborland Jun 18, 2022
2448398
Minimal testing
mborland Jun 20, 2022
340631b
Add c++17esque overloads to traits
mborland Jun 25, 2022
9bedeb5
Refactoring
mborland Jun 26, 2022
c534ddd
Fix warnings
mborland Jun 26, 2022
34f5e55
Remove policy usage
mborland Jun 26, 2022
3f58fa0
Add long double guard and test
mborland Jun 27, 2022
a6c51b5
Fix definition of nexttoward
mborland Jun 27, 2022
ea864c0
Remove unneeded file and fix template argument deduction
mborland Jun 27, 2022
4ca98ab
Move float_next/prev into detail namespace
mborland Jun 28, 2022
b9a0e2b
Remove all policy cruft
mborland Jun 28, 2022
13a5070
Add test comparing to existing next implementation
mborland Jun 28, 2022
42caf19
Update docs
mborland Jun 29, 2022
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10 changes: 8 additions & 2 deletions doc/sf/ccmath.qbk
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Expand Up @@ -9,7 +9,7 @@ LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

[heading Description]

`Constexpr` implementations of the functionality found in `<cmath>`.
`Constexpr` implementations of the functionality found in `<cmath>` and `<cstdlib>` [@https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p0533r9.pdf proposed for C++23].
In a `constexpr` context the functions will use an implementation defined in boost.
If the context is not `constexpr` the functionality will be directly from the STL implementation of `<cmath>` used by the compiler.
All functions that take an `Integer` type and return a `double` simply cast the `Integer` argument to a `double`.
Expand Down Expand Up @@ -187,7 +187,13 @@ All of the following functions require C++17 or greater.
Requires compiling with fma flag

template <typename Arithmetic1, typename Arithmetic2, typename Arithmetic3>
inline constepxr Promoted fma(Arithmetic1 x, Arithmetic2 y, Arithmetic3 z) noexcept
inline constexpr Promoted fma(Arithmetic1 x, Arithmetic2 y, Arithmetic3 z) noexcept

template <typename Arithmetic1, typename Arithmetic2>
constexpr Promoted nextafter(Arithmetic1 from, Arithmetic2 to)

template <typename T>
constexpr Promoted nexttoward(T from, long double to)

} // Namespaces

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